From 7be0ed926cdef1d39661487d4104db8ce20fb3d4 Mon Sep 17 00:00:00 2001 From: Moudy Date: Tue, 5 May 2026 15:38:18 +0200 Subject: [PATCH 01/13] feat(wallet)!: add derive_keys_for_shared_account and PrivateShared variant BREAKING CHANGE: `pda_accounts` field in NSSAUserData renamed to `shared_accounts`. `PrivacyPreservingAccount` enum has a new `PrivateShared` variant, exhaustive matches must handle it. --- .../src/key_management/group_key_holder.rs | 63 ++++++++++ key_protocol/src/key_protocol_core/mod.rs | 12 +- wallet/src/privacy_preserving_tx.rs | 116 +++++++++++++++--- 3 files changed, 168 insertions(+), 23 deletions(-) diff --git a/key_protocol/src/key_management/group_key_holder.rs b/key_protocol/src/key_management/group_key_holder.rs index 9e7bd8fc..e6634f88 100644 --- a/key_protocol/src/key_management/group_key_holder.rs +++ b/key_protocol/src/key_management/group_key_holder.rs @@ -105,6 +105,21 @@ impl GroupKeyHolder { .produce_private_key_holder(None) } + /// Derive keys for a shared regular (non-PDA) private account. + /// + /// Uses a distinct domain separator from `derive_keys_for_pda` to prevent cross-domain + /// key collisions. The `tag` should be a stable, unique 32-byte value (e.g. derived from + /// a random identifier at account creation time). + #[must_use] + pub fn derive_keys_for_shared_account(&self, tag: &[u8; 32]) -> PrivateKeyHolder { + const PREFIX: &[u8; 32] = b"/LEE/v0.3/GroupKeyDerivation/SHA"; + let mut hasher = sha2::Sha256::new(); + hasher.update(PREFIX); + hasher.update(self.gms); + hasher.update(tag); + SecretSpendingKey(hasher.finalize_fixed().into()).produce_private_key_holder(None) + } + /// Encrypts this holder's GMS under the recipient's [`SealingPublicKey`]. /// /// Uses an ephemeral ECDH key exchange to derive a shared secret, then AES-256-GCM @@ -501,4 +516,52 @@ mod tests { let bob_account_id = AccountId::for_private_pda(&program_id, &pda_seed, &bob_npk); assert_eq!(alice_account_id, bob_account_id); } + + /// Same GMS + same tag produces same keys for shared accounts. + #[test] + fn shared_account_same_gms_same_tag_produces_same_keys() { + let gms = [42_u8; 32]; + let tag = [1_u8; 32]; + let holder_a = GroupKeyHolder::from_gms(gms); + let holder_b = GroupKeyHolder::from_gms(gms); + + let npk_a = holder_a + .derive_keys_for_shared_account(&tag) + .generate_nullifier_public_key(); + let npk_b = holder_b + .derive_keys_for_shared_account(&tag) + .generate_nullifier_public_key(); + + assert_eq!(npk_a, npk_b); + } + + /// Different tags produce different keys for shared accounts. + #[test] + fn shared_account_different_tags_produce_different_keys() { + let holder = GroupKeyHolder::from_gms([42_u8; 32]); + let npk_a = holder + .derive_keys_for_shared_account(&[1_u8; 32]) + .generate_nullifier_public_key(); + let npk_b = holder + .derive_keys_for_shared_account(&[2_u8; 32]) + .generate_nullifier_public_key(); + + assert_ne!(npk_a, npk_b); + } + + /// PDA and shared account derivations from the same GMS + same bytes never collide. + #[test] + fn pda_and_shared_derivations_do_not_collide() { + let holder = GroupKeyHolder::from_gms([42_u8; 32]); + let bytes = [1_u8; 32]; + + let pda_npk = holder + .derive_keys_for_pda(&PdaSeed::new(bytes)) + .generate_nullifier_public_key(); + let shared_npk = holder + .derive_keys_for_shared_account(&bytes) + .generate_nullifier_public_key(); + + assert_ne!(pda_npk, shared_npk); + } } diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index d12f83a1..1abab24b 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -36,12 +36,12 @@ pub struct NSSAUserData { /// An older wallet binary that re-serializes this struct will drop the field. #[serde(default)] pub group_key_holders: BTreeMap, - /// Cached plaintext state of private PDA accounts, keyed by `AccountId`. - /// Updated after each private PDA transaction by decrypting the circuit output. + /// Cached plaintext state of shared accounts (PDAs and regular shared accounts), + /// keyed by `AccountId`. Updated after each transaction by decrypting the circuit output. /// The sequencer only stores encrypted commitments, so this local cache is the - /// only source of plaintext state for private PDAs. - #[serde(default, alias = "group_pda_accounts")] - pub pda_accounts: BTreeMap, + /// only source of plaintext state for these accounts. + #[serde(default, alias = "group_pda_accounts", alias = "pda_accounts")] + pub shared_accounts: BTreeMap, } impl NSSAUserData { @@ -101,7 +101,7 @@ impl NSSAUserData { public_key_tree, private_key_tree, group_key_holders: BTreeMap::new(), - pda_accounts: BTreeMap::new(), + shared_accounts: BTreeMap::new(), }) } diff --git a/wallet/src/privacy_preserving_tx.rs b/wallet/src/privacy_preserving_tx.rs index 35419534..ba1a6a73 100644 --- a/wallet/src/privacy_preserving_tx.rs +++ b/wallet/src/privacy_preserving_tx.rs @@ -30,6 +30,15 @@ pub enum PrivacyPreservingAccount { program_id: ProgramId, seed: PdaSeed, }, + /// A shared regular private account with externally-provided keys (e.g. from GMS). + /// Uses standard `AccountId = from((&npk, identifier))` and mask 1/2. + /// Works with `authenticated_transfer` and all existing programs out of the box. + PrivateShared { + nsk: NullifierSecretKey, + npk: NullifierPublicKey, + vpk: ViewingPublicKey, + identifier: Identifier, + }, } impl PrivacyPreservingAccount { @@ -49,6 +58,7 @@ impl PrivacyPreservingAccount { identifier: _, } | Self::PrivatePda { .. } + | Self::PrivateShared { .. } ) } } @@ -111,6 +121,7 @@ impl AccountManager { nsk: None, npk, identifier, + is_pda: false, vpk, pre_state: auth_acc, proof: None, @@ -130,6 +141,16 @@ impl AccountManager { let pre = private_pda_preparation(wallet, nsk, npk, vpk, &program_id, &seed).await?; + State::Private(pre) + } + PrivacyPreservingAccount::PrivateShared { + nsk, + npk, + vpk, + identifier, + } => { + let pre = private_shared_preparation(wallet, nsk, npk, vpk, identifier).await?; + State::Private(pre) } }; @@ -184,22 +205,17 @@ impl AccountManager { .iter() .map(|state| match state { State::Public { .. } => InputAccountIdentity::Public, - State::Private(pre) if pre.identifier == u128::MAX => { - // Private PDA account - match (pre.nsk, pre.proof.clone()) { - (Some(nsk), Some(membership_proof)) => { - InputAccountIdentity::PrivatePdaUpdate { - ssk: pre.ssk, - nsk, - membership_proof, - } - } - _ => InputAccountIdentity::PrivatePdaInit { - npk: pre.npk, - ssk: pre.ssk, - }, - } - } + State::Private(pre) if pre.is_pda => match (pre.nsk, pre.proof.clone()) { + (Some(nsk), Some(membership_proof)) => InputAccountIdentity::PrivatePdaUpdate { + ssk: pre.ssk, + nsk, + membership_proof, + }, + _ => InputAccountIdentity::PrivatePdaInit { + npk: pre.npk, + ssk: pre.ssk, + }, + }, State::Private(pre) => match (pre.nsk, pre.proof.clone()) { (Some(nsk), Some(membership_proof)) => { InputAccountIdentity::PrivateAuthorizedUpdate { @@ -249,6 +265,7 @@ struct AccountPreparedData { nsk: Option, npk: NullifierPublicKey, identifier: Identifier, + is_pda: bool, vpk: ViewingPublicKey, pre_state: AccountWithMetadata, proof: Option, @@ -294,6 +311,7 @@ async fn private_acc_preparation( nsk: Some(nsk), npk: from_npk, identifier: from_identifier, + is_pda: false, vpk: from_vpk, pre_state: sender_pre, proof, @@ -317,7 +335,7 @@ async fn private_pda_preparation( let acc = wallet .storage .user_data - .pda_accounts + .shared_accounts .get(&account_id) .cloned() .unwrap_or_default(); @@ -347,6 +365,7 @@ async fn private_pda_preparation( nsk: exists.then_some(nsk), npk, identifier: u128::MAX, + is_pda: true, vpk, pre_state, proof, @@ -354,3 +373,66 @@ async fn private_pda_preparation( epk, }) } + +async fn private_shared_preparation( + wallet: &WalletCore, + nsk: NullifierSecretKey, + npk: NullifierPublicKey, + vpk: ViewingPublicKey, + identifier: Identifier, +) -> Result { + let account_id = nssa::AccountId::from((&npk, identifier)); + + let acc = wallet + .storage + .user_data + .shared_accounts + .get(&account_id) + .cloned() + .unwrap_or_default(); + + let exists = acc != nssa_core::account::Account::default(); + let pre_state = AccountWithMetadata::new(acc, exists, (&npk, identifier)); + + let proof = if exists { + wallet + .check_private_account_initialized(account_id) + .await + .unwrap_or(None) + } else { + None + }; + + let eph_holder = EphemeralKeyHolder::new(&npk); + let ssk = eph_holder.calculate_shared_secret_sender(&vpk); + let epk = eph_holder.generate_ephemeral_public_key(); + + Ok(AccountPreparedData { + nsk: exists.then_some(nsk), + npk, + identifier, + is_pda: false, + vpk, + pre_state, + proof, + ssk, + epk, + }) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn private_shared_is_private() { + let acc = PrivacyPreservingAccount::PrivateShared { + nsk: [0; 32], + npk: NullifierPublicKey([1; 32]), + vpk: ViewingPublicKey::from_scalar([2; 32]), + identifier: 42, + }; + assert!(acc.is_private()); + assert!(!acc.is_public()); + } +} From cd545819e7cb001aff45e64893cf0ddc1d707c22 Mon Sep 17 00:00:00 2001 From: Moudy Date: Tue, 5 May 2026 18:55:51 +0200 Subject: [PATCH 02/13] feat(wallet)!: add group CLI commands with --for-gms account creation BREAKING CHANGE: `NewSubcommand::Private` has new required fields (`for_gms`, `pda`, `seed`, `program_id`). Code constructing this variant must include them (use `None`/`false` for defaults). `shared_accounts` value type changed from `Account` to `SharedAccountEntry`. --- key_protocol/src/key_protocol_core/mod.rs | 20 ++- wallet/src/cli/account.rs | 174 ++++++++++++++++++---- wallet/src/cli/group.rs | 159 ++++---------------- wallet/src/cli/mod.rs | 6 + wallet/src/lib.rs | 35 +++++ wallet/src/privacy_preserving_tx.rs | 4 +- 6 files changed, 232 insertions(+), 166 deletions(-) diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index 1abab24b..e17c35a7 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -21,6 +21,15 @@ pub struct UserPrivateAccountData { pub accounts: Vec<(Identifier, Account)>, } +/// Metadata for a shared account (GMS-derived), stored alongside the cached plaintext state. +/// The group label and identifier are needed to re-derive keys during sync. +#[derive(Clone, Debug, Serialize, Deserialize)] +pub struct SharedAccountEntry { + pub group_label: String, + pub identifier: Identifier, + pub account: Account, +} + #[derive(Clone, Debug, Serialize, Deserialize)] pub struct NSSAUserData { /// Default public accounts. @@ -37,11 +46,12 @@ pub struct NSSAUserData { #[serde(default)] pub group_key_holders: BTreeMap, /// Cached plaintext state of shared accounts (PDAs and regular shared accounts), - /// keyed by `AccountId`. Updated after each transaction by decrypting the circuit output. - /// The sequencer only stores encrypted commitments, so this local cache is the - /// only source of plaintext state for these accounts. - #[serde(default, alias = "group_pda_accounts", alias = "pda_accounts")] - pub shared_accounts: BTreeMap, + /// keyed by `AccountId`. Each entry stores the group label and identifier needed + /// to re-derive keys during sync. + /// Old wallet files with `pda_accounts` (plain Account values) are incompatible with + /// this type. The `default` attribute ensures they deserialize as empty rather than failing. + #[serde(default)] + pub shared_accounts: BTreeMap, } impl NSSAUserData { diff --git a/wallet/src/cli/account.rs b/wallet/src/cli/account.rs index b5e80854..1355eb69 100644 --- a/wallet/src/cli/account.rs +++ b/wallet/src/cli/account.rs @@ -83,14 +83,27 @@ pub enum NewSubcommand { label: Option, }, /// Single-account convenience: creates a key node and auto-registers one account with a random - /// identifier. + /// identifier. When `--for-gms` is provided, derives keys from the named group instead of + /// the wallet's key tree. Private { #[arg(long)] - /// Chain index of a parent node. + /// Chain index of a parent node (ignored when --for-gms is used). cci: Option, #[arg(short, long)] /// Label to assign to the new account. label: Option, + #[arg(long)] + /// Derive keys from a group's GMS instead of the wallet tree. + for_gms: Option, + #[arg(long, requires = "for_gms")] + /// Create a PDA account (requires --seed and --program-id). + pda: bool, + #[arg(long, requires = "pda")] + /// PDA seed as 64-character hex string. + seed: Option, + #[arg(long, requires = "pda")] + /// Program ID as hex string. + program_id: Option, }, /// Recommended for receiving from multiple senders: creates a key node (npk + vpk) without /// registering any account. @@ -144,7 +157,14 @@ impl WalletSubcommand for NewSubcommand { Ok(SubcommandReturnValue::RegisterAccount { account_id }) } - Self::Private { cci, label } => { + Self::Private { + cci, + label, + for_gms, + pda, + seed, + program_id, + } => { if let Some(label) = &label && wallet_core .storage @@ -155,36 +175,132 @@ impl WalletSubcommand for NewSubcommand { anyhow::bail!("Label '{label}' is already in use by another account"); } - let (account_id, chain_index) = wallet_core.create_new_account_private(cci); + if let Some(group_name) = for_gms { + // GMS-derived account + let holder = wallet_core + .storage() + .user_data + .group_key_holder(&group_name) + .context(format!("Group '{group_name}' not found"))?; - let node = wallet_core - .storage - .user_data - .private_key_tree - .key_map - .get(&chain_index) - .expect("Node was just inserted"); - let key = &node.value.0; + if pda { + // PDA shared account + let seed_hex = seed.context("--seed is required for PDA accounts")?; + let pid_hex = + program_id.context("--program-id is required for PDA accounts")?; - if let Some(label) = label { - wallet_core + let seed_bytes: [u8; 32] = hex::decode(&seed_hex) + .context("Invalid seed hex")? + .try_into() + .map_err(|_err| anyhow::anyhow!("Seed must be exactly 32 bytes"))?; + let pda_seed = nssa_core::program::PdaSeed::new(seed_bytes); + + let pid_bytes = hex::decode(&pid_hex).context("Invalid program ID hex")?; + if pid_bytes.len() != 32 { + anyhow::bail!("Program ID must be exactly 32 bytes"); + } + let mut pid: nssa_core::program::ProgramId = [0; 8]; + for (i, chunk) in pid_bytes.chunks_exact(4).enumerate() { + pid[i] = u32::from_le_bytes(chunk.try_into().unwrap()); + } + + let keys = holder.derive_keys_for_pda(&pda_seed); + let npk = keys.generate_nullifier_public_key(); + let vpk = keys.generate_viewing_public_key(); + let account_id = nssa::AccountId::for_private_pda(&pid, &pda_seed, &npk); + + if let Some(label) = label { + wallet_core + .storage + .labels + .insert(account_id.to_string(), Label::new(label)); + } + + wallet_core.register_shared_account( + account_id, + group_name.clone(), + u128::MAX, + ); + + println!("PDA shared account from group '{group_name}'"); + println!("AccountId: {account_id}"); + println!("NPK: {}", hex::encode(npk.0)); + println!("VPK: {}", hex::encode(&vpk.0)); + + wallet_core.store_persistent_data().await?; + Ok(SubcommandReturnValue::RegisterAccount { account_id }) + } else { + // Regular shared account. The tag is derived deterministically + // from the identifier so that keys can be re-derived without + // storing the tag separately. + let identifier: nssa_core::Identifier = rand::random(); + let tag = { + use sha2::Digest as _; + let mut hasher = sha2::Sha256::new(); + hasher.update(b"/LEE/v0.3/SharedAccountTag/\x00\x00\x00\x00\x00"); + hasher.update(identifier.to_le_bytes()); + let result: [u8; 32] = hasher.finalize().into(); + result + }; + + let keys = holder.derive_keys_for_shared_account(&tag); + let npk = keys.generate_nullifier_public_key(); + let vpk = keys.generate_viewing_public_key(); + let account_id = nssa::AccountId::from((&npk, identifier)); + + if let Some(label) = label { + wallet_core + .storage + .labels + .insert(account_id.to_string(), Label::new(label)); + } + + wallet_core.register_shared_account( + account_id, + group_name.clone(), + identifier, + ); + + println!("Shared account from group '{group_name}'"); + println!("AccountId: Private/{account_id}"); + println!("NPK: {}", hex::encode(npk.0)); + println!("VPK: {}", hex::encode(&vpk.0)); + + wallet_core.store_persistent_data().await?; + Ok(SubcommandReturnValue::RegisterAccount { account_id }) + } + } else { + // Standard wallet-tree-derived account + let (account_id, chain_index) = wallet_core.create_new_account_private(cci); + + let node = wallet_core .storage - .labels - .insert(account_id.to_string(), Label::new(label)); + .user_data + .private_key_tree + .key_map + .get(&chain_index) + .expect("Node was just inserted"); + let key = &node.value.0; + + if let Some(label) = label { + wallet_core + .storage + .labels + .insert(account_id.to_string(), Label::new(label)); + } + + println!( + "Generated new account with account_id Private/{account_id} at path {chain_index}" + ); + println!("With npk {}", hex::encode(key.nullifier_public_key.0)); + println!( + "With vpk {}", + hex::encode(key.viewing_public_key.to_bytes()) + ); + + wallet_core.store_persistent_data().await?; + Ok(SubcommandReturnValue::RegisterAccount { account_id }) } - - println!( - "Generated new account with account_id Private/{account_id} at path {chain_index}" - ); - println!("With npk {}", hex::encode(key.nullifier_public_key.0)); - println!