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replace npk for account id in commitment and init nullifier formulas

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This commit is contained in:
Sergio Chouhy
2026-04-14 23:45:34 -03:00
parent 12b8c0ad31
commit a4af8da13b
43 changed files with 148 additions and 97 deletions
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program_methods/guest/src/bin/privacy_preserving_circuit.rs
+14 -12
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@@ -4,9 +4,9 @@ use std::{
};
use nssa_core::{
Commitment, CommitmentSetDigest, DUMMY_COMMITMENT_HASH, EncryptionScheme, MembershipProof,
Nullifier, NullifierPublicKey, NullifierSecretKey, PrivacyPreservingCircuitInput,
PrivacyPreservingCircuitOutput, SharedSecretKey,
Commitment, CommitmentSetDigest, DUMMY_COMMITMENT_HASH, EncryptionScheme, Identifier,
MembershipProof, Nullifier, NullifierPublicKey, NullifierSecretKey,
PrivacyPreservingCircuitInput, PrivacyPreservingCircuitOutput, SharedSecretKey,
account::{Account, AccountId, AccountWithMetadata, Nonce},
compute_digest_for_path,
program::{
@@ -302,7 +302,7 @@ impl ExecutionState {
fn compute_circuit_output(
execution_state: ExecutionState,
visibility_mask: &[u8],
private_account_keys: &[(NullifierPublicKey, SharedSecretKey)],
private_account_keys: &[(NullifierPublicKey, Identifier, SharedSecretKey)],
private_account_nsks: &[NullifierSecretKey],
private_account_membership_proofs: &[Option<MembershipProof>],
) -> PrivacyPreservingCircuitOutput {
@@ -338,12 +338,14 @@ fn compute_circuit_output(
output.public_post_states.push(post_state);
}
1 | 2 => {
let Some((npk, shared_secret)) = private_keys_iter.next() else {
let Some((npk, identifier, shared_secret)) = private_keys_iter.next() else {
panic!("Missing private account key");
};
let account_id = AccountId::from((npk, *identifier));
assert_eq!(
AccountId::from((npk, 0)),
account_id,
pre_state.account_id,
"AccountId mismatch"
);
@@ -375,7 +377,7 @@ fn compute_circuit_output(
let new_nullifier = compute_nullifier_and_set_digest(
membership_proof_opt.as_ref(),
&pre_state.account,
npk,
&account_id,
nsk,
);
@@ -405,7 +407,7 @@ fn compute_circuit_output(
"Membership proof must be None for unauthorized accounts"
);
let nullifier = Nullifier::for_account_initialization(npk);
let nullifier = Nullifier::for_account_initialization(&account_id);
let new_nonce = Nonce::private_account_nonce_init(npk);
@@ -418,7 +420,7 @@ fn compute_circuit_output(
post_with_updated_nonce.nonce = new_nonce;
// Compute commitment
let commitment_post = Commitment::new(npk, &post_with_updated_nonce);
let commitment_post = Commitment::new(&account_id, &post_with_updated_nonce);
// Encrypt and push post state
let encrypted_account = EncryptionScheme::encrypt(
@@ -459,7 +461,7 @@ fn compute_circuit_output(
fn compute_nullifier_and_set_digest(
membership_proof_opt: Option<&MembershipProof>,
pre_account: &Account,
npk: &NullifierPublicKey,
account_id: &AccountId,
nsk: &NullifierSecretKey,
) -> (Nullifier, CommitmentSetDigest) {
membership_proof_opt.as_ref().map_or_else(
@@ -471,12 +473,12 @@ fn compute_nullifier_and_set_digest(
);
// Compute initialization nullifier
let nullifier = Nullifier::for_account_initialization(npk);
let nullifier = Nullifier::for_account_initialization(account_id);
(nullifier, DUMMY_COMMITMENT_HASH)
},
|membership_proof| {
// Compute commitment set digest associated with provided auth path
let commitment_pre = Commitment::new(npk, pre_account);
let commitment_pre = Commitment::new(account_id, pre_account);
let set_digest = compute_digest_for_path(&commitment_pre, membership_proof);
// Compute update nullifier