fix tests

integration_tests/tests/auth_transfer/private.rs

@@ -341,7 +341,7 @@ async fn private_transfer_to_owned_account_continuous_run_path() -> Result<()> {
     };
 
     // Get the newly created account's keys
-    let (to_keys, _, _) = ctx
+    let (to_keys, _, to_identifier) = ctx
         .wallet()
         .storage()
         .user_data
@@ -356,7 +356,7 @@ async fn private_transfer_to_owned_account_continuous_run_path() -> Result<()> {
         to_label: None,
         to_npk: Some(hex::encode(to_keys.nullifier_public_key.0)),
         to_vpk: Some(hex::encode(to_keys.viewing_public_key.0)),
-        to_identifier: 0,
+        to_identifier,
         amount: 100,
     });
 

integration_tests/tests/token.rs

@@ -1139,7 +1139,7 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> {
     };
 
     // Get keys for foreign mint (claiming path)
-    let (holder_keys, _, _) = ctx
+    let (holder_keys, _, holder_identifier) = ctx
         .wallet()
         .storage()
         .user_data
@@ -1155,7 +1155,7 @@ async fn token_claiming_path_with_private_accounts() -> Result<()> {
         holder_label: None,
         holder_npk: Some(hex::encode(holder_keys.nullifier_public_key.0)),
         holder_vpk: Some(hex::encode(holder_keys.viewing_public_key.0)),
-        holder_identifier: 0,
+        holder_identifier,
         amount: mint_amount,
     };
 

integration_tests/tests/wallet_ffi.rs

@@ -48,6 +48,11 @@ unsafe extern "C" {
         out_account_id: *mut FfiBytes32,
     ) -> error::WalletFfiError;
 
+    fn wallet_ffi_create_account_private(
+        handle: *mut WalletHandle,
+        out_account_id: *mut FfiBytes32,
+    ) -> error::WalletFfiError;
+
     fn wallet_ffi_create_private_accounts_key(
         handle: *mut WalletHandle,
         out_keys: *mut FfiPrivateAccountKeys,
@@ -684,14 +689,11 @@ fn wallet_ffi_init_private_account_auth_transfer() -> Result<()> {
     let home = tempfile::tempdir()?;
     let wallet_ffi_handle = new_wallet_ffi_with_test_context_config(&ctx, home.path())?;
 
-    // Create a new receiving key and derive account_id for identifier=0
-    let out_account_id: FfiBytes32 = unsafe {
-        let mut out_keys = FfiPrivateAccountKeys::default();
-        wallet_ffi_create_private_accounts_key(wallet_ffi_handle, &raw mut out_keys);
-        let account_id = nssa::AccountId::from((&out_keys.npk(), 0_u128));
-        wallet_ffi_free_private_account_keys(&raw mut out_keys);
-        (&account_id).into()
-    };
+    // Create a new private account
+    let mut out_account_id = FfiBytes32::default();
+    unsafe {
+        wallet_ffi_create_account_private(wallet_ffi_handle, &raw mut out_account_id);
+    }
 
     // Call the init function
     let mut transfer_result = FfiTransferResult::default();

key_protocol/src/key_management/key_tree/mod.rs

@@ -533,25 +533,49 @@ mod tests {
             .key_map
             .get_mut(&ChainIndex::from_str("/1").unwrap())
             .unwrap();
-        acc.value.1.push((0, nssa::Account { balance: 2, ..nssa::Account::default() }));
+        acc.value.1.push((
+            0,
+            nssa::Account {
+                balance: 2,
+                ..nssa::Account::default()
+            },
+        ));
 
         let acc = tree
             .key_map
             .get_mut(&ChainIndex::from_str("/2").unwrap())
             .unwrap();
-        acc.value.1.push((0, nssa::Account { balance: 3, ..nssa::Account::default() }));
+        acc.value.1.push((
+            0,
+            nssa::Account {
+                balance: 3,
+                ..nssa::Account::default()
+            },
+        ));
 
         let acc = tree
             .key_map
             .get_mut(&ChainIndex::from_str("/0/1").unwrap())
             .unwrap();
-        acc.value.1.push((0, nssa::Account { balance: 5, ..nssa::Account::default() }));
+        acc.value.1.push((
+            0,
+            nssa::Account {
+                balance: 5,
+                ..nssa::Account::default()
+            },
+        ));
 
         let acc = tree
             .key_map
             .get_mut(&ChainIndex::from_str("/1/0").unwrap())
             .unwrap();
-        acc.value.1.push((0, nssa::Account { balance: 6, ..nssa::Account::default() }));
+        acc.value.1.push((
+            0,
+            nssa::Account {
+                balance: 6,
+                ..nssa::Account::default()
+            },
+        ));
 