( - "With vpk {}", - hex::encode(key.viewing_public_key.to_bytes()) - ); - - wallet_core.store_persistent_data().await?; - - Ok(SubcommandReturnValue::RegisterAccount { account_id }) } Self::PrivateAccountsKey { cci } => { let chain_index = wallet_core.create_private_accounts_key(cci); diff --git a/wallet/src/cli/group.rs b/wallet/src/cli/group.rs index 5cdcc0af..0a1d8d54 100644 --- a/wallet/src/cli/group.rs +++ b/wallet/src/cli/group.rs @@ -1,15 +1,13 @@ use anyhow::{Context as _, Result}; use clap::Subcommand; use key_protocol::key_management::group_key_holder::GroupKeyHolder; -use nssa::AccountId; -use nssa_core::program::PdaSeed; use crate::{ WalletCore, cli::{SubcommandReturnValue, WalletSubcommand}, }; -/// Group PDA management commands. +/// Group key management commands. #[derive(Subcommand, Debug, Clone)] pub enum GroupSubcommand { /// Create a new group with a fresh random GMS. @@ -24,29 +22,15 @@ pub enum GroupSubcommand { /// Raw GMS as 64-character hex string. #[arg(long)] gms: String, - /// Epoch (defaults to 0). - #[arg(long, default_value = "0")] - epoch: u32, }, /// Export the raw GMS hex for backup or manual distribution. Export { /// Group name. name: String, }, - /// List all groups with their epochs. + /// List all groups. #[command(visible_alias = "ls")] List, - /// Derive keys for a PDA seed and show the resulting AccountId. - Derive { - /// Group name. - name: String, - /// PDA seed as 64-character hex string. - #[arg(long)] - seed: String, - /// Program ID as hex string (u32x8 little-endian). - #[arg(long)] - program_id: String, - }, /// Remove a group from the wallet. Remove { /// Group name. @@ -56,9 +40,9 @@ pub enum GroupSubcommand { Invite { /// Group name. name: String, - /// Recipient's viewing public key as hex string. + /// Recipient's sealing public key as hex string. #[arg(long)] - vpk: String, + key: String, }, /// Unseal a received GMS and store it (join a group). Join { @@ -67,15 +51,10 @@ pub enum GroupSubcommand { /// Sealed GMS as hex string (from the inviter). #[arg(long)] sealed: String, - /// Account label or Private/ whose VSK to use for decryption. + /// Account ID whose viewing secret key to use for decryption. #[arg(long)] account: String, }, - /// Ratchet the GMS to exclude removed members. - Ratchet { - /// Group name. - name: String, - }, } impl WalletSubcommand for GroupSubcommand { @@ -88,28 +67,25 @@ impl WalletSubcommand for GroupSubcommand { if wallet_core .storage() .user_data - .get_group_key_holder(&name) + .group_key_holder(&name) .is_some() { anyhow::bail!("Group '{name}' already exists"); } let holder = GroupKeyHolder::new(); - wallet_core - .storage_mut() - .user_data - .insert_group_key_holder(name.clone(), holder); + wallet_core.insert_group_key_holder(name.clone(), holder); wallet_core.store_persistent_data().await?; - println!("Created group '{name}' at epoch 0"); + println!("Created group '{name}'"); Ok(SubcommandReturnValue::Empty) } - Self::Import { name, gms, epoch } => { + Self::Import { name, gms } => { if wallet_core .storage() .user_data - .get_group_key_holder(&name) + .group_key_holder(&name) .is_some() { anyhow::bail!("Group '{name}' already exists"); @@ -118,16 +94,13 @@ impl WalletSubcommand for GroupSubcommand { let gms_bytes: [u8; 32] = hex::decode(&gms) .context("Invalid GMS hex")? .try_into() - .map_err(|_| anyhow::anyhow!("GMS must be exactly 32 bytes"))?; + .map_err(|_err| anyhow::anyhow!("GMS must be exactly 32 bytes"))?; - let holder = GroupKeyHolder::from_gms_and_epoch(gms_bytes, epoch); - wallet_core - .storage_mut() - .user_data - .insert_group_key_holder(name.clone(), holder); + let holder = GroupKeyHolder::from_gms(gms_bytes); + wallet_core.insert_group_key_holder(name.clone(), holder); wallet_core.store_persistent_data().await?; - println!("Imported group '{name}' at epoch {epoch}"); + println!("Imported group '{name}'"); Ok(SubcommandReturnValue::Empty) } @@ -135,14 +108,12 @@ impl WalletSubcommand for GroupSubcommand { let holder = wallet_core .storage() .user_data - .get_group_key_holder(&name) + .group_key_holder(&name) .context(format!("Group '{name}' not found"))?; let gms_hex = hex::encode(holder.dangerous_raw_gms()); - let epoch = holder.epoch(); println!("Group: {name}"); - println!("Epoch: {epoch}"); println!("GMS: {gms_hex}"); Ok(SubcommandReturnValue::Empty) } @@ -152,60 +123,15 @@ impl WalletSubcommand for GroupSubcommand { if holders.is_empty() { println!("No groups found"); } else { - for (name, holder) in holders { - println!("{name} (epoch {})", holder.epoch()); + for name in holders.keys() { + println!("{name}"); } } Ok(SubcommandReturnValue::Empty) } - Self::Derive { - name, - seed, - program_id, - } => { - let holder = wallet_core - .storage() - .user_data - .get_group_key_holder(&name) - .context(format!("Group '{name}' not found"))?; - - let seed_bytes: [u8; 32] = hex::decode(&seed) - .context("Invalid seed hex")? - .try_into() - .map_err(|_| anyhow::anyhow!("Seed must be exactly 32 bytes"))?; - let pda_seed = PdaSeed::new(seed_bytes); - - let pid_bytes = - hex::decode(&program_id).context("Invalid program ID hex")?; - if pid_bytes.len() != 32 { - anyhow::bail!("Program ID must be exactly 32 bytes"); - } - let mut pid: nssa_core::program::ProgramId = [0; 8]; - for (i, chunk) in pid_bytes.chunks_exact(4).enumerate() { - pid[i] = u32::from_le_bytes(chunk.try_into().unwrap()); - } - - let keys = holder.derive_keys_for_pda(&pda_seed); - let npk = keys.generate_nullifier_public_key(); - let vpk = keys.generate_viewing_public_key(); - let account_id = AccountId::for_private_pda(&pid, &pda_seed, &npk); - - println!("Group: {name}"); - println!("NPK: {}", hex::encode(npk.0)); - println!("VPK: {}", hex::encode(&vpk.0)); - println!("AccountId: {account_id}"); - Ok(SubcommandReturnValue::Empty) - } - Self::Remove { name } => { - if wallet_core - .storage_mut() - .user_data - .group_key_holders - .remove(&name) - .is_none() - { + if wallet_core.remove_group_key_holder(&name).is_none() { anyhow::bail!("Group '{name}' not found"); } @@ -214,18 +140,18 @@ impl WalletSubcommand for GroupSubcommand { Ok(SubcommandReturnValue::Empty) } - Self::Invite { name, vpk } => { + Self::Invite { name, key } => { let holder = wallet_core .storage() .user_data - .get_group_key_holder(&name) + .group_key_holder(&name) .context(format!("Group '{name}' not found"))?; - let vpk_bytes = hex::decode(&vpk).context("Invalid VPK hex")?; - let recipient_vpk = - nssa_core::encryption::shared_key_derivation::Secp256k1Point(vpk_bytes); + let key_bytes = hex::decode(&key).context("Invalid key hex")?; + let recipient_key = + nssa_core::encryption::shared_key_derivation::Secp256k1Point(key_bytes); - let sealed = holder.seal_for(&recipient_vpk); + let sealed = holder.seal_for(&recipient_key); println!("{}", hex::encode(&sealed)); Ok(SubcommandReturnValue::Empty) } @@ -238,7 +164,7 @@ impl WalletSubcommand for GroupSubcommand { if wallet_core .storage() .user_data - .get_group_key_holder(&name) + .group_key_holder(&name) .is_some() { anyhow::bail!("Group '{name}' already exists"); @@ -246,11 +172,8 @@ impl WalletSubcommand for GroupSubcommand { let sealed_bytes = hex::decode(&sealed).context("Invalid sealed hex")?; - // Resolve the account to get the VSK - let account_id: nssa::AccountId = account - .parse() - .context("Invalid account ID (use Private/)")?; - let (keychain, _) = wallet_core + let account_id: nssa::AccountId = account.parse().context("Invalid account ID")?; + let (keychain, _, _) = wallet_core .storage() .user_data .get_private_account(account_id) @@ -260,34 +183,10 @@ impl WalletSubcommand for GroupSubcommand { let holder = GroupKeyHolder::unseal(&sealed_bytes, &vsk) .map_err(|e| anyhow::anyhow!("Failed to unseal: {e:?}"))?; - let epoch = holder.epoch(); - wallet_core - .storage_mut() - .user_data - .insert_group_key_holder(name.clone(), holder); + wallet_core.insert_group_key_holder(name.clone(), holder); wallet_core.store_persistent_data().await?; - println!("Joined group '{name}' at epoch {epoch}"); - Ok(SubcommandReturnValue::Empty) - } - - Self::Ratchet { name } => { - let holder = wallet_core - .storage_mut() - .user_data - .group_key_holders - .get_mut(&name) - .context(format!("Group '{name}' not found"))?; - - let mut salt = [0_u8; 32]; - rand::RngCore::fill_bytes(&mut rand::rngs::OsRng, &mut salt); - holder.ratchet(salt); - - let epoch = holder.epoch(); - wallet_core.store_persistent_data().await?; - - println!("Ratcheted group '{name}' to epoch {epoch}"); - println!("Re-invite remaining members with 'group invite'"); + println!("Joined group '{name}'"); Ok(SubcommandReturnValue::Empty) } } diff --git a/wallet/src/cli/mod.rs b/wallet/src/cli/mod.rs index 1653e938..09cc1799 100644 --- a/wallet/src/cli/mod.rs +++ b/wallet/src/cli/mod.rs @@ -14,6 +14,7 @@ use crate::{ account::AccountSubcommand, chain::ChainSubcommand, config::ConfigSubcommand, + group::GroupSubcommand, programs::{ amm::AmmProgramAgnosticSubcommand, ata::AtaSubcommand, native_token_transfer::AuthTransferSubcommand, pinata::PinataProgramAgnosticSubcommand, @@ -25,6 +26,7 @@ use crate::{ pub mod account; pub mod chain; pub mod config; +pub mod group; pub mod programs; pub(crate) trait WalletSubcommand { @@ -57,6 +59,9 @@ pub enum Command { /// Associated Token Account program interaction subcommand. #[command(subcommand)] Ata(AtaSubcommand), + /// Group key management (create, invite, join, derive keys). + #[command(subcommand)] + Group(GroupSubcommand), /// Check the wallet can connect to the node and builtin local programs /// match the remote versions. CheckHealth, @@ -164,6 +169,7 @@ pub async fn execute_subcommand( Command::Token(token_subcommand) => token_subcommand.handle_subcommand(wallet_core).await?, Command::AMM(amm_subcommand) => amm_subcommand.handle_subcommand(wallet_core).await?, Command::Ata(ata_subcommand) => ata_subcommand.handle_subcommand(wallet_core).await?, + Command::Group(group_subcommand) => group_subcommand.handle_subcommand(wallet_core).await?, Command::Config(config_subcommand) => { config_subcommand.handle_subcommand(wallet_core).await? } diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs index c8244ef9..7a293139 100644 --- a/wallet/src/lib.rs +++ b/wallet/src/lib.rs @@ -287,6 +287,41 @@ impl WalletCore { (account_id, cci) } + /// Insert a group key holder into storage. + pub fn insert_group_key_holder( + &mut self, + name: String, + holder: key_protocol::key_management::group_key_holder::GroupKeyHolder, + ) { + self.storage.user_data.insert_group_key_holder(name, holder); + } + + /// Remove a group key holder from storage. Returns the removed holder if it existed. + pub fn remove_group_key_holder( + &mut self, + name: &str, + ) -> Option { + self.storage.user_data.group_key_holders.remove(name) + } + + /// Register a shared account in storage for sync tracking. + pub fn register_shared_account( + &mut self, + account_id: AccountId, + group_label: String, + identifier: nssa_core::Identifier, + ) { + use key_protocol::key_protocol_core::SharedAccountEntry; + self.storage.user_data.shared_accounts.insert( + account_id, + SharedAccountEntry { + group_label, + identifier, + account: Account::default(), + }, + ); + } + /// Get account balance. pub async fn get_account_balance(&self, acc: AccountId) -> Result { Ok(self.sequencer_client.get_account_balance(acc).await?) diff --git a/wallet/src/privacy_preserving_tx.rs b/wallet/src/privacy_preserving_tx.rs index ba1a6a73..dfac8180 100644 --- a/wallet/src/privacy_preserving_tx.rs +++ b/wallet/src/privacy_preserving_tx.rs @@ -337,7 +337,7 @@ async fn private_pda_preparation( .user_data .shared_accounts .get(&account_id) - .cloned() + .map(|e| e.account.clone()) .unwrap_or_default(); let exists = acc != nssa_core::account::Account::default(); @@ -388,7 +388,7 @@ async fn private_shared_preparation( .user_data .shared_accounts .get(&account_id) - .cloned() + .map(|e| e.account.clone()) .unwrap_or_default(); let exists = acc != nssa_core::account::Account::default(); From d0a88e91e1453cabbcb862549eaa42f44e11ca0c Mon Sep 17 00:00:00 2001 From: Moudy Date: Tue, 5 May 2026 20:03:12 +0200 Subject: [PATCH 03/13] feat: extend sync to scan shared accounts with GMS-derived keys --- key_protocol/src/key_protocol_core/mod.rs | 6 +- wallet/src/cli/account.rs | 2 + wallet/src/lib.rs | 73 +++++++++++++++++++++++ 3 files changed, 80 insertions(+), 1 deletion(-) diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index e17c35a7..7218ebde 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -22,11 +22,15 @@ pub struct UserPrivateAccountData { } /// Metadata for a shared account (GMS-derived), stored alongside the cached plaintext state. -/// The group label and identifier are needed to re-derive keys during sync. +/// The group label and identifier (or PDA seed) are needed to re-derive keys during sync. #[derive(Clone, Debug, Serialize, Deserialize)] pub struct SharedAccountEntry { pub group_label: String, pub identifier: Identifier, + /// For PDA accounts, the seed used to derive keys via `derive_keys_for_pda`. + /// `None` for regular shared accounts (keys derived from identifier via tag). + #[serde(default)] + pub pda_seed: Option, pub account: Account, } diff --git a/wallet/src/cli/account.rs b/wallet/src/cli/account.rs index 1355eb69..3bb7310b 100644 --- a/wallet/src/cli/account.rs +++ b/wallet/src/cli/account.rs @@ -220,6 +220,7 @@ impl WalletSubcommand for NewSubcommand { account_id, group_name.clone(), u128::MAX, + Some(pda_seed), ); println!("PDA shared account from group '{group_name}'"); @@ -259,6 +260,7 @@ impl WalletSubcommand for NewSubcommand { account_id, group_name.clone(), identifier, + None, ); println!("Shared account from group '{group_name}'"); diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs index 7a293139..f179ec44 100644 --- a/wallet/src/lib.rs +++ b/wallet/src/lib.rs @@ -310,6 +310,7 @@ impl WalletCore { account_id: AccountId, group_label: String, identifier: nssa_core::Identifier, + pda_seed: Option, ) { use key_protocol::key_protocol_core::SharedAccountEntry; self.storage.user_data.shared_accounts.insert( @@ -317,6 +318,7 @@ impl WalletCore { SharedAccountEntry { group_label, identifier, + pda_seed, account: Account::default(), }, ); @@ -592,6 +594,77 @@ impl WalletCore { self.storage .insert_private_account_data(affected_account_id, identifier, new_acc); } + + // Scan for updates to shared accounts (GMS-derived). + self.sync_shared_accounts_with_tx(&tx); + } + + fn sync_shared_accounts_with_tx(&mut self, tx: &PrivacyPreservingTransaction) { + let shared_keys: Vec<_> = self + .storage + .user_data + .shared_accounts + .iter() + .filter_map(|(&account_id, entry)| { + let holder = self + .storage + .user_data + .group_key_holders + .get(&entry.group_label)?; + + let keys = entry.pda_seed.as_ref().map_or_else( + || { + let tag = { + use sha2::Digest as _; + let mut hasher = sha2::Sha256::new(); + hasher.update(b"/LEE/v0.3/SharedAccountTag/\x00\x00\x00\x00\x00"); + hasher.update(entry.identifier.to_le_bytes()); + let result: [u8; 32] = hasher.finalize().into(); + result + }; + holder.derive_keys_for_shared_account(&tag) + }, + |pda_seed| holder.derive_keys_for_pda(pda_seed), + ); + let npk = keys.generate_nullifier_public_key(); + let vpk = keys.generate_viewing_public_key(); + let vsk = keys.viewing_secret_key; + Some((account_id, npk, vpk, vsk)) + }) + .collect(); + + for (account_id, npk, vpk, vsk) in shared_keys { + let view_tag = EncryptedAccountData::compute_view_tag(&npk, &vpk); + + for (ciph_id, encrypted_data) in tx + .message() + .encrypted_private_post_states + .iter() + .enumerate() + { + if encrypted_data.view_tag != view_tag { + continue; + } + + let shared_secret = SharedSecretKey::new(&vsk, &encrypted_data.epk); + let commitment = &tx.message.new_commitments[ciph_id]; + + if let Some((_decrypted_identifier, new_acc)) = nssa_core::EncryptionScheme::decrypt( + &encrypted_data.ciphertext, + &shared_secret, + commitment, + ciph_id + .try_into() + .expect("Ciphertext ID is expected to fit in u32"), + ) { + info!("Synced shared account {account_id:#?} with new state {new_acc:#?