feat: Pedersen in typescript.

barretenberg/cpp/scripts/bb-tests.sh

@@ -17,6 +17,8 @@ TESTS=(
   crypto_ecdsa_tests
   crypto_schnorr_tests
   crypto_sha256_tests
+  crypto_pedersen_commitment_tests
+  crypto_pedersen_hash_tests
   ecc_tests
   numeric_tests
   plonk_tests

barretenberg/cpp/src/barretenberg/crypto/pedersen_commitment/pedersen.test.cpp

@@ -0,0 +1,19 @@
+#include "pedersen.hpp"
+#include "barretenberg/crypto/generators/generator_data.hpp"
+#include <gtest/gtest.h>
+
+namespace crypto {
+
+using barretenberg::fr;
+
+TEST(Pedersen, Commitment)
+{
+    auto x = pedersen_commitment::Fq::one();
+    auto r = pedersen_commitment::commit_native({ x, x });
+    auto expected =
+        grumpkin::g1::affine_element(fr(uint256_t("2f7a8f9a6c96926682205fb73ee43215bf13523c19d7afe36f12760266cdfe15")),
+                                     fr(uint256_t("01916b316adbbf0e10e39b18c1d24b33ec84b46daddf72f43878bcc92b6057e6")));
+    EXPECT_EQ(r, expected);
+}
+
+} // namespace crypto

barretenberg/cpp/src/barretenberg/crypto/pedersen_hash/c_bind.cpp

@@ -9,7 +9,7 @@ WASM_EXPORT void pedersen__hash_with_hash_index(uint8_t const* inputs_buffer, ui
 {
     std::vector<grumpkin::fq> to_hash;
     read(inputs_buffer, to_hash);
-    crypto::GeneratorContext<curve::Grumpkin> ctx; // todo fix
+    crypto::GeneratorContext<curve::Grumpkin> ctx;
     ctx.offset = static_cast<size_t>(hash_index);
     auto r = crypto::pedersen_hash::hash(to_hash, ctx);
     barretenberg::fr::serialize_to_buffer(r, output);

barretenberg/cpp/src/barretenberg/crypto/pedersen_hash/pedersen.test.cpp

@@ -0,0 +1,24 @@
+#include "pedersen.hpp"
+#include "barretenberg/crypto/generators/generator_data.hpp"
+#include "barretenberg/numeric/uint256/uint256.hpp"
+#include <gtest/gtest.h>
+
+namespace crypto {
+
+using barretenberg::fr;
+
+TEST(Pedersen, Hash)
+{
+    auto x = pedersen_hash::Fq::one();
+    auto r = pedersen_hash::hash({ x, x });
+    EXPECT_EQ(r, fr(uint256_t("07ebfbf4df29888c6cd6dca13d4bb9d1a923013ddbbcbdc3378ab8845463297b")));
+}
+
+TEST(Pedersen, HashWithIndex)
+{
+    auto x = pedersen_hash::Fq::one();
+    auto r = pedersen_hash::hash({ x, x }, 5);
+    EXPECT_EQ(r, fr(uint256_t("1c446df60816b897cda124524e6b03f36df0cec333fad87617aab70d7861daa6")));
+}
+
+} // namespace crypto

yarn-project/foundation/package.json

@@ -56,6 +56,7 @@
   },
   "dependencies": {
     "@koa/cors": "^4.0.0",
+    "@noble/curves": "^1.2.0",
     "debug": "^4.3.4",
     "detect-node": "^2.1.0",
     "hash.js": "^1.1.7",

yarn-project/foundation/src/crypto/pedersen/index.test.ts

@@ -0,0 +1,22 @@
+import { toBufferBE } from '../../bigint-buffer/index.js';
+import { pedersenCommit, pedersenHashWithHashIndex } from './index.js';
+
+describe('pedersen', () => {
+  it('pedersen commit', () => {
+    const r = pedersenCommit([toBufferBE(1n, 32), toBufferBE(1n, 32)]);
+    expect(r).toEqual([
+      Buffer.from('2f7a8f9a6c96926682205fb73ee43215bf13523c19d7afe36f12760266cdfe15', 'hex'),
+      Buffer.from('01916b316adbbf0e10e39b18c1d24b33ec84b46daddf72f43878bcc92b6057e6', 'hex'),
+    ]);
+  });
+
+  it('pedersen hash', () => {
+    const r = pedersenHashWithHashIndex([toBufferBE(1n, 32), toBufferBE(1n, 32)]);
+    expect(r).toEqual(Buffer.from('07ebfbf4df29888c6cd6dca13d4bb9d1a923013ddbbcbdc3378ab8845463297b', 'hex'));
+  });
+
+  it('pedersen hash with index', () => {
+    const r = pedersenHashWithHashIndex([toBufferBE(1n, 32), toBufferBE(1n, 32)], 5);
+    expect(r).toEqual(Buffer.from('1c446df60816b897cda124524e6b03f36df0cec333fad87617aab70d7861daa6', 'hex'));
+  });
+});