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fix: Use async poseidon #20826

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Merged
PhilWindle merged 1 commit into from
Feb 24, 2026
Merged

fix: Use async poseidon #20826

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4 changes: 2 additions & 2 deletions yarn-project/foundation/src/crypto/poseidon/index.test.ts
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
import { BarretenbergSync } from '@aztec/bb.js';
import { Barretenberg } from '@aztec/bb.js';

import { Fr } from '../../curves/bn254/field.js';
import { poseidon2Permutation } from './index.js';

describe('poseidon2Permutation', () => {
beforeAll(async () => {
await BarretenbergSync.initSingleton({ threads: 1 });
await Barretenberg.initSingleton({ threads: 1 });
});

it('test vectors from cpp should match', async () => {
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26 changes: 13 additions & 13 deletions yarn-project/foundation/src/crypto/poseidon/index.ts
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { BarretenbergSync } from '@aztec/bb.js';
import { Barretenberg } from '@aztec/bb.js';

import { Fr } from '../../curves/bn254/field.js';
import { type Fieldable, serializeToFields } from '../../serialize/serialize.js';
Expand All @@ -10,9 +10,9 @@ import { type Fieldable, serializeToFields } from '../../serialize/serialize.js'
*/
export async function poseidon2Hash(input: Fieldable[]): Promise<Fr> {
const inputFields = serializeToFields(input);
await BarretenbergSync.initSingleton();
const api = BarretenbergSync.getSingleton();
const response = api.poseidon2Hash({
await Barretenberg.initSingleton();
const api = Barretenberg.getSingleton();
const response = await api.poseidon2Hash({
inputs: inputFields.map(i => i.toBuffer()),
});
return Fr.fromBuffer(Buffer.from(response.hash));
Expand All @@ -27,9 +27,9 @@ export async function poseidon2Hash(input: Fieldable[]): Promise<Fr> {
export async function poseidon2HashWithSeparator(input: Fieldable[], separator: number): Promise<Fr> {
const inputFields = serializeToFields(input);
inputFields.unshift(new Fr(separator));
await BarretenbergSync.initSingleton();
const api = BarretenbergSync.getSingleton();
const response = api.poseidon2Hash({
await Barretenberg.initSingleton();
const api = Barretenberg.getSingleton();
const response = await api.poseidon2Hash({
inputs: inputFields.map(i => i.toBuffer()),
});
return Fr.fromBuffer(Buffer.from(response.hash));
Expand All @@ -44,9 +44,9 @@ export async function poseidon2Permutation(input: Fieldable[]): Promise<Fr[]> {
const inputFields = serializeToFields(input);
// We'd like this assertion but it's not possible to use it in the browser.
// assert(input.length === 4, 'Input state must be of size 4');
await BarretenbergSync.initSingleton();
const api = BarretenbergSync.getSingleton();
const response = api.poseidon2Permutation({
await Barretenberg.initSingleton();
const api = Barretenberg.getSingleton();
const response = await api.poseidon2Permutation({
inputs: inputFields.map(i => i.toBuffer()),
});
// We'd like this assertion but it's not possible to use it in the browser.
Expand All @@ -65,9 +65,9 @@ export async function poseidon2HashBytes(input: Buffer): Promise<Fr> {
inputFields.push(Fr.fromBuffer(fieldBytes));
}

await BarretenbergSync.initSingleton();
const api = BarretenbergSync.getSingleton();
const response = api.poseidon2Hash({
await Barretenberg.initSingleton();
const api = Barretenberg.getSingleton();
const response = await api.poseidon2Hash({
inputs: inputFields.map(i => i.toBuffer()),
});

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