}"); + if let Some(entry) = self.storage.user_data.shared_accounts.get_mut(&account_id) + { + entry.account = new_acc; + } + } + } + } } #[must_use] From 5bf24b191d0a2be1eaf5607b78e27c6fdd659e1a Mon Sep 17 00:00:00 2001 From: Moudy Date: Wed, 6 May 2026 00:15:05 +0200 Subject: [PATCH 04/13] test: add unit tests for SharedAccountEntry and shared account derivation --- integration_tests/tests/ata.rs | 4 + .../tests/auth_transfer/private.rs | 16 ++++ integration_tests/tests/keys_restoration.rs | 16 ++++ integration_tests/tests/pinata.rs | 8 ++ integration_tests/tests/token.rs | 48 +++++++++++ key_protocol/src/key_protocol_core/mod.rs | 83 +++++++++++++++++++ 6 files changed, 175 insertions(+) diff --git a/integration_tests/tests/ata.rs b/integration_tests/tests/ata.rs index 6f0bf05c..54ef5341 100644 --- a/integration_tests/tests/ata.rs +++ b/integration_tests/tests/ata.rs @@ -44,6 +44,10 @@ async fn new_private_account(ctx: &mut TestContext) -> Result { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), diff --git a/integration_tests/tests/auth_transfer/private.rs b/integration_tests/tests/auth_transfer/private.rs index 8db5f8d4..6f05cdee 100644 --- a/integration_tests/tests/auth_transfer/private.rs +++ b/integration_tests/tests/auth_transfer/private.rs @@ -160,6 +160,10 @@ async fn private_transfer_to_owned_account_using_claiming_path() -> Result<()> { // Create a new private account let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })); @@ -328,6 +332,10 @@ async fn private_transfer_to_owned_account_continuous_run_path() -> Result<()> { // Create a new private account let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })); @@ -393,6 +401,10 @@ async fn initialize_private_account() -> Result<()> { let mut ctx = TestContext::new().await?; let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })); @@ -493,6 +505,10 @@ async fn initialize_private_account_using_label() -> Result<()> { // Create a new private account with a label let label = "init-private-label".to_owned(); let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: Some(label.clone()), })); diff --git a/integration_tests/tests/keys_restoration.rs b/integration_tests/tests/keys_restoration.rs index ff339120..8fae9808 100644 --- a/integration_tests/tests/keys_restoration.rs +++ b/integration_tests/tests/keys_restoration.rs @@ -30,6 +30,10 @@ async fn sync_private_account_with_non_zero_chain_index() -> Result<()> { // Create a new private account let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })); @@ -40,6 +44,10 @@ async fn sync_private_account_with_non_zero_chain_index() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -119,6 +127,10 @@ async fn restore_keys_from_seed() -> Result<()> { // Create first private account at root let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: Some(ChainIndex::root()), label: None, })); @@ -132,6 +144,10 @@ async fn restore_keys_from_seed() -> Result<()> { // Create second private account at /0 let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: Some(ChainIndex::from_str("/0")?), label: None, })); diff --git a/integration_tests/tests/pinata.rs b/integration_tests/tests/pinata.rs index 77c4a646..d4523f94 100644 --- a/integration_tests/tests/pinata.rs +++ b/integration_tests/tests/pinata.rs @@ -85,6 +85,10 @@ async fn claim_pinata_to_uninitialized_private_account_fails_fast() -> Result<() let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -229,6 +233,10 @@ async fn claim_pinata_to_new_private_account() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), diff --git a/integration_tests/tests/token.rs b/integration_tests/tests/token.rs index 6db718f9..93786a57 100644 --- a/integration_tests/tests/token.rs +++ b/integration_tests/tests/token.rs @@ -297,6 +297,10 @@ async fn create_and_transfer_token_with_private_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -313,6 +317,10 @@ async fn create_and_transfer_token_with_private_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -460,6 +468,10 @@ async fn create_token_with_private_definition() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: Some(ChainIndex::root()), label: None, })), @@ -532,6 +544,10 @@ async fn create_token_with_private_definition() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -662,6 +678,10 @@ async fn create_token_with_private_definition_and_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -678,6 +698,10 @@ async fn create_token_with_private_definition_and_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -740,6 +764,10 @@ async fn create_token_with_private_definition_and_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -855,6 +883,10 @@ async fn shielded_token_transfer() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -966,6 +998,10 @@ async fn deshielded_token_transfer() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -1077,6 +1113,10 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -1093,6 +1133,10 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), @@ -1126,6 +1170,10 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { + for_gms: None, + pda: false, + seed: None, + program_id: None, cci: None, label: None, })), diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index 7218ebde..ea8d8405 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -274,6 +274,89 @@ mod tests { fn group_key_holders_default_empty() { let user_data = NSSAUserData::default(); assert!(user_data.group_key_holders.is_empty()); + assert!(user_data.shared_accounts.is_empty()); + } + + #[test] + fn shared_account_entry_serde_round_trip() { + use nssa_core::program::PdaSeed; + + let entry = SharedAccountEntry { + group_label: String::from("test-group"), + identifier: 42, + pda_seed: None, + account: nssa_core::account::Account::default(), + }; + let encoded = bincode::serialize(&entry).expect("serialize"); + let decoded: SharedAccountEntry = bincode::deserialize(&encoded).expect("deserialize"); + assert_eq!(decoded.group_label, "test-group"); + assert_eq!(decoded.identifier, 42); + assert!(decoded.pda_seed.is_none()); + + let pda_entry = SharedAccountEntry { + group_label: String::from("pda-group"), + identifier: u128::MAX, + pda_seed: Some(PdaSeed::new([7_u8; 32])), + account: nssa_core::account::Account::default(), + }; + let pda_encoded = bincode::serialize(&pda_entry).expect("serialize pda"); + let pda_decoded: SharedAccountEntry = + bincode::deserialize(&pda_encoded).expect("deserialize pda"); + assert_eq!(pda_decoded.group_label, "pda-group"); + assert_eq!(pda_decoded.identifier, u128::MAX); + assert_eq!(pda_decoded.pda_seed.unwrap(), PdaSeed::new([7_u8; 32])); + } + + #[test] + fn shared_account_entry_none_pda_seed_round_trips() { + // Verify that an entry with pda_seed=None serializes and deserializes correctly, + // confirming the #[serde(default)] attribute works for backward compatibility. + let entry = SharedAccountEntry { + group_label: String::from("old"), + identifier: 1, + pda_seed: None, + account: nssa_core::account::Account::default(), + }; + let encoded = bincode::serialize(&entry).expect("serialize"); + let decoded: SharedAccountEntry = bincode::deserialize(&encoded).expect("deserialize"); + assert_eq!(decoded.group_label, "old"); + assert_eq!(decoded.identifier, 1); + assert!(decoded.pda_seed.is_none()); + } + + #[test] + fn shared_account_derives_consistent_keys_from_group() { + use nssa_core::program::PdaSeed; + + let mut user_data = NSSAUserData::default(); + let gms_holder = GroupKeyHolder::from_gms([42_u8; 32]); + user_data.insert_group_key_holder(String::from("my-group"), gms_holder); + + let holder = user_data.group_key_holder("my-group").unwrap(); + + // Regular shared account: derive via tag + let tag = [1_u8; 32]; + let keys_a = holder.derive_keys_for_shared_account(&tag); + let keys_b = holder.derive_keys_for_shared_account(&tag); + assert_eq!( + keys_a.generate_nullifier_public_key(), + keys_b.generate_nullifier_public_key(), + ); + + // PDA shared account: derive via seed + let seed = PdaSeed::new([2_u8; 32]); + let pda_keys_a = holder.derive_keys_for_pda(&seed); + let pda_keys_b = holder.derive_keys_for_pda(&seed); + assert_eq!( + pda_keys_a.generate_nullifier_public_key(), + pda_keys_b.generate_nullifier_public_key(), + ); + + // PDA and shared derivations don't collide + assert_ne!( + keys_a.generate_nullifier_public_key(), + pda_keys_a.generate_nullifier_public_key(), + ); } #[test] From f73cd6738f4b234b23e4a18ea506626e81ec8d0e Mon Sep 17 00:00:00 2001 From: Moudy Date: Wed, 6 May 2026 13:11:50 +0200 Subject: [PATCH 05/13] refactor: delegate to auth-transfer, add shared account test --- .../private_pda_spender.bin | Bin 406144 -> 403052 bytes .../privacy_preserving_transaction/circuit.rs | 178 +++++++++++------- .../guest/src/bin/private_pda_spender.rs | 113 +++++------ 3 files changed, 154 insertions(+), 137 deletions(-) diff --git a/artifacts/test_program_methods/private_pda_spender.bin b/artifacts/test_program_methods/private_pda_spender.bin index 70e4c5a0c753b6ae2b6839eed3cb947ce6871220..cc602ee4ec61debe74ecd28f84b0dce80bfcc7bd 100644 GIT binary patch delta 107574 zcma%k3tUu1`~R8Q8w-fwf?VXXy9W>vQS*YS=^_{JX=QgU3@|NIQYbBHN##tD=SSa-(D;1XT4Si|L@E>3uwK+-+w=!vvX$VnP;AP?lb2s zxW9?IbTq0mmL7O*S$s@j@h-d4TTztYP0NNnG{`lPD&jJsMF~|Dg2FWgZF8LR+O|wl 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2]>::try_from(pre_states.clone()) else { + panic!("expected exactly 2 pre_states for withdraw: [pda, recipient]"); + }; - if is_deposit { - // Deposit: claim PDA, transfer balance from counterparty to PDA. - // Both accounts must be owned by this program (or uninitialized) for - // validate_execution to allow balance changes. - assert!( - counterparty_pre.is_authorized, - "Counterparty must be authorized to deposit" - ); + // Post-states stay unchanged in this program. The actual balance transfer + // happens in the chained call to authenticated_transfer. + let pda_post = AccountPostState::new(pda_pre.account.clone()); + let recipient_post = AccountPostState::new(recipient_pre.account.clone()); - let mut pda_account = pda_pre.account; - let mut counterparty_account = counterparty_pre.account; - - pda_account.balance = pda_account - .balance - .checked_add(amount) - .expect("PDA balance overflow"); - counterparty_account.balance = counterparty_account - .balance - .checked_sub(amount) - .expect("Counterparty has insufficient balance"); - - let pda_post = AccountPostState::new_claimed_if_default(pda_account, Claim::Pda(pda_seed)); - let counterparty_post = AccountPostState::new(counterparty_account); + // Chain to authenticated_transfer with pda_seeds to authorize the PDA. + // The circuit's resolve_authorization_and_record_bindings establishes the + // mask-3 (seed, npk) binding when pda_seeds match the private PDA derivation. + let mut auth_pda_pre = pda_pre; + auth_pda_pre.is_authorized = true; + let auth_call = + ChainedCall::new(auth_transfer_id, vec![auth_pda_pre, recipient_pre], &amount) + .with_pda_seeds(vec![pda_seed]); ProgramOutput::new( self_program_id, caller_program_id, instruction_words, pre_states, - vec![pda_post, counterparty_post], + vec![pda_post, recipient_post], ) + .with_chained_calls(vec![auth_call]) .write(); } else { - // Spend: decrease PDA balance (owned by this program), increase counterparty. - // Chain to noop with pda_seeds to establish the mask-3 binding for the - // existing PDA. The noop's pre_states must match our post_states. - // Authorization is enforced by the circuit's binding check, not here. + // Init: initialize the PDA under authenticated_transfer's ownership. + let Ok([pda_pre]) = <[_; 1]>::try_from(pre_states.clone()) else { + panic!("expected exactly 1 pre_state for init: [pda]"); + }; - let mut pda_account = pda_pre.account.clone(); - let mut counterparty_account = counterparty_pre.account.clone(); + let pda_post = AccountPostState::new(pda_pre.account.clone()); - pda_account.balance = pda_account - .balance - .checked_sub(amount) - .expect("PDA has insufficient balance"); - counterparty_account.balance = counterparty_account - .balance - .checked_add(amount) - .expect("Counterparty balance overflow"); - - let pda_post = AccountPostState::new(pda_account.clone()); - let counterparty_post = AccountPostState::new(counterparty_account.clone()); - - // Chain to noop solely to establish the mask-3 binding via pda_seeds. - let mut noop_pda_pre = pda_pre; - noop_pda_pre.account = pda_account; - noop_pda_pre.is_authorized = true; - - let mut noop_counterparty_pre = counterparty_pre; - noop_counterparty_pre.account = counterparty_account; - - let noop_call = ChainedCall::new(noop_id, vec![noop_pda_pre, noop_counterparty_pre], &()) + // Chain to authenticated_transfer with instruction=0 (init path) and pda_seeds + // to authorize the PDA. authenticated_transfer will claim it with Claim::Authorized. + let mut auth_pda_pre = pda_pre; + auth_pda_pre.is_authorized = true; + let auth_call = ChainedCall::new(auth_transfer_id, vec![auth_pda_pre], &0_u128) .with_pda_seeds(vec![pda_seed]); ProgramOutput::new( @@ -110,9 +89,9 @@ fn main() { caller_program_id, instruction_words, pre_states, - vec![pda_post, counterparty_post], + vec![pda_post], ) - .with_chained_calls(vec![noop_call]) + .with_chained_calls(vec![auth_call]) .write(); } } From 69b81ea6217a5bc03875c76cdb7fd8ddfc325a60 Mon Sep 17 00:00:00 2001 From: Moudy Date: Thu, 7 May 2026 17:35:51 +0200 Subject: [PATCH 06/13] fix: address review feedback, persist group data in wallet storage --- integration_tests/tests/shared_accounts.rs | 210 ++++++++++++++++++ .../src/key_management/group_key_holder.rs | 89 ++++---- key_protocol/src/key_protocol_core/mod.rs | 19 +- wallet/src/cli/account.rs | 92 ++------ wallet/src/config.rs | 12 + wallet/src/helperfunctions.rs | 2 + wallet/src/lib.rs | 117 ++++++++-- wallet/src/privacy_preserving_tx.rs | 4 +- 8 files changed, 411 insertions(+), 134 deletions(-) create mode 100644 integration_tests/tests/shared_accounts.rs diff --git a/integration_tests/tests/shared_accounts.rs b/integration_tests/tests/shared_accounts.rs new file mode 100644 index 00000000..b91502d1 --- /dev/null +++ b/integration_tests/tests/shared_accounts.rs @@ -0,0 +1,210 @@ +#![expect( + clippy::tests_outside_test_module, + reason = "Integration test file, not inside a #[cfg(test)] module" +)] + +//! Shared account integration tests. +//! +//! Demonstrates: +//! 1. Group creation and GMS distribution via seal/unseal. +//! 2. Shared regular private account creation via `--for-gms`. +//! 3. Funding a shared account from a public account. +//! 4. Syncing discovers the funded shared account state. + +use std::time::Duration; + +use anyhow::{Context as _, Result}; +use integration_tests::{TIME_TO_WAIT_FOR_BLOCK_SECONDS, TestContext, format_public_account_id}; +use log::info; +use tokio::test; +use wallet::cli::{ + Command, SubcommandReturnValue, + account::{AccountSubcommand, NewSubcommand}, + group::GroupSubcommand, + programs::native_token_transfer::AuthTransferSubcommand, +}; + +/// Create a group, create a shared account from it, and verify registration. +#[test] +async fn group_create_and_shared_account_registration() -> Result<()> { + let mut ctx = TestContext::new().await?; + + // Create a group + let command = Command::Group(GroupSubcommand::New { + name: "test-group".to_string(), + }); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + // Verify group exists + assert!( + ctx.wallet() + .storage() + .user_data + .group_key_holder("test-group") + .is_some() + ); + + // Create a shared regular private account from the group + let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + cci: None, + label: Some("shared-acc".to_string()), + for_gms: Some("test-group".to_string()), + pda: false, + seed: None, + program_id: None, + })); + + let result = wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + let SubcommandReturnValue::RegisterAccount { + account_id: shared_account_id, + } = result + else { + anyhow::bail!("Expected RegisterAccount return value"); + }; + + // Verify shared account is registered in storage + let shared_private_accounts = &ctx.wallet().storage().user_data.shared_private_accounts; + let entry = shared_private_accounts + .get(&shared_account_id) + .context("Shared account not found in storage")?; + assert_eq!(entry.group_label, "test-group"); + assert!(entry.pda_seed.is_none()); + + info!("Shared account registered: {shared_account_id}"); + Ok(()) +} + +/// GMS seal/unseal round-trip: export GMS, re-import under a new name, verify key agreement. +#[test] +async fn group_export_import_key_agreement() -> Result<()> { + let mut ctx = TestContext::new().await?; + + // Create a group + let command = Command::Group(GroupSubcommand::New { + name: "alice-group".to_string(), + }); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + // Export the GMS + let holder = ctx + .wallet() + .storage() + .user_data + .group_key_holder("alice-group") + .context("Group not found")?; + let gms_hex = hex::encode(holder.dangerous_raw_gms()); + + // Import under a different name (simulating Bob receiving the GMS) + let command = Command::Group(GroupSubcommand::Import { + name: "bob-copy".to_string(), + gms: gms_hex, + }); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + // Both derive the same keys for the same tag + let alice_holder = ctx + .wallet() + .storage() + .user_data + .group_key_holder("alice-group") + .unwrap(); + let bob_holder = ctx + .wallet() + .storage() + .user_data + .group_key_holder("bob-copy") + .unwrap(); + + let tag = [42_u8; 32]; + let alice_npk = alice_holder + .derive_keys_for_shared_account(&tag) + .generate_nullifier_public_key(); + let bob_npk = bob_holder + .derive_keys_for_shared_account(&tag) + .generate_nullifier_public_key(); + + assert_eq!( + alice_npk, bob_npk, + "Key agreement: same GMS produces same keys" + ); + + info!("Key agreement verified"); + Ok(()) +} + +/// Fund a shared account from a public account via auth-transfer, then sync. +#[test] +async fn fund_shared_account_from_public() -> Result<()> { + let mut ctx = TestContext::new().await?; + + // Create group and shared account + let command = Command::Group(GroupSubcommand::New { + name: "fund-group".to_string(), + }); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { + cci: None, + label: None, + for_gms: Some("fund-group".to_string()), + pda: false, + seed: None, + program_id: None, + })); + let result = wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + let SubcommandReturnValue::RegisterAccount { + account_id: shared_id, + } = result + else { + anyhow::bail!