         // Update account_id_map for nodes that now have entries
         for chain_index_str in ["/1", "/2", "/0/1", "/1/0"] {

key_protocol/src/key_management/mod.rs

@@ -174,7 +174,13 @@ mod tests {
         // /2
         let second_chain_index = key_tree_private.generate_new_node_layered().unwrap();
 
-        key_tree_private.key_map.get(&second_chain_index).expect("Node was just inserted").value.0.clone()
+        key_tree_private
+            .key_map
+            .get(&second_chain_index)
+            .expect("Node was just inserted")
+            .value
+            .0
+            .clone()
     }
 
     #[test]

wallet-ffi/src/account.rs

@@ -62,6 +62,56 @@ pub unsafe extern "C" fn wallet_ffi_create_account_public(
     WalletFfiError::Success
 }
 
+/// Create a new private account, storing a default account entry in local storage.
+///
+/// This is the private-account equivalent of `wallet_ffi_create_account_public`.
+/// It generates a key node, assigns a random identifier, and inserts a default
+/// account record so the account can immediately be used with
+/// `wallet_ffi_register_private_account`.
+///
+/// # Parameters
+/// - `handle`: Valid wallet handle
+/// - `out_account_id`: Output pointer for the new account ID (32 bytes)
+///
+/// # Returns
+/// - `Success` on successful creation
+/// - Error code on failure
+///
+/// # Safety
+/// - `handle` must be a valid wallet handle from `wallet_ffi_create_new` or `wallet_ffi_open`
+/// - `out_account_id` must be a valid pointer to a `FfiBytes32` struct
+#[no_mangle]
+pub unsafe extern "C" fn wallet_ffi_create_account_private(
+    handle: *mut WalletHandle,
+    out_account_id: *mut FfiBytes32,
+) -> WalletFfiError {
+    let wrapper = match get_wallet(handle) {
+        Ok(w) => w,
+        Err(e) => return e,
+    };
+
+    if out_account_id.is_null() {
+        print_error("Null output pointer for account_id");
+        return WalletFfiError::NullPointer;
+    }
+
+    let mut wallet = match wrapper.core.lock() {
+        Ok(w) => w,
+        Err(e) => {
+            print_error(format!("Failed to lock wallet: {e}"));
+            return WalletFfiError::InternalError;
+        }
+    };
+
+    let (account_id, _chain_index) = wallet.create_new_account_private(None);
+
+    unsafe {
+        (*out_account_id).data = *account_id.value();
+    }
+
+    WalletFfiError::Success
+}
+
 /// Create a new private key node.
 ///
 /// Returns the nullifier public key (npk) and viewing public key (vpk) to share with

wallet-ffi/wallet_ffi.h

@@ -242,6 +242,29 @@ typedef struct FfiTransferResult {
 enum WalletFfiError wallet_ffi_create_account_public(struct WalletHandle *handle,
                                                      struct FfiBytes32 *out_account_id);
 
+/**
+ * Create a new private account, storing a default account entry in local storage.
+ *
+ * This is the private-account equivalent of `wallet_ffi_create_account_public`.
+ * It generates a key node, assigns a random identifier, and inserts a default
+ * account record so the account can immediately be used with
+ * `wallet_ffi_register_private_account`.
+ *
+ * # Parameters
+ * - `handle`: Valid wallet handle
+ * - `out_account_id`: Output pointer for the new account ID (32 bytes)
+ *
+ * # Returns
+ * - `Success` on successful creation
+ * - Error code on failure
+ *
+ * # Safety
+ * - `handle` must be a valid wallet handle from `wallet_ffi_create_new` or `wallet_ffi_open`
+ * - `out_account_id` must be a valid pointer to a `FfiBytes32` struct
+ */
+enum WalletFfiError wallet_ffi_create_account_private(struct WalletHandle *handle,
+                                                      struct FfiBytes32 *out_account_id);
+
 /**
  * Create a new private key node.
  *