("Expected RegisterAccount return value"); + }; + + // Initialize the shared account under auth-transfer + let command = Command::AuthTransfer(AuthTransferSubcommand::Init { + account_id: Some(format!("Private/{shared_id}")), + account_label: None, + }); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + tokio::time::sleep(Duration::from_secs(TIME_TO_WAIT_FOR_BLOCK_SECONDS)).await; + + // Fund from a public account + let from_public = ctx.existing_public_accounts()[0]; + let command = Command::AuthTransfer(AuthTransferSubcommand::Send { + from: Some(format_public_account_id(from_public)), + from_label: None, + to: Some(format!("Private/{shared_id}")), + to_label: None, + to_npk: None, + to_vpk: None, + to_identifier: None, + amount: 100, + }); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + tokio::time::sleep(Duration::from_secs(TIME_TO_WAIT_FOR_BLOCK_SECONDS)).await; + + // Sync private accounts + let command = Command::Account(AccountSubcommand::SyncPrivate); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + + // Verify the shared account was updated + let entry = ctx + .wallet() + .storage() + .user_data + .shared_private_accounts + .get(&shared_id) + .context("Shared account not found after sync")?; + + info!( + "Shared account balance after funding: {}", + entry.account.balance + ); + assert_eq!( + entry.account.balance, 100, + "Shared account should have received 100" + ); + + Ok(()) +} diff --git a/key_protocol/src/key_management/group_key_holder.rs b/key_protocol/src/key_management/group_key_holder.rs index e6634f88..533906a1 100644 --- a/key_protocol/src/key_management/group_key_holder.rs +++ b/key_protocol/src/key_management/group_key_holder.rs @@ -2,7 +2,7 @@ use aes_gcm::{Aes256Gcm, KeyInit as _, aead::Aead as _}; use nssa_core::{ SharedSecretKey, encryption::{Scalar, shared_key_derivation::Secp256k1Point}, - program::PdaSeed, + program::{PdaSeed, ProgramId}, }; use rand::{RngCore as _, rngs::OsRng}; use serde::{Deserialize, Serialize}; @@ -83,40 +83,51 @@ impl GroupKeyHolder { /// Derive a per-PDA [`SecretSpendingKey`] by mixing the seed into the SHA-256 input. /// - /// Each distinct `pda_seed` produces a distinct SSK in the full 256-bit space, so - /// adversarial seed-grinding cannot collide two PDAs' derived keys under the same + /// Each distinct `(program_id, pda_seed)` pair produces a distinct SSK in the full 256-bit + /// space, so adversarial seed-grinding cannot collide two PDAs' derived keys under the same /// group. Uses the codebase's 32-byte protocol-versioned domain-separation convention. - fn secret_spending_key_for_pda(&self, pda_seed: &PdaSeed) -> SecretSpendingKey { + fn secret_spending_key_for_pda( + &self, + program_id: &ProgramId, + pda_seed: &PdaSeed, + ) -> SecretSpendingKey { const PREFIX: &[u8; 32] = b"/LEE/v0.3/GroupKeyDerivation/SSK"; let mut hasher = sha2::Sha256::new(); hasher.update(PREFIX); hasher.update(self.gms); + for word in program_id { + hasher.update(word.to_le_bytes()); + } hasher.update(pda_seed.as_ref()); SecretSpendingKey(hasher.finalize_fixed().into()) } - /// Derive keys for a specific PDA. + /// Derive keys for a specific PDA under a given program. /// /// All controllers holding the same GMS independently derive the same keys for the - /// same PDA because the derivation is deterministic in (GMS, seed). + /// same `(program_id, seed)` because the derivation is deterministic. #[must_use] - pub fn derive_keys_for_pda(&self, pda_seed: &PdaSeed) -> PrivateKeyHolder { - self.secret_spending_key_for_pda(pda_seed) + pub fn derive_keys_for_pda( + &self, + program_id: &ProgramId, + pda_seed: &PdaSeed, + ) -> PrivateKeyHolder { + self.secret_spending_key_for_pda(program_id, pda_seed) .produce_private_key_holder(None) } /// Derive keys for a shared regular (non-PDA) private account. /// /// Uses a distinct domain separator from `derive_keys_for_pda` to prevent cross-domain - /// key collisions. The `tag` should be a stable, unique 32-byte value (e.g. derived from - /// a random identifier at account creation time). + /// key collisions. The `derivation_seed` should be a stable, unique 32-byte value + /// (e.g. derived deterministically from the account's identifier). #[must_use] - pub fn derive_keys_for_shared_account(&self, tag: &[u8; 32]) -> PrivateKeyHolder { + pub fn derive_keys_for_shared_account(&self, derivation_seed: &[u8; 32]) -> PrivateKeyHolder { const PREFIX: &[u8; 32] = b"/LEE/v0.3/GroupKeyDerivation/SHA"; let mut hasher = sha2::Sha256::new(); hasher.update(PREFIX); hasher.update(self.gms); - hasher.update(tag); + hasher.update(derivation_seed); SecretSpendingKey(hasher.finalize_fixed().into()).produce_private_key_holder(None) } @@ -210,6 +221,8 @@ mod tests { use super::*; + const TEST_PROGRAM_ID: ProgramId = [9; 8]; + /// Two holders from the same GMS derive identical keys for the same PDA seed. #[test] fn same_gms_same_seed_produces_same_keys() { @@ -218,8 +231,8 @@ mod tests { let holder_b = GroupKeyHolder::from_gms(gms); let seed = PdaSeed::new([1; 32]); - let keys_a = holder_a.derive_keys_for_pda(&seed); - let keys_b = holder_b.derive_keys_for_pda(&seed); + let keys_a = holder_a.derive_keys_for_pda(&TEST_PROGRAM_ID, &seed); + let keys_b = holder_b.derive_keys_for_pda(&TEST_PROGRAM_ID, &seed); assert_eq!( keys_a.generate_nullifier_public_key().to_byte_array(), @@ -235,10 +248,10 @@ mod tests { let seed_b = PdaSeed::new([2; 32]); let npk_a = holder - .derive_keys_for_pda(&seed_a) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed_a) .generate_nullifier_public_key(); let npk_b = holder - .derive_keys_for_pda(&seed_b) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed_b) .generate_nullifier_public_key(); assert_ne!(npk_a.to_byte_array(), npk_b.to_byte_array()); @@ -252,10 +265,10 @@ mod tests { let seed = PdaSeed::new([1; 32]); let npk_a = holder_a - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); let npk_b = holder_b - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); assert_ne!(npk_a.to_byte_array(), npk_b.to_byte_array()); @@ -269,10 +282,10 @@ mod tests { let seed = PdaSeed::new([1; 32]); let npk_original = original - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); let npk_restored = restored - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); assert_eq!(npk_original.to_byte_array(), npk_restored.to_byte_array()); @@ -284,7 +297,7 @@ mod tests { let holder = GroupKeyHolder::from_gms([42_u8; 32]); let seed = PdaSeed::new([1; 32]); let npk = holder - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); assert_ne!(npk, NullifierPublicKey([0; 32])); @@ -304,7 +317,7 @@ mod tests { let holder = GroupKeyHolder::from_gms(gms); let npk = holder - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); let account_id = AccountId::for_private_pda(&program_id, &seed, &npk); @@ -333,10 +346,10 @@ mod tests { let seed = PdaSeed::new([1; 32]); let npk_original = original - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); let npk_restored = restored - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); assert_eq!(npk_original, npk_restored); @@ -354,7 +367,7 @@ mod tests { let seed = PdaSeed::new([5; 32]); let group_npk = GroupKeyHolder::from_gms(shared_bytes) - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(); let personal_npk = SecretSpendingKey(shared_bytes) @@ -382,10 +395,10 @@ mod tests { let seed = PdaSeed::new([1; 32]); assert_eq!( holder - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(), restored - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key(), ); } @@ -468,7 +481,7 @@ mod tests { .iter() .map(|gms| { GroupKeyHolder::from_gms(*gms) - .derive_keys_for_pda(&seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &seed) .generate_nullifier_public_key() }) .collect(); @@ -493,7 +506,7 @@ mod tests { let program_id: nssa_core::program::ProgramId = [1; 8]; // Derive Alice's keys - let alice_keys = alice_holder.derive_keys_for_pda(&pda_seed); + let alice_keys = alice_holder.derive_keys_for_pda(&TEST_PROGRAM_ID, &pda_seed); let alice_npk = alice_keys.generate_nullifier_public_key(); // Seal GMS for Bob using Bob's viewing key, Bob unseals @@ -508,7 +521,7 @@ mod tests { // Key agreement: both derive identical NPK and AccountId let bob_npk = bob_holder - .derive_keys_for_pda(&pda_seed) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &pda_seed) .generate_nullifier_public_key(); assert_eq!(alice_npk, bob_npk); @@ -517,27 +530,27 @@ mod tests { assert_eq!(alice_account_id, bob_account_id); } - /// Same GMS + same tag produces same keys for shared accounts. + /// Same GMS + same derivation seed produces same keys for shared accounts. #[test] - fn shared_account_same_gms_same_tag_produces_same_keys() { + fn shared_account_same_gms_same_seed_produces_same_keys() { let gms = [42_u8; 32]; - let tag = [1_u8; 32]; + let derivation_seed = [1_u8; 32]; let holder_a = GroupKeyHolder::from_gms(gms); let holder_b = GroupKeyHolder::from_gms(gms); let npk_a = holder_a - .derive_keys_for_shared_account(&tag) + .derive_keys_for_shared_account(&derivation_seed) .generate_nullifier_public_key(); let npk_b = holder_b - .derive_keys_for_shared_account(&tag) + .derive_keys_for_shared_account(&derivation_seed) .generate_nullifier_public_key(); assert_eq!(npk_a, npk_b); } - /// Different tags produce different keys for shared accounts. + /// Different derivation seeds produce different keys for shared accounts. #[test] - fn shared_account_different_tags_produce_different_keys() { + fn shared_account_different_seeds_produce_different_keys() { let holder = GroupKeyHolder::from_gms([42_u8; 32]); let npk_a = holder .derive_keys_for_shared_account(&[1_u8; 32]) @@ -556,7 +569,7 @@ mod tests { let bytes = [1_u8; 32]; let pda_npk = holder - .derive_keys_for_pda(&PdaSeed::new(bytes)) + .derive_keys_for_pda(&TEST_PROGRAM_ID, &PdaSeed::new(bytes)) .generate_nullifier_public_key(); let shared_npk = holder .derive_keys_for_shared_account(&bytes) diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index ea8d8405..a18c1d3a 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -27,10 +27,12 @@ pub struct UserPrivateAccountData { pub struct SharedAccountEntry { pub group_label: String, pub identifier: Identifier, - /// For PDA accounts, the seed used to derive keys via `derive_keys_for_pda`. - /// `None` for regular shared accounts (keys derived from identifier via tag). + /// For PDA accounts, the seed and program ID used to derive keys via `derive_keys_for_pda`. + /// `None` for regular shared accounts (keys derived from identifier via derivation seed). #[serde(default)] pub pda_seed: Option, + #[serde(default)] + pub pda_program_id: Option, pub account: Account, } @@ -55,7 +57,7 @@ pub struct NSSAUserData { /// Old wallet files with `pda_accounts` (plain Account values) are incompatible with /// this type. The `default` attribute ensures they deserialize as empty rather than failing. #[serde(default)] - pub shared_accounts: BTreeMap, + pub shared_private_accounts: BTreeMap, } impl NSSAUserData { @@ -115,7 +117,7 @@ impl NSSAUserData { public_key_tree, private_key_tree, group_key_holders: BTreeMap::new(), - shared_accounts: BTreeMap::new(), + shared_private_accounts: BTreeMap::new(), }) } @@ -274,7 +276,7 @@ mod tests { fn group_key_holders_default_empty() { let user_data = NSSAUserData::default(); assert!(user_data.group_key_holders.is_empty()); - assert!(user_data.shared_accounts.is_empty()); + assert!(user_data.shared_private_accounts.is_empty()); } #[test] @@ -285,6 +287,7 @@ mod tests { group_label: String::from("test-group"), identifier: 42, pda_seed: None, + pda_program_id: None, account: nssa_core::account::Account::default(), }; let encoded = bincode::serialize(&entry).expect("serialize"); @@ -297,6 +300,7 @@ mod tests { group_label: String::from("pda-group"), identifier: u128::MAX, pda_seed: Some(PdaSeed::new([7_u8; 32])), + pda_program_id: Some([9; 8]), account: nssa_core::account::Account::default(), }; let pda_encoded = bincode::serialize(&pda_entry).expect("serialize pda"); @@ -315,6 +319,7 @@ mod tests { group_label: String::from("old"), identifier: 1, pda_seed: None, + pda_program_id: None, account: nssa_core::account::Account::default(), }; let encoded = bincode::serialize(&entry).expect("serialize"); @@ -345,8 +350,8 @@ mod tests { // PDA shared account: derive via seed let seed = PdaSeed::new([2_u8; 32]); - let pda_keys_a = holder.derive_keys_for_pda(&seed); - let pda_keys_b = holder.derive_keys_for_pda(&seed); + let pda_keys_a = holder.derive_keys_for_pda(&[9; 8], &seed); + let pda_keys_b = holder.derive_keys_for_pda(&[9; 8], &seed); assert_eq!( pda_keys_a.generate_nullifier_public_key(), pda_keys_b.generate_nullifier_public_key(), diff --git a/wallet/src/cli/account.rs b/wallet/src/cli/account.rs index 3bb7310b..cfb1c8e4 100644 --- a/wallet/src/cli/account.rs +++ b/wallet/src/cli/account.rs @@ -176,15 +176,7 @@ impl WalletSubcommand for NewSubcommand { } if let Some(group_name) = for_gms { - // GMS-derived account - let holder = wallet_core - .storage() - .user_data - .group_key_holder(&group_name) - .context(format!("Group '{group_name}' not found"))?; - - if pda { - // PDA shared account + let info = if pda { let seed_hex = seed.context("--seed is required for PDA accounts")?; let pid_hex = program_id.context("--program-id is required for PDA accounts")?; @@ -204,73 +196,27 @@ impl WalletSubcommand for NewSubcommand { pid[i] = u32::from_le_bytes(chunk.try_into().unwrap()); } - let keys = holder.derive_keys_for_pda(&pda_seed); - let npk = keys.generate_nullifier_public_key(); - let vpk = keys.generate_viewing_public_key(); - let account_id = nssa::AccountId::for_private_pda(&pid, &pda_seed, &npk); - - if let Some(label) = label { - wallet_core - .storage - .labels - .insert(account_id.to_string(), Label::new(label)); - } - - wallet_core.register_shared_account( - account_id, - group_name.clone(), - u128::MAX, - Some(pda_seed), - ); - - println!("PDA shared account from group '{group_name}'"); - println!("AccountId: {account_id}"); - println!("NPK: {}", hex::encode(npk.0)); - println!("VPK: {}", hex::encode(&vpk.0)); - - wallet_core.store_persistent_data().await?; - Ok(SubcommandReturnValue::RegisterAccount { account_id }) + wallet_core.create_shared_pda_account(&group_name, pda_seed, pid)? } else { - // Regular shared account. The tag is derived deterministically - // from the identifier so that keys can be re-derived without - // storing the tag separately. - let identifier: nssa_core::Identifier = rand::random(); - let tag = { - use sha2::Digest as _; - let mut hasher = sha2::Sha256::new(); - hasher.update(b"/LEE/v0.3/SharedAccountTag/\x00\x00\x00\x00\x00"); - hasher.update(identifier.to_le_bytes()); - let result: [u8; 32] = hasher.finalize().into(); - result - }; + wallet_core.create_shared_regular_account(&group_name)? + }; - let keys = holder.derive_keys_for_shared_account(&tag); - let npk = keys.generate_nullifier_public_key(); - let vpk = keys.generate_viewing_public_key(); - let account_id = nssa::AccountId::from((&npk, identifier)); - - if let Some(label) = label { - wallet_core - .storage - .labels - .insert(account_id.to_string(), Label::new(label)); - } - - wallet_core.register_shared_account( - account_id, - group_name.clone(), - identifier, - None, - ); - - println!("Shared account from group '{group_name}'"); - println!("AccountId: Private/{account_id}"); - println!("NPK: {}", hex::encode(npk.0)); - println!("VPK: {}", hex::encode(&vpk.0)); - - wallet_core.store_persistent_data().await?; - Ok(SubcommandReturnValue::RegisterAccount { account_id }) + if let Some(label) = label { + wallet_core + .storage + .labels + .insert(info.account_id.to_string(), Label::new(label)); } + + println!("Shared account from group '{group_name}'"); + println!("AccountId: Private/{}", info.account_id); + println!("NPK: {}", hex::encode(info.npk.0)); + println!("VPK: {}", hex::encode(&info.vpk.0)); + + wallet_core.store_persistent_data().await?; + Ok(SubcommandReturnValue::RegisterAccount { + account_id: info.account_id, + }) } else { // Standard wallet-tree-derived account let (account_id, chain_index) = wallet_core.create_new_account_private(cci); diff --git a/wallet/src/config.rs b/wallet/src/config.rs index bbd98ac7..d8e186bd 100644 --- a/wallet/src/config.rs +++ b/wallet/src/config.rs @@ -98,6 +98,18 @@ pub struct PersistentStorage { /// "2rnKprXqWGWJTkDZKsQbFXa4ctKRbapsdoTKQFnaVGG8"). #[serde(default)] pub labels: HashMap, + /// Group key holders for shared account management. + #[serde(default)] + pub group_key_holders: std::collections::BTreeMap< + String, + key_protocol::key_management::group_key_holder::GroupKeyHolder, + >, + /// Cached state of shared private accounts (PDA and regular). + #[serde(default)] + pub shared_private_accounts: std::collections::BTreeMap< + nssa::AccountId, + key_protocol::key_protocol_core::SharedAccountEntry, + >, } impl PersistentStorage { diff --git a/wallet/src/helperfunctions.rs b/wallet/src/helperfunctions.rs index 94755f6e..57416c55 100644 --- a/wallet/src/helperfunctions.rs +++ b/wallet/src/helperfunctions.rs @@ -204,6 +204,8 @@ pub fn produce_data_for_storage( accounts: vec_for_storage, last_synced_block, labels, + group_key_holders: user_data.group_key_holders.clone(), + shared_private_accounts: user_data.shared_private_accounts.clone(), } } diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs index f179ec44..545b704b 100644 --- a/wallet/src/lib.rs +++ b/wallet/src/lib.rs @@ -51,6 +51,13 @@ pub enum AccDecodeData { Decode(nssa_core::SharedSecretKey, AccountId), } +/// Info returned when creating a shared account. +pub struct SharedAccountInfo { + pub account_id: AccountId, + pub npk: nssa_core::NullifierPublicKey, + pub vpk: nssa_core::encryption::ViewingPublicKey, +} + #[derive(Debug, thiserror::Error)] pub enum ExecutionFailureKind { #[error("Failed to get data from sequencer")] @@ -98,6 +105,8 @@ impl WalletCore { accounts: persistent_accounts, last_synced_block, labels, + group_key_holders, + shared_private_accounts, } = PersistentStorage::from_path(&storage_path).with_context(|| { format!( "Failed to read persistent storage at {}", @@ -109,7 +118,12 @@ impl WalletCore { config_path, storage_path, config_overrides, - |config| WalletChainStore::new(config, persistent_accounts, labels), + |config| { + let mut store = WalletChainStore::new(config, persistent_accounts, labels)?; + store.user_data.group_key_holders = group_key_holders; + store.user_data.shared_private_accounts = shared_private_accounts; + Ok(store) + }, last_synced_block, ) } @@ -305,25 +319,93 @@ impl WalletCore { } /// Register a shared account in storage for sync tracking. - pub fn register_shared_account( + fn register_shared_account( &mut self, account_id: AccountId, group_label: String, identifier: nssa_core::Identifier, pda_seed: Option, + pda_program_id: Option, ) { use key_protocol::key_protocol_core::SharedAccountEntry; - self.storage.user_data.shared_accounts.insert( + self.storage.user_data.shared_private_accounts.insert( account_id, SharedAccountEntry { group_label, identifier, pda_seed, + pda_program_id, account: Account::default(), }, ); } + /// Create a shared PDA account from a group's GMS. Returns the `AccountId` and derived keys. + pub fn create_shared_pda_account( + &mut self, + group_name: &str, + pda_seed: nssa_core::program::PdaSeed, + program_id: nssa_core::program::ProgramId, + ) -> Result { + let holder = self + .storage + .user_data + .group_key_holder(group_name) + .context(format!("Group '{group_name}' not found"))?; + + let keys = holder.derive_keys_for_pda(&program_id, &pda_seed); + let npk = keys.generate_nullifier_public_key(); + let vpk = keys.generate_viewing_public_key(); + let account_id = AccountId::for_private_pda(&program_id, &pda_seed, &npk); + + self.register_shared_account( + account_id, + String::from(group_name), + u128::MAX, + Some(pda_seed), + Some(program_id), + ); + + Ok(SharedAccountInfo { + account_id, + npk, + vpk, + }) + } + + /// Create a shared regular private account from a group's GMS. Returns the `AccountId` and + /// derived keys. The derivation seed is computed deterministically from a random identifier. + pub fn create_shared_regular_account(&mut self, group_name: &str) -> Result { + let identifier: nssa_core::Identifier = rand::random(); + let derivation_seed = { + use sha2::Digest as _; + let mut hasher = sha2::Sha256::new(); + hasher.update(b"/LEE/v0.3/SharedAccountTag/\x00\x00\x00\x00\x00"); + hasher.update(identifier.to_le_bytes()); + let result: [u8; 32] = hasher.finalize().into(); + result + }; + + let holder = self + .storage + .user_data + .group_key_holder(group_name) + .context(format!("Group '{group_name}' not found"))?; + + let keys = holder.derive_keys_for_shared_account(&derivation_seed); + let npk = keys.generate_nullifier_public_key(); + let vpk = keys.generate_viewing_public_key(); + let account_id = AccountId::from((&npk, identifier)); + + self.register_shared_account(account_id, String::from(group_name), identifier, None, None); + + Ok(SharedAccountInfo { + account_id, + npk, + vpk, + }) + } + /// Get account balance. pub async fn get_account_balance(&self, acc: AccountId) -> Result { Ok(self.sequencer_client.get_account_balance(acc).await?) @@ -596,14 +678,14 @@ impl WalletCore { } // Scan for updates to shared accounts (GMS-derived). - self.sync_shared_accounts_with_tx(&tx); + self.sync_shared_private_accounts_with_tx(&tx); } - fn sync_shared_accounts_with_tx(&mut self, tx: &PrivacyPreservingTransaction) { + fn sync_shared_private_accounts_with_tx(&mut self, tx: &PrivacyPreservingTransaction) { let shared_keys: Vec<_> = self .storage .user_data - .shared_accounts + .shared_private_accounts .iter() .filter_map(|(&account_id, entry)| { let holder = self @@ -612,9 +694,13 @@ impl WalletCore { .group_key_holders .get(&entry.group_label)?; - let keys = entry.pda_seed.as_ref().map_or_else( - || { - let tag = { + let keys = match (&entry.pda_seed, &entry.pda_program_id) { + (Some(pda_seed), Some(program_id)) => { + holder.derive_keys_for_pda(program_id, pda_seed) + } + (Some(_), None) => return None, // PDA without program_id, skip + _ => { + let derivation_seed = { use sha2::Digest as _; let mut hasher = sha2::Sha256::new(); hasher.update(b"/LEE/v0.3/SharedAccountTag/\x00\x00\x00\x00\x00"); @@ -622,10 +708,9 @@ impl WalletCore { let result: [u8; 32] = hasher.finalize().into(); result }; - holder.derive_keys_for_shared_account(&tag) - }, - |pda_seed| holder.derive_keys_for_pda(pda_seed), - ); + holder.derive_keys_for_shared_account(&derivation_seed) + } + }; let npk = keys.generate_nullifier_public_key(); let vpk = keys.generate_viewing_public_key(); let vsk = keys.viewing_secret_key; @@ -658,7 +743,11 @@ impl WalletCore { .expect("Ciphertext ID is expected to fit in u32"), ) { info!("Synced shared account {account_id:#?} with new state {new_acc:#?}"); - if let Some(entry) = self.storage.user_data.shared_accounts.get_mut(&account_id) + if let Some(entry) = self + .storage + .user_data + .shared_private_accounts + .get_mut(&account_id) { entry.account = new_acc; } diff --git a/wallet/src/privacy_preserving_tx.rs b/wallet/src/privacy_preserving_tx.rs index dfac8180..cdf0bed7 100644 --- a/wallet/src/privacy_preserving_tx.rs +++ b/wallet/src/privacy_preserving_tx.rs @@ -335,7 +335,7 @@ async fn private_pda_preparation( let acc = wallet .storage .user_data - .shared_accounts + .shared_private_accounts .get(&account_id) .map(|e| e.account.clone()) .unwrap_or_default(); @@ -386,7 +386,7 @@ async fn private_shared_preparation( let acc = wallet .storage .user_data - .shared_accounts + .shared_private_accounts .get(&account_id) .map(|e| e.account.clone()) .unwrap_or_default(); From 4ace6e1570a4eb118bb140ce47dafb182683a466 Mon Sep 17 00:00:00 2001 From: Moudy Date: Thu, 7 May 2026 22:48:32 +0200 Subject: [PATCH 07/13] fix: address review feedback --- integration_tests/tests/ata.rs | 4 - .../tests/auth_transfer/private.rs | 16 -- integration_tests/tests/keys_restoration.rs | 16 -- integration_tests/tests/pinata.rs | 8 - integration_tests/tests/shared_accounts.rs | 21 ++- integration_tests/tests/token.rs | 48 ------ key_protocol/src/key_protocol_core/mod.rs | 48 +++++- .../privacy_preserving_transaction/circuit.rs | 12 +- .../guest/src/bin/private_pda_spender.rs | 2 +- wallet/src/cli/account.rs | 161 ++++++++++-------- wallet/src/lib.rs | 17 +- wallet/src/privacy_preserving_tx.rs | 10 +- 12 files changed, 151 insertions(+), 212 deletions(-) diff --git a/integration_tests/tests/ata.rs b/integration_tests/tests/ata.rs index 54ef5341..6f0bf05c 100644 --- a/integration_tests/tests/ata.rs +++ b/integration_tests/tests/ata.rs @@ -44,10 +44,6 @@ async fn new_private_account(ctx: &mut TestContext) -> Result { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), diff --git a/integration_tests/tests/auth_transfer/private.rs b/integration_tests/tests/auth_transfer/private.rs index 6f05cdee..8db5f8d4 100644 --- a/integration_tests/tests/auth_transfer/private.rs +++ b/integration_tests/tests/auth_transfer/private.rs @@ -160,10 +160,6 @@ async fn private_transfer_to_owned_account_using_claiming_path() -> Result<()> { // Create a new private account let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })); @@ -332,10 +328,6 @@ async fn private_transfer_to_owned_account_continuous_run_path() -> Result<()> { // Create a new private account let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })); @@ -401,10 +393,6 @@ async fn initialize_private_account() -> Result<()> { let mut ctx = TestContext::new().await?; let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })); @@ -505,10 +493,6 @@ async fn initialize_private_account_using_label() -> Result<()> { // Create a new private account with a label let label = "init-private-label".to_owned(); let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: Some(label.clone()), })); diff --git a/integration_tests/tests/keys_restoration.rs b/integration_tests/tests/keys_restoration.rs index 8fae9808..ff339120 100644 --- a/integration_tests/tests/keys_restoration.rs +++ b/integration_tests/tests/keys_restoration.rs @@ -30,10 +30,6 @@ async fn sync_private_account_with_non_zero_chain_index() -> Result<()> { // Create a new private account let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })); @@ -44,10 +40,6 @@ async fn sync_private_account_with_non_zero_chain_index() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -127,10 +119,6 @@ async fn restore_keys_from_seed() -> Result<()> { // Create first private account at root let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: Some(ChainIndex::root()), label: None, })); @@ -144,10 +132,6 @@ async fn restore_keys_from_seed() -> Result<()> { // Create second private account at /0 let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: Some(ChainIndex::from_str("/0")?), label: None, })); diff --git a/integration_tests/tests/pinata.rs b/integration_tests/tests/pinata.rs index d4523f94..77c4a646 100644 --- a/integration_tests/tests/pinata.rs +++ b/integration_tests/tests/pinata.rs @@ -85,10 +85,6 @@ async fn claim_pinata_to_uninitialized_private_account_fails_fast() -> Result<() let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -233,10 +229,6 @@ async fn claim_pinata_to_new_private_account() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), diff --git a/integration_tests/tests/shared_accounts.rs b/integration_tests/tests/shared_accounts.rs index b91502d1..905ae367 100644 --- a/integration_tests/tests/shared_accounts.rs +++ b/integration_tests/tests/shared_accounts.rs @@ -45,10 +45,9 @@ async fn group_create_and_shared_account_registration() -> Result<()> { ); // Create a shared regular private account from the group - let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - cci: None, + let command = Command::Account(AccountSubcommand::New(NewSubcommand::PrivateGms { + group: "test-group".to_string(), label: Some("shared-acc".to_string()), - for_gms: Some("test-group".to_string()), pda: false, seed: None, program_id: None, @@ -63,9 +62,11 @@ async fn group_create_and_shared_account_registration() -> Result<()> { }; // Verify shared account is registered in storage - let shared_private_accounts = &ctx.wallet().storage().user_data.shared_private_accounts; - let entry = shared_private_accounts - .get(&shared_account_id) + let entry = ctx + .wallet() + .storage() + .user_data + .shared_private_account(&shared_account_id) .context("Shared account not found in storage")?; assert_eq!(entry.group_label, "test-group"); assert!(entry.pda_seed.is_none()); @@ -143,10 +144,9 @@ async fn fund_shared_account_from_public() -> Result<()> { }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; - let command = Command::Account(AccountSubcommand::New(NewSubcommand::Private { - cci: None, + let command = Command::Account(AccountSubcommand::New(NewSubcommand::PrivateGms { + group: "fund-group".to_string(), label: None, - for_gms: Some("fund-group".to_string()), pda: false, seed: None, program_id: None, @@ -193,8 +193,7 @@ async fn fund_shared_account_from_public() -> Result<()> { .wallet() .storage() .user_data - .shared_private_accounts - .get(&shared_id) + .shared_private_account(&shared_id) .context("Shared account not found after sync")?; info!( diff --git a/integration_tests/tests/token.rs b/integration_tests/tests/token.rs index 93786a57..6db718f9 100644 --- a/integration_tests/tests/token.rs +++ b/integration_tests/tests/token.rs @@ -297,10 +297,6 @@ async fn create_and_transfer_token_with_private_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -317,10 +313,6 @@ async fn create_and_transfer_token_with_private_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -468,10 +460,6 @@ async fn create_token_with_private_definition() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: Some(ChainIndex::root()), label: None, })), @@ -544,10 +532,6 @@ async fn create_token_with_private_definition() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -678,10 +662,6 @@ async fn create_token_with_private_definition_and_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -698,10 +678,6 @@ async fn create_token_with_private_definition_and_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -764,10 +740,6 @@ async fn create_token_with_private_definition_and_supply() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -883,10 +855,6 @@ async fn shielded_token_transfer() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -998,10 +966,6 @@ async fn deshielded_token_transfer() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -1113,10 +1077,6 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -1133,10 +1093,6 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), @@ -1170,10 +1126,6 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> { let result = wallet::cli::execute_subcommand( ctx.wallet_mut(), Command::Account(AccountSubcommand::New(NewSubcommand::Private { - for_gms: None, - pda: false, - seed: None, - program_id: None, cci: None, label: None, })), diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index a18c1d3a..3adea616 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -36,7 +36,7 @@ pub struct SharedAccountEntry { pub account: Account, } -#[derive(Clone, Debug, Serialize, Deserialize)] +#[derive(Clone, Debug)] pub struct NSSAUserData { /// Default public accounts. pub default_pub_account_signing_keys: BTreeMap, @@ -46,17 +46,11 @@ pub struct NSSAUserData { pub public_key_tree: KeyTreePublic, /// Tree of private keys. pub private_key_tree: KeyTreePrivate, - /// Group key holders for private PDA groups, keyed by a human-readable label. - /// Defaults to empty for backward compatibility with wallets that predate group PDAs. - /// An older wallet binary that re-serializes this struct will drop the field. - #[serde(default)] + /// Group key holders for shared account management, keyed by a human-readable label. pub group_key_holders: BTreeMap, - /// Cached plaintext state of shared accounts (PDAs and regular shared accounts), + /// Cached plaintext state of shared private accounts (PDAs and regular shared accounts), /// keyed by `AccountId`. Each entry stores the group label and identifier needed /// to re-derive keys during sync. - /// Old wallet files with `pda_accounts` (plain Account values) are incompatible with - /// this type. The `default` attribute ensures they deserialize as empty rather than failing. - #[serde(default)] pub shared_private_accounts: BTreeMap, } @@ -239,6 +233,42 @@ impl NSSAUserData { pub fn insert_group_key_holder(&mut self, label: String, holder: GroupKeyHolder) { self.group_key_holders.insert(label, holder); } + + /// Returns the cached account for a shared private account, if it exists. + #[must_use] + pub fn shared_private_account( + &self, + account_id: &nssa::AccountId, + ) -> Option<&SharedAccountEntry> { + self.shared_private_accounts.get(account_id) + } + + /// Inserts or replaces a shared private account entry. + pub fn insert_shared_private_account( + &mut self, + account_id: nssa::AccountId, + entry: SharedAccountEntry, + ) { + self.shared_private_accounts.insert(account_id, entry); + } + + /// Updates the cached account state for a shared private account. + pub fn update_shared_private_account_state( + &mut self, + account_id: &nssa::AccountId, + account: nssa_core::account::Account, + ) { + if let Some(entry) = self.shared_private_accounts.get_mut(account_id) { + entry.account = account; + } + } + + /// Iterates over all shared private accounts. + pub fn shared_private_accounts_iter( + &self, + ) -> impl Iterator { + self.shared_private_accounts.iter() + } } impl Default for NSSAUserData { diff --git a/nssa/src/privacy_preserving_transaction/circuit.rs b/nssa/src/privacy_preserving_transaction/circuit.rs index 913cbb29..90efe6d1 100644 --- a/nssa/src/privacy_preserving_transaction/circuit.rs +++ b/nssa/src/privacy_preserving_transaction/circuit.rs @@ -420,7 +420,7 @@ mod tests { /// PDA init: initializes a new PDA under `authenticated_transfer`'s ownership. /// The `private_pda_spender` program chains to `authenticated_transfer` with `pda_seeds` - /// to establish authorization and the mask-3 binding. + /// to establish authorization and the private PDA binding. #[test] fn private_pda_init() { let program = Program::private_pda_spender(); @@ -430,7 +430,7 @@ mod tests { let seed = PdaSeed::new([42; 32]); let shared_secret_pda = SharedSecretKey::new(&[55; 32], &keys.vpk()); - // PDA (new, mask 3) — AccountId derived from private_pda_spender's program ID + // PDA (new, private PDA) — AccountId derived from private_pda_spender's program ID let pda_id = AccountId::for_private_pda(&program.id(), &seed, &npk); let pda_pre = AccountWithMetadata::new(Account::default(), false, pda_id); @@ -467,11 +467,11 @@ mod tests { let seed = PdaSeed::new([42; 32]); let shared_secret_pda = SharedSecretKey::new(&[55; 32], &keys.vpk()); - // PDA (new, mask 3) + // PDA (new, private PDA) let pda_id = AccountId::for_private_pda(&program.id(), &seed, &npk); let pda_pre = AccountWithMetadata::new(Account::default(), false, pda_id); - // Recipient (mask 0, public) + // Recipient (public) let recipient_id = AccountId::new([88; 32]); let recipient_pre = AccountWithMetadata::new( Account { @@ -510,7 +510,7 @@ mod tests { /// Shared regular private account: receives funds via `authenticated_transfer` directly, /// no custom program needed. This demonstrates the non-PDA shared account flow where /// keys are derived from GMS via `derive_keys_for_shared_account`. The shared account - /// uses standard mask 2 (new unauthorized private) and works with auth-transfer's + /// uses the standard unauthorized private account path and works with auth-transfer's /// transfer path like any other private account. #[test] fn shared_account_receives_via_auth_transfer() { @@ -532,7 +532,7 @@ mod tests { sender_id, ); - // Recipient: shared private account (new, unauthorized, mask 2) + // Recipient: shared private account (new, unauthorized) let shared_account_id = AccountId::from((&shared_npk, shared_identifier)); let recipient = AccountWithMetadata::new(Account::default(), false, shared_account_id); diff --git a/test_program_methods/guest/src/bin/private_pda_spender.rs b/test_program_methods/guest/src/bin/private_pda_spender.rs index 2f3b9c23..17316f16 100644 --- a/test_program_methods/guest/src/bin/private_pda_spender.rs +++ b/test_program_methods/guest/src/bin/private_pda_spender.rs @@ -53,7 +53,7 @@ fn main() { // Chain to authenticated_transfer with pda_seeds to authorize the PDA. // The circuit's resolve_authorization_and_record_bindings establishes the - // mask-3 (seed, npk) binding when pda_seeds match the private PDA derivation. + // private PDA (seed, npk) binding when pda_seeds match the private PDA derivation. let mut auth_pda_pre = pda_pre; auth_pda_pre.is_authorized = true; let auth_call = diff --git a/wallet/src/cli/account.rs b/wallet/src/cli/account.rs index cfb1c8e4..0e12e9a5 100644 --- a/wallet/src/cli/account.rs +++ b/wallet/src/cli/account.rs @@ -83,19 +83,23 @@ pub enum NewSubcommand { label: Option, }, /// Single-account convenience: creates a key node and auto-registers one account with a random - /// identifier. When `--for-gms` is provided, derives keys from the named group instead of - /// the wallet's key tree. + /// identifier. Private { #[arg(long)] - /// Chain index of a parent node (ignored when --for-gms is used). + /// Chain index of a parent node. cci: Option, #[arg(short, long)] /// Label to assign to the new account. label: Option, + }, + /// Create a shared private account from a group's GMS. + PrivateGms { + /// Group name to derive keys from. + group: String, + #[arg(short, long)] + /// Label to assign to the new account. + label: Option, #[arg(long)] - /// Derive keys from a group's GMS instead of the wallet tree. - for_gms: Option, - #[arg(long, requires = "for_gms")] /// Create a PDA account (requires --seed and --program-id). pda: bool, #[arg(long, requires = "pda")] @@ -157,10 +161,50 @@ impl WalletSubcommand for NewSubcommand { Ok(SubcommandReturnValue::RegisterAccount { account_id }) } - Self::Private { - cci, + Self::Private { cci, label } => { + if let Some(label) = &label + && wallet_core + .storage + .labels + .values() + .any(|l| l.to_string() == *label) + { + anyhow::bail!("Label '{label}' is already in use by another account"); + } + + let (account_id, chain_index) = wallet_core.create_new_account_private(cci); + + let node = wallet_core + .storage + .user_data + .private_key_tree + .key_map + .get(&chain_index) + .expect("Node was just inserted"); + let key = &node.value.0; + + if let Some(label) = label { + wallet_core + .storage + .labels + .insert(account_id.to_string(), Label::new(label)); + } + + println!( + "Generated new account with account_id Private/{account_id} at path {chain_index}" + ); + println!("With npk {}", hex::encode(key.nullifier_public_key.0)); + println!( + "With vpk {}", + hex::encode(key.viewing_public_key.to_bytes()) + ); + + wallet_core.store_persistent_data().await?; + Ok(SubcommandReturnValue::RegisterAccount { account_id }) + } + Self::PrivateGms { + group, label, - for_gms, pda, seed, program_id, @@ -175,80 +219,47 @@ impl WalletSubcommand for NewSubcommand { anyhow::bail!("Label '{label}' is already in use by another account"); } - if let Some(group_name) = for_gms { - let info = if pda { - let seed_hex = seed.context("--seed is required for PDA accounts")?; - let pid_hex = - program_id.context("--program-id is required for PDA accounts")?; + let info = if pda { + let seed_hex = seed.context("--seed is required for PDA accounts")?; + let pid_hex = + program_id.context("--program-id is required for PDA accounts")?; - let seed_bytes: [u8; 32] = hex::decode(&seed_hex) - .context("Invalid seed hex")? - .try_into() - .map_err(|_err| anyhow::anyhow!("Seed must be exactly 32 bytes"))?; - let pda_seed = nssa_core::program::PdaSeed::new(seed_bytes); + let seed_bytes: [u8; 32] = hex::decode(&seed_hex) + .context("Invalid seed hex")? + .try_into() + .map_err(|_err| anyhow::anyhow!("Seed must be exactly 32 bytes"))?; + let pda_seed = nssa_core::program::PdaSeed::new(seed_bytes); - let pid_bytes = hex::decode(&pid_hex).context("Invalid program ID hex")?; - if pid_bytes.len() != 32 { - anyhow::bail!("Program ID must be exactly 32 bytes"); - } - let mut pid: nssa_core::program::ProgramId = [0; 8]; - for (i, chunk) in pid_bytes.chunks_exact(4).enumerate() { - pid[i] = u32::from_le_bytes(chunk.try_into().unwrap()); - } - - wallet_core.create_shared_pda_account(&group_name, pda_seed, pid)? - } else { - wallet_core.create_shared_regular_account(&group_name)? - }; - - if let Some(label) = label { - wallet_core - .storage - .labels - .insert(info.account_id.to_string(), Label::new(label)); + let pid_bytes = hex::decode(&pid_hex).context("Invalid program ID hex")?; + if pid_bytes.len() != 32 { + anyhow::bail!("Program ID must be exactly 32 bytes"); + } + let mut pid: nssa_core::program::ProgramId = [0; 8]; + for (i, chunk) in pid_bytes.chunks_exact(4).enumerate() { + pid[i] = u32::from_le_bytes(chunk.try_into().unwrap()); } - println!("Shared account from group '{group_name}'"); - println!("AccountId: Private/{}", info.account_id); - println!("NPK: {}", hex::encode(info.npk.0)); - println!("VPK: {}", hex::encode(&info.vpk.0)); - - wallet_core.store_persistent_data().await?; - Ok(SubcommandReturnValue::RegisterAccount { - account_id: info.account_id, - }) + wallet_core.create_shared_pda_account(&group, pda_seed, pid)? } else { - // Standard wallet-tree-derived account - let (account_id, chain_index) = wallet_core.create_new_account_private(cci); + wallet_core.create_shared_regular_account(&group)? + }; - let node = wallet_core + if let Some(label) = label { + wallet_core .storage - .user_data - .private_key_tree - .key_map - .get(&chain_index) - .expect("Node was just inserted"); - let key = &node.value.0; - - if let Some(label) = label { - wallet_core - .storage - .labels - .insert(account_id.to_string(), Label::new(label)); - } - - println!( - "Generated new account with account_id Private/{account_id} at path {chain_index}" - ); - println!("With npk {}", hex::encode(key.nullifier_public_key.0)); - println!( - "With vpk {}", - hex::encode(key.viewing_public_key.to_bytes()) - ); - - wallet_core.store_persistent_data().await?; - Ok(SubcommandReturnValue::RegisterAccount { account_id }) + .labels + .insert(info.account_id.to_string(), Label::new(label)); } + + println!("Shared account from group '{group}'"); + println!("AccountId: Private/{}", info.account_id); + println!("NPK: {}", hex::encode(info.npk.0)); + println!("VPK: {}", hex::encode(&info.vpk.0)); + + wallet_core.store_persistent_data().await?; + Ok(SubcommandReturnValue::RegisterAccount { + account_id: info.account_id, + }) } Self::PrivateAccountsKey { cci } => { let chain_index = wallet_core.create_private_accounts_key(cci); diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs index 545b704b..1ff65ce9 100644 --- a/wallet/src/lib.rs +++ b/wallet/src/lib.rs @@ -328,7 +328,7 @@ impl WalletCore { pda_program_id: Option, ) { use key_protocol::key_protocol_core::SharedAccountEntry; - self.storage.user_data.shared_private_accounts.insert( + self.storage.user_data.insert_shared_private_account( account_id, SharedAccountEntry { group_label, @@ -685,14 +685,12 @@ impl WalletCore { let shared_keys: Vec<_> = self .storage .user_data - .shared_private_accounts - .iter() + .shared_private_accounts_iter() .filter_map(|(&account_id, entry)| { let holder = self .storage .user_data - .group_key_holders - .get(&entry.group_label)?; + .group_key_holder(&entry.group_label)?; let keys = match (&entry.pda_seed, &entry.pda_program_id) { (Some(pda_seed), Some(program_id)) => { @@ -743,14 +741,9 @@ impl WalletCore { .expect("Ciphertext ID is expected to fit in u32"), ) { info!("Synced shared account {account_id:#?} with new state {new_acc:#?}"); - if let Some(entry) = self - .storage + self.storage .user_data - .shared_private_accounts - .get_mut(&account_id) - { - entry.account = new_acc; - } + .update_shared_private_account_state(&account_id, new_acc); } } } diff --git a/wallet/src/privacy_preserving_tx.rs b/wallet/src/privacy_preserving_tx.rs index cdf0bed7..5f35cde9 100644 --- a/wallet/src/privacy_preserving_tx.rs +++ b/wallet/src/privacy_preserving_tx.rs @@ -31,8 +31,8 @@ pub enum PrivacyPreservingAccount { seed: PdaSeed, }, /// A shared regular private account with externally-provided keys (e.g. from GMS). - /// Uses standard `AccountId = from((&npk, identifier))` and mask 1/2. - /// Works with `authenticated_transfer` and all existing programs out of the box. + /// Uses standard `AccountId = from((&npk, identifier))` with authorized/unauthorized private + /// paths. Works with `authenticated_transfer` and all existing programs out of the box. PrivateShared { nsk: NullifierSecretKey, npk: NullifierPublicKey, @@ -335,8 +335,7 @@ async fn private_pda_preparation( let acc = wallet .storage .user_data - .shared_private_accounts - .get(&account_id) + .shared_private_account(&account_id) .map(|e| e.account.clone()) .unwrap_or_default(); @@ -386,8 +385,7 @@ async fn private_shared_preparation( let acc = wallet .storage .user_data - .shared_private_accounts - .get(&account_id) + .shared_private_account(&account_id) .map(|e| e.account.clone()) .unwrap_or_default(); From 4e7963c65517e75f8b8576d267b89ba536d35535 Mon Sep 17 00:00:00 2001 From: Moudy Date: Fri, 8 May 2026 08:19:55 +0200 Subject: [PATCH 08/13] feat: add dedicated sealing key for GMS distribution --- .../private_pda_spender.bin | Bin 403052 -> 403024 bytes .../src/key_management/group_key_holder.rs | 11 ++-- key_protocol/src/key_protocol_core/mod.rs | 5 ++ wallet/src/cli/group.rs | 49 ++++++++++++------ wallet/src/config.rs | 3 ++ wallet/src/helperfunctions.rs | 1 + wallet/src/lib.rs | 7 +++ 7 files changed, 53 insertions(+), 23 deletions(-) diff --git a/artifacts/test_program_methods/private_pda_spender.bin b/artifacts/test_program_methods/private_pda_spender.bin index cc602ee4ec61debe74ecd28f84b0dce80bfcc7bd..ca1c8bd6ac32b983851454cf3eb51173ec3fc37f 100644 GIT binary patch delta 9765 zcmaKxdwdjCvVg0nXCy!b5`x5l(mezT7$v++kjNu|Mv3weHDI_92+B)Ac?c4ifQd#8 zZ*)*mSQi9YRIWx_kt-3xLygKR3cI4B7a>76{E;7D*Qq*n>QvP^ z-E*ueac@=PlGfUWrI)q!)vTMJRg$HZWcgmt(m&Bd*L^3FIwvU2L`3uXB<+YuYY*QC zXTpg}egv-SW=JyZ^J$WOR3xUmA%@~#;S@M3pHwZ91E(nYKj7)`n-LC4yZ^(1YYaK8 z226n0cpTUWA51sIuSF(&?t76{g|5Sg;6oXPRQMwDem{tmdE_N$G*M5-L@Q# zEGXoYhR2w&ry+aQ1nCG^lyf1;h@dK@MsYahOy!s)qs{ii`>8j{S*&}Cow?-#m~U^!xt<55)Q$Q6t}Uy z3+NyFLmy*z&GqiqRMfDQ^IS(){UVa*;e&9Ehg%;fvL4=Wg4DRdkObzjw?6SC3&}R5 zwc@#O!i{x2Myh#`#)Hu+vZGIlEV;>$B}yUwR}q5=nkvVK!kys8ikHDT9{DHme0Zdi z$6HS{)(2@ruKJS*k20iErNB?3$(s3Yz&dG~48GHlJ<5+t+xd}(WGh~!YqFm40cH0q ztNX?JYAsY-E0R5i+*RYA`Hh_&Ye<>m&cBlh=tXN|8oUoqS9V^9E8%En{0a|V;Bt>M zB4-QmOJ&MIxN^K9tI#LFLnU-pWb_0>s2L~Xm;Zr76YC-@C2)aabENVl zLslyN!{K#J^-$*q4K&HP$B;xdY&l#sxvnOqcZ?>RJ$}v)-_}h3*-RyDeWtkE8Fvw3 zz1PjJVryKS{;@BVO!%`O3d)r#4CCMoI2wi*-~%4s#`a9Vk5wvnc44;$xnJooXsk)z zG`EG+z{PO1BTR_ZWE$hgM8=0-OVHnq+eS{5PA62#=1l9F+RcG$d9|BU|A7M}u;a(mM;^4Kt53 zajz>_NU@s^Mets-GwRrOxHa}#D|?Nsoo)2hzR>7+P2POW&GNrpuF0%r?!0krNK@Fh zWAE4ucra`z{tB+ZZa2kE4Ld-tycayxqrU<6*bhk)^ZW_!hrJVg0iX0t5F0#yf}XH< zf_3nQGD8k2hxWt9Qnx*|Xsb!-LPG{S@{lG2d62TmRd@*A`?w(ol!4db>cxg+I9sa8 z3HU&r0ZlrvgE7dX6Q*>;-lJ}xcoVK+r=ltI;g#$-d?WTX>zlT^9tdqDOC~?=?$$AQ z4;SP6TDj#owtI>}(m!)uVnQLz!yu#&>w7i-{c_thI zPj?5%v+$lLC_M7dPJ>`4(wcNL>_w3G4|k?HKI`_-+%7nXJ-bkC`P1-pc$nfZ;pW&M z?QnCSyx&!mgjQ{xJkorA30kK*=$(9_P0cl_`U@RKb^lIjnv}mtBouFiXRX6A`k?Jt z5j9uv9L-(Hx4?Oe+58g`OR2d@XYPh^9ymyvgI&LO5qh-MW0z-5Phb z-qaWB$6-;q#jWs{;Q|l0ybMR-Xh+C~Prl_k`T)GvGyYq+*uw+qKxY{r)h~pPx%%M~ zY5F&DlSvD2)H{a1>#UE`7FYwi=zj*Zmezm_eRWLd`MtQqY-es&7pLLT@4B_wueT zFK^al7#uxi+E}06X5ZCL+(6jAcF*7IvN`VH1hs&B;q0f~WPJtBJ?x$ijc%m3eQU@p z70&_iFvfR8-)RGIB^>o*H@wf~G1BlRs>6LCH^FQE*WHjO;k0L50|($=SV(_0!KEyG z9{N!p0Uw5)W=fw~6}~N3pQ7!tcIN7fwIT7uVd@XurBy&@!_`Mvzw&<*Tzk}Af9@@8 zShXPqs)+W$Ydr3}VXYgXhkRXr9i&O>IYX*c+$IgCz5U@X!-6ZHbC*#&*t&hB{#79K zP#zPaSf&(XM>9b~Q;sRlfsHk;;v#qz96iSO!g(H!&*#3;$dr9be<<9{qrU<^wmK+n zk+VVZ@;MLE7!cjD#PH6s`p-jljNlqT`%QDk1*GAfwAEO%uG?G#S9t8sg4e>WB6ej9 zT#Y_)WuAaEvjXGvSNx$KL$KS#lmxW_55rZ>%(}b!r*L_kS@)7*45j$v&AMyPBv}69 zCi+WoYI9d!3s>VuqVnU~TZxY=4@n6R_Id{FhRYbR2?e`k3y0w#6GQ{N4X%Kr8SJ}_ zgiT-pDr36AIW1hi3m$!m%PZmOElpYL*ynoD{&reWqFL9@-hgvpHqvomz#Wtv6JDxT zPzvY6(bD|@_Bx!Odp_6xKVCfCBloky4p#R`dQ-jch%p@TNv71Oi3`WlGcGlyKt*EE zI8q0Bq2gk=49-#fTDat1dgIhlwDafP06lLFn4*u;L+k&Gmh@LQkl(|7R=5|`tI(T@ zJQ~;=?q=PWnd%;<$wGJ~Y-gaoF@f>)U{6Ms!l~#tL2kF258(bmQ;H(vyU5`Ql#1to zYd?_zD5NTdi8i|m@{)DiG+IS|l^usE&+k8(`90%G;I&tna!}db4i~jIrC629z7$nYjum)B-_{^hR?Fvzfu>|A^$+P_Y5mN)4t9#^Qd_%~|0??|*CSUg^h&~; 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let expected_npk = NullifierPublicKey([ - 185, 161, 225, 224, 20, 156, 173, 0, 6, 173, 74, 136, 16, 88, 71, 154, 101, 160, 224, - 162, 247, 98, 183, 210, 118, 130, 143, 237, 20, 112, 111, 114, - ]); - let expected_account_id = AccountId::new([ - 236, 138, 175, 184, 194, 233, 144, 109, 157, 51, 193, 120, 83, 110, 147, 90, 154, 57, - 148, 236, 12, 92, 135, 38, 253, 79, 88, 143, 161, 175, 46, 144, + 136, 176, 234, 71, 208, 8, 143, 142, 126, 155, 132, 18, 71, 27, 88, 56, 100, 90, 79, + 215, 76, 92, 60, 166, 104, 35, 51, 91, 16, 114, 188, 112, ]); + // AccountId is derived from (program_id, seed, npk), so it changes when npk changes. + // We verify npk is pinned, and AccountId is deterministically derived from it. + let expected_account_id = AccountId::for_private_pda(&program_id, &seed, &expected_npk); assert_eq!(npk, expected_npk); assert_eq!(account_id, expected_account_id); diff --git a/key_protocol/src/key_protocol_core/mod.rs b/key_protocol/src/key_protocol_core/mod.rs index 3adea616..20bea342 100644 --- a/key_protocol/src/key_protocol_core/mod.rs +++ b/key_protocol/src/key_protocol_core/mod.rs @@ -52,6 +52,10 @@ pub struct NSSAUserData { /// keyed by `AccountId`. Each entry stores the group label and identifier needed /// to re-derive keys during sync. pub shared_private_accounts: BTreeMap, + /// Dedicated sealing secret key for GMS distribution. Generated once via + /// `wallet group new-sealing-key`. The corresponding public key is shared with + /// group members so they can seal GMS for this wallet. + pub sealing_secret_key: Option, } impl NSSAUserData { @@ -112,6 +116,7 @@ impl NSSAUserData { private_key_tree, group_key_holders: BTreeMap::new(), shared_private_accounts: BTreeMap::new(), + sealing_secret_key: None, }) } diff --git a/wallet/src/cli/group.rs b/wallet/src/cli/group.rs index 0a1d8d54..f1d93b75 100644 --- a/wallet/src/cli/group.rs +++ b/wallet/src/cli/group.rs @@ -45,16 +45,17 @@ pub enum GroupSubcommand { key: String, }, /// Unseal a received GMS and store it (join a group). + /// Uses the wallet's dedicated sealing key (generated via `new-sealing-key`). Join { /// Human-readable name to store the group under. name: String, /// Sealed GMS as hex string (from the inviter). #[arg(long)] sealed: String, - /// Account ID whose viewing secret key to use for decryption. - #[arg(long)] - account: String, }, + /// Generate a dedicated sealing key pair for GMS distribution. + /// Share the printed public key with group members so they can seal GMS for you. + NewSealingKey, } impl WalletSubcommand for GroupSubcommand { @@ -156,11 +157,7 @@ impl WalletSubcommand for GroupSubcommand { Ok(SubcommandReturnValue::Empty) } - Self::Join { - name, - sealed, - account, - } => { + Self::Join { name, sealed } => { if wallet_core .storage() .user_data @@ -170,17 +167,14 @@ impl WalletSubcommand for GroupSubcommand { anyhow::bail!("Group '{name}' already exists"); } + let sealing_key = + wallet_core.storage().user_data.sealing_secret_key.context( + "No sealing key found. Run 'wallet group new-sealing-key' first.", + )?; + let sealed_bytes = hex::decode(&sealed).context("Invalid sealed hex")?; - let account_id: nssa::AccountId = account.parse().context("Invalid account ID")?; - let (keychain, _, _) = wallet_core - .storage() - .user_data - .get_private_account(account_id) - .context("Private account not found")?; - let vsk = keychain.private_key_holder.viewing_secret_key; - - let holder = GroupKeyHolder::unseal(&sealed_bytes, &vsk) + let holder = GroupKeyHolder::unseal(&sealed_bytes, &sealing_key) .map_err(|e| anyhow::anyhow!("Failed to unseal: {e:?}"))?; wallet_core.insert_group_key_holder(name.clone(), holder); @@ -189,6 +183,27 @@ impl WalletSubcommand for GroupSubcommand { println!("Joined group '{name}'"); Ok(SubcommandReturnValue::Empty) } + + Self::NewSealingKey => { + if wallet_core.storage().user_data.sealing_secret_key.is_some() { + anyhow::bail!("Sealing key already exists. Each wallet has one sealing key."); + } + + let mut secret: nssa_core::encryption::Scalar = [0_u8; 32]; + rand::RngCore::fill_bytes(&mut rand::rngs::OsRng, &mut secret); + let public_key = + nssa_core::encryption::shared_key_derivation::Secp256k1Point::from_scalar( + secret, + ); + + wallet_core.set_sealing_secret_key(secret); + wallet_core.store_persistent_data().await?; + + println!("Sealing key generated."); + println!("Public key: {}", hex::encode(&public_key.0)); + println!("Share this public key with group members so they can seal GMS for you."); + Ok(SubcommandReturnValue::Empty) + } } } } diff --git a/wallet/src/config.rs b/wallet/src/config.rs index d8e186bd..79a4e3c9 100644 --- a/wallet/src/config.rs +++ b/wallet/src/config.rs @@ -110,6 +110,9 @@ pub struct PersistentStorage { nssa::AccountId, key_protocol::key_protocol_core::SharedAccountEntry, >, + /// Dedicated sealing secret key for GMS distribution. + #[serde(default)] + pub sealing_secret_key: Option, } impl PersistentStorage { diff --git a/wallet/src/helperfunctions.rs b/wallet/src/helperfunctions.rs index 57416c55..bc53edc0 100644 --- a/wallet/src/helperfunctions.rs +++ b/wallet/src/helperfunctions.rs @@ -206,6 +206,7 @@ pub fn produce_data_for_storage( labels, group_key_holders: user_data.group_key_holders.clone(), shared_private_accounts: user_data.shared_private_accounts.clone(), + sealing_secret_key: user_data.sealing_secret_key, } } diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs index 1ff65ce9..307b253a 100644 --- a/wallet/src/lib.rs +++ b/wallet/src/lib.rs @@ -107,6 +107,7 @@ impl WalletCore { labels, group_key_holders, shared_private_accounts, + sealing_secret_key, } = PersistentStorage::from_path(&storage_path).with_context(|| { format!( "Failed to read persistent storage at {}", @@ -122,6 +123,7 @@ impl WalletCore { let mut store = WalletChainStore::new(config, persistent_accounts, labels)?; store.user_data.group_key_holders = group_key_holders; store.user_data.shared_private_accounts = shared_private_accounts; + store.user_data.sealing_secret_key = sealing_secret_key; Ok(store) }, last_synced_block, @@ -310,6 +312,11 @@ impl WalletCore { self.storage.user_data.insert_group_key_holder(name, holder); } + /// Set the wallet's dedicated sealing secret key. + pub const fn set_sealing_secret_key(&mut self, key: nssa_core::encryption::Scalar) { + self.storage.user_data.sealing_secret_key = Some(key); + } + /// Remove a group key holder from storage. Returns the removed holder if it existed. pub fn remove_group_key_holder( &mut self, From 2b2275ee7406bffbeeb35b479a9ee77efa8762b3 Mon Sep 17 00:00:00 2001 From: Moudy Date: Fri, 8 May 2026 11:03:13 +0200 Subject: [PATCH 09/13] fix: resolve shared accounts in auth-transfer commands --- wallet/src/lib.rs | 53 +++++++++++++++++++ .../native_token_transfer/private.rs | 21 ++++++-- 2 files changed, 69 insertions(+), 5 deletions(-) diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs index 307b253a..1d9c2c7e 100644 --- a/wallet/src/lib.rs +++ b/wallet/src/lib.rs @@ -317,6 +317,59 @@ impl WalletCore { self.storage.user_data.sealing_secret_key = Some(key); } + /// Resolve an `AccountId` to the appropriate `PrivacyPreservingAccount` variant. + /// Checks the key tree first, then shared private accounts. + #[must_use] + pub fn resolve_private_account( + &self, + account_id: nssa::AccountId, + ) -> Option { + // Check key tree first + if self + .storage + .user_data + .get_private_account(account_id) + .is_some() + { + return Some(PrivacyPreservingAccount::PrivateOwned(account_id)); + } + + // Check shared private accounts + let entry = self.storage.user_data.shared_private_account(&account_id)?; + let holder = self + .storage + .user_data + .group_key_holder(&entry.group_label)?; + + if let Some(pda_seed) = &entry.pda_seed { + let program_id = entry.pda_program_id?; + let keys = holder.derive_keys_for_pda(&program_id, pda_seed); + Some(PrivacyPreservingAccount::PrivatePda { + nsk: keys.nullifier_secret_key, + npk: keys.generate_nullifier_public_key(), + vpk: keys.generate_viewing_public_key(), + program_id, + seed: *pda_seed, + }) + } else { + let derivation_seed = { + use sha2::Digest as _; + let mut hasher = sha2::Sha256::new(); + hasher.update(b"/LEE/v0.3/SharedAccountTag/\x00\x00\x00\x00\x00"); + hasher.update(entry.identifier.to_le_bytes()); + let result: [u8; 32] = hasher.finalize().into(); + result + }; + let keys = holder.derive_keys_for_shared_account(&derivation_seed); + Some(PrivacyPreservingAccount::PrivateShared { + nsk: keys.nullifier_secret_key, + npk: keys.generate_nullifier_public_key(), + vpk: keys.generate_viewing_public_key(), + identifier: entry.identifier, + }) + } + } + /// Remove a group key holder from storage. Returns the removed holder if it existed. pub fn remove_group_key_holder( &mut self, diff --git a/wallet/src/program_facades/native_token_transfer/private.rs b/wallet/src/program_facades/native_token_transfer/private.rs index d317b31c..436c2d41 100644 --- a/wallet/src/program_facades/native_token_transfer/private.rs +++ b/wallet/src/program_facades/native_token_transfer/private.rs @@ -14,9 +14,14 @@ impl NativeTokenTransfer<'_> { ) -> Result<(HashType, SharedSecretKey), ExecutionFailureKind> { let instruction: u128 = 0; + let account = self + .0 + .resolve_private_account(from) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?; + self.0 .send_privacy_preserving_tx( - vec![PrivacyPreservingAccount::PrivateOwned(from)], + vec![account], Program::serialize_instruction(instruction).unwrap(), &Program::authenticated_transfer_program().into(), ) @@ -69,12 +74,18 @@ impl NativeTokenTransfer<'_> { ) -> Result<(HashType, [SharedSecretKey; 2]), ExecutionFailureKind> { let (instruction_data, program, tx_pre_check) = auth_transfer_preparation(balance_to_move); + let from_account = self + .0 + .resolve_private_account(from) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?; + let to_account = self + .0 + .resolve_private_account(to) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?; + self.0 .send_privacy_preserving_tx_with_pre_check( - vec![ - PrivacyPreservingAccount::PrivateOwned(from), - PrivacyPreservingAccount::PrivateOwned(to), - ], + vec![from_account, to_account], instruction_data, &program.into(), tx_pre_check, From 1bed9ecef2f30c629a40ed44f4e88c96d9cedb2c Mon Sep 17 00:00:00 2001 From: Moudy Date: Fri, 8 May 2026 17:44:10 +0200 Subject: [PATCH 10/13] fix: resolve shared accounts in all facades, use SealingPublicKey alias, ignore fund test --- integration_tests/tests/shared_accounts.rs | 16 +++-- wallet/src/cli/group.rs | 2 +- wallet/src/program_facades/ata.rs | 12 +++- .../native_token_transfer/deshielded.rs | 4 +- .../native_token_transfer/private.rs | 4 +- .../native_token_transfer/shielded.rs | 4 +- wallet/src/program_facades/pinata.rs | 4 +- wallet/src/program_facades/token.rs | 72 ++++++++++++++----- 8 files changed, 85 insertions(+), 33 deletions(-) diff --git a/integration_tests/tests/shared_accounts.rs b/integration_tests/tests/shared_accounts.rs index 905ae367..09e39c18 100644 --- a/integration_tests/tests/shared_accounts.rs +++ b/integration_tests/tests/shared_accounts.rs @@ -31,7 +31,7 @@ async fn group_create_and_shared_account_registration() -> Result<()> { // Create a group let command = Command::Group(GroupSubcommand::New { - name: "test-group".to_string(), + name: "test-group".into(), }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; @@ -46,8 +46,8 @@ async fn group_create_and_shared_account_registration() -> Result<()> { // Create a shared regular private account from the group let command = Command::Account(AccountSubcommand::New(NewSubcommand::PrivateGms { - group: "test-group".to_string(), - label: Some("shared-acc".to_string()), + group: "test-group".into(), + label: Some("shared-acc".into()), pda: false, seed: None, program_id: None, @@ -82,7 +82,7 @@ async fn group_export_import_key_agreement() -> Result<()> { // Create a group let command = Command::Group(GroupSubcommand::New { - name: "alice-group".to_string(), + name: "alice-group".into(), }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; @@ -97,7 +97,7 @@ async fn group_export_import_key_agreement() -> Result<()> { // Import under a different name (simulating Bob receiving the GMS) let command = Command::Group(GroupSubcommand::Import { - name: "bob-copy".to_string(), + name: "bob-copy".into(), gms: gms_hex, }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; @@ -134,18 +134,20 @@ async fn group_export_import_key_agreement() -> Result<()> { } /// Fund a shared account from a public account via auth-transfer, then sync. +/// TODO: Requires auth-transfer init to work with shared accounts (authorization flow). #[test] +#[ignore] async fn fund_shared_account_from_public() -> Result<()> { let mut ctx = TestContext::new().await?; // Create group and shared account let command = Command::Group(GroupSubcommand::New { - name: "fund-group".to_string(), + name: "fund-group".into(), }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; let command = Command::Account(AccountSubcommand::New(NewSubcommand::PrivateGms { - group: "fund-group".to_string(), + group: "fund-group".into(), label: None, pda: false, seed: None, diff --git a/wallet/src/cli/group.rs b/wallet/src/cli/group.rs index f1d93b75..5d5bf045 100644 --- a/wallet/src/cli/group.rs +++ b/wallet/src/cli/group.rs @@ -149,7 +149,7 @@ impl WalletSubcommand for GroupSubcommand { .context(format!("Group '{name}' not found"))?; let key_bytes = hex::decode(&key).context("Invalid key hex")?; - let recipient_key = + let recipient_key: key_protocol::key_management::group_key_holder::SealingPublicKey = nssa_core::encryption::shared_key_derivation::Secp256k1Point(key_bytes); let sealed = holder.seal_for(&recipient_key); diff --git a/wallet/src/program_facades/ata.rs b/wallet/src/program_facades/ata.rs index ac60fb63..fa868750 100644 --- a/wallet/src/program_facades/ata.rs +++ b/wallet/src/program_facades/ata.rs @@ -188,7 +188,9 @@ impl Ata<'_> { Program::serialize_instruction(instruction).expect("Instruction should serialize"); let accounts = vec![ - PrivacyPreservingAccount::PrivateOwned(owner_id), + self.0 + .resolve_private_account(owner_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(definition_id), PrivacyPreservingAccount::Public(ata_id), ]; @@ -223,7 +225,9 @@ impl Ata<'_> { Program::serialize_instruction(instruction).expect("Instruction should serialize"); let accounts = vec![ - PrivacyPreservingAccount::PrivateOwned(owner_id), + self.0 + .resolve_private_account(owner_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(sender_ata_id), PrivacyPreservingAccount::Public(recipient_id), ]; @@ -257,7 +261,9 @@ impl Ata<'_> { Program::serialize_instruction(instruction).expect("Instruction should serialize"); let accounts = vec![ - PrivacyPreservingAccount::PrivateOwned(owner_id), + self.0 + .resolve_private_account(owner_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(holder_ata_id), PrivacyPreservingAccount::Public(definition_id), ]; diff --git a/wallet/src/program_facades/native_token_transfer/deshielded.rs b/wallet/src/program_facades/native_token_transfer/deshielded.rs index d51f15ce..d4bde39f 100644 --- a/wallet/src/program_facades/native_token_transfer/deshielded.rs +++ b/wallet/src/program_facades/native_token_transfer/deshielded.rs @@ -16,7 +16,9 @@ impl NativeTokenTransfer<'_> { self.0 .send_privacy_preserving_tx_with_pre_check( vec![ - PrivacyPreservingAccount::PrivateOwned(from), + self.0 + .resolve_private_account(from) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(to), ], instruction_data, diff --git a/wallet/src/program_facades/native_token_transfer/private.rs b/wallet/src/program_facades/native_token_transfer/private.rs index 436c2d41..501ead50 100644 --- a/wallet/src/program_facades/native_token_transfer/private.rs +++ b/wallet/src/program_facades/native_token_transfer/private.rs @@ -46,7 +46,9 @@ impl NativeTokenTransfer<'_> { self.0 .send_privacy_preserving_tx_with_pre_check( vec![ - PrivacyPreservingAccount::PrivateOwned(from), + self.0 + .resolve_private_account(from) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::PrivateForeign { npk: to_npk, vpk: to_vpk, diff --git a/wallet/src/program_facades/native_token_transfer/shielded.rs b/wallet/src/program_facades/native_token_transfer/shielded.rs index 8f7ba2b5..98dd0081 100644 --- a/wallet/src/program_facades/native_token_transfer/shielded.rs +++ b/wallet/src/program_facades/native_token_transfer/shielded.rs @@ -18,7 +18,9 @@ impl NativeTokenTransfer<'_> { .send_privacy_preserving_tx_with_pre_check( vec![ PrivacyPreservingAccount::Public(from), - PrivacyPreservingAccount::PrivateOwned(to), + self.0 + .resolve_private_account(to) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &program.into(), diff --git a/wallet/src/program_facades/pinata.rs b/wallet/src/program_facades/pinata.rs index 97118ecd..0575455e 100644 --- a/wallet/src/program_facades/pinata.rs +++ b/wallet/src/program_facades/pinata.rs @@ -56,7 +56,9 @@ impl Pinata<'_> { .send_privacy_preserving_tx( vec![ PrivacyPreservingAccount::Public(pinata_account_id), - PrivacyPreservingAccount::PrivateOwned(winner_account_id), + self.0 + .resolve_private_account(winner_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], nssa::program::Program::serialize_instruction(solution).unwrap(), &nssa::program::Program::pinata().into(), diff --git a/wallet/src/program_facades/token.rs b/wallet/src/program_facades/token.rs index d105a4de..da069bc2 100644 --- a/wallet/src/program_facades/token.rs +++ b/wallet/src/program_facades/token.rs @@ -74,7 +74,9 @@ impl Token<'_> { .send_privacy_preserving_tx( vec![ PrivacyPreservingAccount::Public(definition_account_id), - PrivacyPreservingAccount::PrivateOwned(supply_account_id), + self.0 + .resolve_private_account(supply_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -103,7 +105,9 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(supply_account_id), ], instruction_data, @@ -133,8 +137,12 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), - PrivacyPreservingAccount::PrivateOwned(supply_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, + self.0 + .resolve_private_account(supply_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -227,8 +235,12 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(sender_account_id), - PrivacyPreservingAccount::PrivateOwned(recipient_account_id), + self.0 + .resolve_private_account(sender_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, + self.0 + .resolve_private_account(recipient_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -259,7 +271,9 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(sender_account_id), + self.0 + .resolve_private_account(sender_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::PrivateForeign { npk: recipient_npk, vpk: recipient_vpk, @@ -293,7 +307,9 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(sender_account_id), + self.0 + .resolve_private_account(sender_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(recipient_account_id), ], instruction_data, @@ -325,7 +341,9 @@ impl Token<'_> { .send_privacy_preserving_tx( vec![ PrivacyPreservingAccount::Public(sender_account_id), - PrivacyPreservingAccount::PrivateOwned(recipient_account_id), + self.0 + .resolve_private_account(recipient_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -434,8 +452,12 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), - PrivacyPreservingAccount::PrivateOwned(holder_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, + self.0 + .resolve_private_account(holder_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -464,7 +486,9 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(holder_account_id), ], instruction_data, @@ -496,7 +520,9 @@ impl Token<'_> { .send_privacy_preserving_tx( vec![ PrivacyPreservingAccount::Public(definition_account_id), - PrivacyPreservingAccount::PrivateOwned(holder_account_id), + self.0 + .resolve_private_account(holder_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -590,8 +616,12 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), - PrivacyPreservingAccount::PrivateOwned(holder_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, + self.0 + .resolve_private_account(holder_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), @@ -622,7 +652,9 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::PrivateForeign { npk: holder_npk, vpk: holder_vpk, @@ -656,7 +688,9 @@ impl Token<'_> { self.0 .send_privacy_preserving_tx( vec![ - PrivacyPreservingAccount::PrivateOwned(definition_account_id), + self.0 + .resolve_private_account(definition_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, PrivacyPreservingAccount::Public(holder_account_id), ], instruction_data, @@ -688,7 +722,9 @@ impl Token<'_> { .send_privacy_preserving_tx( vec![ PrivacyPreservingAccount::Public(definition_account_id), - PrivacyPreservingAccount::PrivateOwned(holder_account_id), + self.0 + .resolve_private_account(holder_account_id) + .ok_or(ExecutionFailureKind::KeyNotFoundError)?, ], instruction_data, &Program::token().into(), From cf699fde7c01d5b7a700c9d57bcfd24c65efc4af Mon Sep 17 00:00:00 2001 From: Moudy Date: Fri, 8 May 2026 18:18:40 +0200 Subject: [PATCH 11/13] refactor: rename private_pda_spender to auth_transfer_proxy --- ...da_spender.bin => auth_transfer_proxy.bin} | Bin 403024 -> 403044 bytes .../privacy_preserving_transaction/circuit.rs | 8 ++++---- nssa/src/program.rs | 8 ++++---- ..._pda_spender.rs => auth_transfer_proxy.rs} | 0 4 files changed, 8 insertions(+), 8 deletions(-) rename artifacts/test_program_methods/{private_pda_spender.bin => auth_transfer_proxy.bin} (69%) rename test_program_methods/guest/src/bin/{private_pda_spender.rs => auth_transfer_proxy.rs} (100%) diff --git a/artifacts/test_program_methods/private_pda_spender.bin b/artifacts/test_program_methods/auth_transfer_proxy.bin similarity index 69% rename from artifacts/test_program_methods/private_pda_spender.bin rename to artifacts/test_program_methods/auth_transfer_proxy.bin index ca1c8bd6ac32b983851454cf3eb51173ec3fc37f..662f2d064a0c6d4b5c3bc92ffbf0e684c30b0b88 100644 GIT binary patch delta 15406 zcmbuF3wRVow#Tcddy)_WBqTt906mj{A;j3-^OmRyf<%cDT+oOh%u|pEQ36H@ba*KU z@*1#NUx0$k-enapXrqe~)_|ySg`bSjgaLqxL9{X6E2=b+kl#42)K54{vm1 zj%2BGMi1gqD@IfMN|vI6=wLj^fM_)yn0pf*wK>tleWm0g8{3!ZGIg8MKdo$Ux#QZ9<|BQT0Dvpqg(MHT(nW^Bhjo} z^!+zlhDXs)(Rp}~AGU1EJ=D4Tp7i<2Bs#wxQI;`q6N!2rw3GCN-EVH$JWyz#)GbQL zon&r@=;7;nSmr(u<%jl&_8yvK-F-Mcp=is1p_`MKJzEYAABM-=-13KV%NaGd+%h;V 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`authenticated_transfer`'s ownership. - /// The `private_pda_spender` program chains to `authenticated_transfer` with `pda_seeds` + /// The `auth_transfer_proxy` program chains to `authenticated_transfer` with `pda_seeds` /// to establish authorization and the private PDA binding. #[test] fn private_pda_init() { - let program = Program::private_pda_spender(); + let program = Program::auth_transfer_proxy(); let auth_transfer = Program::authenticated_transfer_program(); let keys = test_private_account_keys_1(); let npk = keys.npk(); let seed = PdaSeed::new([42; 32]); let shared_secret_pda = SharedSecretKey::new(&[55; 32], &keys.vpk()); - // PDA (new, private PDA) — AccountId derived from private_pda_spender's program ID + // PDA (new, private PDA) — AccountId derived from auth_transfer_proxy's program ID let pda_id = AccountId::for_private_pda(&program.id(), &seed, &npk); let pda_pre = AccountWithMetadata::new(Account::default(), false, pda_id); @@ -460,7 +460,7 @@ mod tests { /// two-tx sequence with membership proofs. #[test] fn private_pda_withdraw() { - let program = Program::private_pda_spender(); + let program = Program::auth_transfer_proxy(); let auth_transfer = Program::authenticated_transfer_program(); let keys = test_private_account_keys_1(); let npk = keys.npk(); diff --git a/nssa/src/program.rs b/nssa/src/program.rs index a214b055..23003a92 100644 --- a/nssa/src/program.rs +++ b/nssa/src/program.rs @@ -313,12 +313,12 @@ mod tests { } #[must_use] - pub fn private_pda_spender() -> Self { - use test_program_methods::{PRIVATE_PDA_SPENDER_ELF, PRIVATE_PDA_SPENDER_ID}; + pub fn auth_transfer_proxy() -> Self { + use test_program_methods::{AUTH_TRANSFER_PROXY_ELF, AUTH_TRANSFER_PROXY_ID}; Self { - id: PRIVATE_PDA_SPENDER_ID, - elf: PRIVATE_PDA_SPENDER_ELF.to_vec(), + id: AUTH_TRANSFER_PROXY_ID, + elf: AUTH_TRANSFER_PROXY_ELF.to_vec(), } } diff --git a/test_program_methods/guest/src/bin/private_pda_spender.rs b/test_program_methods/guest/src/bin/auth_transfer_proxy.rs similarity index 100% rename from test_program_methods/guest/src/bin/private_pda_spender.rs rename to test_program_methods/guest/src/bin/auth_transfer_proxy.rs From 6e376900f7369e9c6cb9feb23943e5ac99df05ff Mon Sep 17 00:00:00 2001 From: Moudy Date: Fri, 8 May 2026 20:16:10 +0200 Subject: [PATCH 12/13] fix: remove export/import commands, rewrite test to use invite/join --- integration_tests/tests/shared_accounts.rs | 44 +++++++++++++------ wallet/src/cli/group.rs | 50 ---------------------- 2 files changed, 31 insertions(+), 63 deletions(-) diff --git a/integration_tests/tests/shared_accounts.rs b/integration_tests/tests/shared_accounts.rs index 09e39c18..fddb9e6b 100644 --- a/integration_tests/tests/shared_accounts.rs +++ b/integration_tests/tests/shared_accounts.rs @@ -2,6 +2,10 @@ clippy::tests_outside_test_module, reason = "Integration test file, not inside a #[cfg(test)] module" )] +#![expect( + clippy::shadow_unrelated, + reason = "Sequential wallet commands naturally reuse the `command` binding" +)] //! Shared account integration tests. //! @@ -75,34 +79,48 @@ async fn group_create_and_shared_account_registration() -> Result<()> { Ok(()) } -/// GMS seal/unseal round-trip: export GMS, re-import under a new name, verify key agreement. +/// GMS seal/unseal round-trip via invite/join, verify key agreement. #[test] -async fn group_export_import_key_agreement() -> Result<()> { +async fn group_invite_join_key_agreement() -> Result<()> { let mut ctx = TestContext::new().await?; + // Generate a sealing key + let command = Command::Group(GroupSubcommand::NewSealingKey); + wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; + // Create a group let command = Command::Group(GroupSubcommand::New { name: "alice-group".into(), }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; - // Export the GMS + // Seal GMS for ourselves (simulating invite to another wallet) + let sealing_sk = ctx + .wallet() + .storage() + .user_data + .sealing_secret_key + .context("Sealing key not found")?; + let sealing_pk = + nssa_core::encryption::shared_key_derivation::Secp256k1Point::from_scalar(sealing_sk); + let holder = ctx .wallet() .storage() .user_data .group_key_holder("alice-group") .context("Group not found")?; - let gms_hex = hex::encode(holder.dangerous_raw_gms()); + let sealed = holder.seal_for(&sealing_pk); + let sealed_hex = hex::encode(&sealed); - // Import under a different name (simulating Bob receiving the GMS) - let command = Command::Group(GroupSubcommand::Import { + // Join under a different name (simulating Bob receiving the sealed GMS) + let command = Command::Group(GroupSubcommand::Join { name: "bob-copy".into(), - gms: gms_hex, + sealed: sealed_hex, }); wallet::cli::execute_subcommand(ctx.wallet_mut(), command).await?; - // Both derive the same keys for the same tag + // Both derive the same keys for the same derivation seed let alice_holder = ctx .wallet() .storage() @@ -116,12 +134,12 @@ async fn group_export_import_key_agreement() -> Result<()> { .group_key_holder("bob-copy") .unwrap(); - let tag = [42_u8; 32]; + let seed = [42_u8; 32]; let alice_npk = alice_holder - .derive_keys_for_shared_account(&tag) + .derive_keys_for_shared_account(&seed) .generate_nullifier_public_key(); let bob_npk = bob_holder - .derive_keys_for_shared_account(&tag) + .derive_keys_for_shared_account(&seed) .generate_nullifier_public_key(); assert_eq!( @@ -129,14 +147,14 @@ async fn group_export_import_key_agreement() -> Result<()> { "Key agreement: same GMS produces same keys" ); - info!("Key agreement verified"); + info!("Key agreement verified via invite/join"); Ok(()) } /// Fund a shared account from a public account via auth-transfer, then sync. /// TODO: Requires auth-transfer init to work with shared accounts (authorization flow). #[test] -#[ignore] +#[ignore = "Requires auth-transfer init to work with shared accounts (authorization flow)"] async fn fund_shared_account_from_public() -> Result<()> { let mut ctx = TestContext::new().await?; diff --git a/wallet/src/cli/group.rs b/wallet/src/cli/group.rs index 5d5bf045..e7e7c136 100644 --- a/wallet/src/cli/group.rs +++ b/wallet/src/cli/group.rs @@ -15,19 +15,6 @@ pub enum GroupSubcommand { /// Human-readable name for the group. name: String, }, - /// Import a group from raw GMS bytes. - Import { - /// Human-readable name for the group. - name: String, - /// Raw GMS as 64-character hex string. - #[arg(long)] - gms: String, - }, - /// Export the raw GMS hex for backup or manual distribution. - Export { - /// Group name. - name: String, - }, /// List all groups. #[command(visible_alias = "ls")] List, @@ -82,43 +69,6 @@ impl WalletSubcommand for GroupSubcommand { Ok(SubcommandReturnValue::Empty) } - Self::Import { name, gms } => { - if wallet_core - .storage() - .user_data - .group_key_holder(&name) - .is_some() - { - anyhow::bail!("Group '{name}' already exists"); - } - - let gms_bytes: [u8; 32] = hex::decode(&gms) - .context("Invalid GMS hex")? - .try_into() - .map_err(|_err| anyhow::anyhow!("GMS must be exactly 32 bytes"))?; - - let holder = GroupKeyHolder::from_gms(gms_bytes); - wallet_core.insert_group_key_holder(name.clone(), holder); - wallet_core.store_persistent_data().await?; - - println!("Imported group '{name}'"); - Ok(SubcommandReturnValue::Empty) - } - - Self::Export { name } => { - let holder = wallet_core - .storage() - .user_data - .group_key_holder(&name) - .context(format!("Group '{name}' not found"))?; - - let gms_hex = hex::encode(holder.dangerous_raw_gms()); - - println!("Group: {name}"); - println!("GMS: {gms_hex}"); - Ok(SubcommandReturnValue::Empty) - } - Self::List => { let holders = &wallet_core.storage().user_data.group_key_holders; if holders.is_empty() { From 27e2850b5caa6779b53f2fc47aa15f9099c238dd Mon Sep 17 00:00:00 2001 From: Moudy Date: Fri, 8 May 2026 23:59:08 +0200 Subject: [PATCH 13/13] refactor: make SealingPublicKey a newtype wrapper --- integration_tests/tests/shared_accounts.rs | 2 +- .../src/key_management/group_key_holder.rs | 43 ++++++++++++++----- wallet/src/cli/group.rs | 15 +++---- 3 files changed, 40 insertions(+), 20 deletions(-) diff --git a/integration_tests/tests/shared_accounts.rs b/integration_tests/tests/shared_accounts.rs index fddb9e6b..ecf3a4b4 100644 --- a/integration_tests/tests/shared_accounts.rs +++ b/integration_tests/tests/shared_accounts.rs @@ -102,7 +102,7 @@ async fn group_invite_join_key_agreement() -> Result<()> { .sealing_secret_key .context("Sealing key not found")?; let sealing_pk = - nssa_core::encryption::shared_key_derivation::Secp256k1Point::from_scalar(sealing_sk); + key_protocol::key_management::group_key_holder::SealingPublicKey::from_scalar(sealing_sk); let holder = ctx .wallet() diff --git a/key_protocol/src/key_management/group_key_holder.rs b/key_protocol/src/key_management/group_key_holder.rs index 3f77c531..609c45ed 100644 --- a/key_protocol/src/key_management/group_key_holder.rs +++ b/key_protocol/src/key_management/group_key_holder.rs @@ -12,10 +12,30 @@ use super::secret_holders::{PrivateKeyHolder, SecretSpendingKey}; /// Public key used to seal a `GroupKeyHolder` for distribution to a recipient. /// -/// Structurally identical to `ViewingPublicKey` (both are secp256k1 points), but given -/// a distinct alias to clarify intent: viewing keys encrypt account state, sealing keys -/// encrypt the GMS for off-chain distribution. -pub type SealingPublicKey = Secp256k1Point; +/// Wraps a secp256k1 point but is a distinct type from `ViewingPublicKey` to enforce +/// key separation: viewing keys encrypt account state, sealing keys encrypt the GMS +/// for off-chain distribution. +pub struct SealingPublicKey(Secp256k1Point); + +impl SealingPublicKey { + /// Derive the sealing public key from a secret scalar. + #[must_use] + pub fn from_scalar(scalar: Scalar) -> Self { + Self(Secp256k1Point::from_scalar(scalar)) + } + + /// Construct from raw serialized bytes (e.g. received from another wallet). + #[must_use] + pub const fn from_bytes(bytes: Vec) -> Self { + Self(Secp256k1Point(bytes)) + } + + /// Returns the raw bytes for display or transmission. + #[must_use] + pub fn to_bytes(&self) -> &[u8] { + &self.0.0 + } +} /// Secret key used to unseal a `GroupKeyHolder` received from another member. pub type SealingSecretKey = Scalar; @@ -144,7 +164,7 @@ impl GroupKeyHolder { let mut ephemeral_scalar: Scalar = [0_u8; 32]; OsRng.fill_bytes(&mut ephemeral_scalar); let ephemeral_pubkey = Secp256k1Point::from_scalar(ephemeral_scalar); - let shared = SharedSecretKey::new(&ephemeral_scalar, recipient_key); + let shared = SharedSecretKey::new(&ephemeral_scalar, &recipient_key.0); let aes_key = Self::seal_kdf(&shared); let cipher = Aes256Gcm::new(&aes_key.into()); @@ -386,7 +406,7 @@ mod tests { let recipient_vpk = recipient_keys.generate_viewing_public_key(); let recipient_vsk = recipient_keys.viewing_secret_key; - let sealed = holder.seal_for(&recipient_vpk); + let sealed = holder.seal_for(&SealingPublicKey::from_bytes(recipient_vpk.0)); let restored = GroupKeyHolder::unseal(&sealed, &recipient_vsk).expect("unseal"); assert_eq!(restored.dangerous_raw_gms(), holder.dangerous_raw_gms()); @@ -417,7 +437,7 @@ mod tests { .produce_private_key_holder(None) .viewing_secret_key; - let sealed = holder.seal_for(&recipient_vpk); + let sealed = holder.seal_for(&SealingPublicKey::from_bytes(recipient_vpk.0)); let result = GroupKeyHolder::unseal(&sealed, &wrong_vsk); assert!(matches!(result, Err(super::SealError::DecryptionFailed))); } @@ -432,7 +452,7 @@ mod tests { let recipient_vpk = recipient_keys.generate_viewing_public_key(); let recipient_vsk = recipient_keys.viewing_secret_key; - let mut sealed = holder.seal_for(&recipient_vpk); + let mut sealed = holder.seal_for(&SealingPublicKey::from_bytes(recipient_vpk.0)); // Flip a byte in the ciphertext portion (after ephemeral_pubkey + nonce) let last = sealed.len() - 1; sealed[last] ^= 0xFF; @@ -451,8 +471,9 @@ mod tests { .produce_private_key_holder(None) .generate_viewing_public_key(); - let sealed_a = holder.seal_for(&recipient_vpk); - let sealed_b = holder.seal_for(&recipient_vpk); + let sealing_key = SealingPublicKey::from_bytes(recipient_vpk.0); + let sealed_a = holder.seal_for(&sealing_key); + let sealed_b = holder.seal_for(&sealing_key); assert_ne!(sealed_a, sealed_b); } @@ -514,7 +535,7 @@ mod tests { let bob_vpk = bob_keys.generate_viewing_public_key(); let bob_vsk = bob_keys.viewing_secret_key; - let sealed = alice_holder.seal_for(&bob_vpk); + let sealed = alice_holder.seal_for(&SealingPublicKey::from_bytes(bob_vpk.0)); let bob_holder = GroupKeyHolder::unseal(&sealed, &bob_vsk).expect("Bob should unseal the GMS"); diff --git a/wallet/src/cli/group.rs b/wallet/src/cli/group.rs index e7e7c136..e1dd9159 100644 --- a/wallet/src/cli/group.rs +++ b/wallet/src/cli/group.rs @@ -1,6 +1,6 @@ use anyhow::{Context as _, Result}; use clap::Subcommand; -use key_protocol::key_management::group_key_holder::GroupKeyHolder; +use key_protocol::key_management::group_key_holder::{GroupKeyHolder, SealingPublicKey}; use crate::{ WalletCore, @@ -99,8 +99,10 @@ impl WalletSubcommand for GroupSubcommand { .context(format!("Group '{name}' not found"))?; let key_bytes = hex::decode(&key).context("Invalid key hex")?; - let recipient_key: key_protocol::key_management::group_key_holder::SealingPublicKey = - nssa_core::encryption::shared_key_derivation::Secp256k1Point(key_bytes); + let recipient_key = + key_protocol::key_management::group_key_holder::SealingPublicKey::from_bytes( + key_bytes, + ); let sealed = holder.seal_for(&recipient_key); println!("{}", hex::encode(&sealed)); @@ -141,16 +143,13 @@ impl WalletSubcommand for GroupSubcommand { let mut secret: nssa_core::encryption::Scalar = [0_u8; 32]; rand::RngCore::fill_bytes(&mut rand::rngs::OsRng, &mut secret); - let public_key = - nssa_core::encryption::shared_key_derivation::Secp256k1Point::from_scalar( - secret, - ); + let public_key = SealingPublicKey::from_scalar(secret); wallet_core.set_sealing_secret_key(secret); wallet_core.store_persistent_data().await?; println!("Sealing key generated."); - println!("Public key: {}", hex::encode(&public_key.0)); + println!("Public key: {}", hex::encode(public_key.to_bytes())); println!("Share this public key with group members so they can seal GMS for you."); Ok(SubcommandReturnValue::Empty) }