Initial rebrand: @polkadot -> @pezkuwi (14 packages)

- Package namespace: @polkadot/* -> @pezkuwi/*
- Repository: polkadot-js/common -> pezkuwichain/pezkuwi-common
- Author: Pezkuwi Team <team@pezkuwichain.io>

Core packages:
- @pezkuwi/util (utilities)
- @pezkuwi/util-crypto (crypto primitives)
- @pezkuwi/keyring (account management)
- @pezkuwi/networks (chain metadata)
- @pezkuwi/hw-ledger (Ledger hardware wallet)
- @pezkuwi/x-* (10 polyfill packages)

Total: 14 packages
Upstream: polkadot-js/common v14.0.1

packages/util-crypto/src/hd/ethereum/index.spec.ts

@@ -0,0 +1,54 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import { mnemonicToLegacySeed } from '@pezkuwi/util-crypto';
+
+import { hdEthereum } from './index.js';
+
+describe('hdEthereum', (): void => {
+  const PHRASE = 'seed sock milk update focus rotate barely fade car face mechanic mercy';
+  const derivationPath = 'm/44\'/60\'/0\'/0/0';
+  const PUBLIC = new Uint8Array([
+    3, 118, 64, 77, 247, 27, 4, 157,
+    236, 206, 251, 221, 230, 244, 154, 147,
+    189, 131, 249, 169, 102, 78, 3, 185,
+    153, 19, 89, 40, 24, 25, 139, 131,
+    93
+  ]);
+  const SECRET = new Uint8Array([
+    166, 162, 203, 17, 2, 206, 110, 176,
+    18, 102, 230, 144, 90, 158, 25, 232,
+    43, 180, 176, 49, 189, 149, 3, 71,
+    243, 228, 223, 104, 125, 132, 58, 228
+  ]
+  );
+  const PUBLICDERIVED = new Uint8Array([
+    3, 129, 53, 27, 27, 70, 210, 96,
+    43, 9, 146, 187, 93, 85, 49, 249,
+    193, 105, 107, 8, 18, 254, 178, 83,
+    75, 104, 132, 173, 196, 126, 46, 29,
+    139
+  ]);
+  const SECRETDERIVED = new Uint8Array([
+    7, 13, 195, 17, 115, 0, 1, 25,
+    24, 226, 107, 2, 23, 105, 69, 204,
+    21, 195, 213, 72, 207, 73, 253, 132,
+    24, 217, 127, 147, 175, 105, 158, 70
+  ]);
+
+  it('derives the right key pair from a mnemonic', (): void => {
+    const key = hdEthereum(mnemonicToLegacySeed(PHRASE, '', false, 64));
+
+    expect(key.publicKey).toEqual(PUBLIC);
+    expect(key.secretKey).toEqual(SECRET);
+  });
+
+  it('derives the right key pair from a mnemonic and a derivation path', (): void => {
+    const key = hdEthereum(mnemonicToLegacySeed(PHRASE, '', false, 64), derivationPath);
+
+    expect(key.publicKey).toEqual(PUBLICDERIVED);
+    expect(key.secretKey).toEqual(SECRETDERIVED);
+  });
+});

packages/util-crypto/src/hd/ethereum/index.ts

@@ -0,0 +1,69 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { Keypair } from '../../types.js';
+
+import { bnToU8a, stringToU8a, u8aConcat } from '@pezkuwi/util';
+
+import { BN_BE_32_OPTS } from '../../bn.js';
+import { hmacShaAsU8a } from '../../hmac/index.js';
+import { secp256k1PairFromSeed, secp256k1PrivateKeyTweakAdd } from '../../secp256k1/index.js';
+import { HARDENED, hdValidatePath } from '../validatePath.js';
+
+interface CodedKeypair extends Keypair {
+  chainCode: Uint8Array;
+}
+
+const MASTER_SECRET = stringToU8a('Bitcoin seed');
+
+function createCoded (secretKey: Uint8Array, chainCode: Uint8Array): CodedKeypair {
+  return {
+    chainCode,
+    publicKey: secp256k1PairFromSeed(secretKey).publicKey,
+    secretKey
+  };
+}
+
+function deriveChild (hd: CodedKeypair, index: number): CodedKeypair {
+  const indexBuffer = bnToU8a(index, BN_BE_32_OPTS);
+  const data = index >= HARDENED
+    ? u8aConcat(new Uint8Array(1), hd.secretKey, indexBuffer)
+    : u8aConcat(hd.publicKey, indexBuffer);
+
+  try {
+    const I = hmacShaAsU8a(hd.chainCode, data, 512);
+
+    return createCoded(
+      secp256k1PrivateKeyTweakAdd(hd.secretKey, I.slice(0, 32)),
+      I.slice(32)
+    );
+  } catch {
+    // In case parse256(IL) >= n or ki == 0, proceed with the next value for i
+    return deriveChild(hd, index + 1);
+  }
+}
+
+export function hdEthereum (seed: Uint8Array, path = ''): Keypair {
+  const I = hmacShaAsU8a(MASTER_SECRET, seed, 512);
+  let hd = createCoded(I.slice(0, 32), I.slice(32));
+
+  if (!path || path === 'm' || path === 'M' || path === "m'" || path === "M'") {
+    return hd;
+  }
+
+  if (!hdValidatePath(path)) {
+    throw new Error('Invalid derivation path');
+  }
+
+  const parts = path.split('/').slice(1);
+
+  for (const p of parts) {
+    hd = deriveChild(hd, parseInt(p, 10) + (
+      (p.length > 1) && p.endsWith("'")
+        ? HARDENED
+        : 0
+    ));
+  }
+
+  return hd;
+}

packages/util-crypto/src/hd/index.ts

@@ -0,0 +1,6 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+export { hdEthereum } from './ethereum/index.js';
+export { hdLedger } from './ledger/index.js';
+export { hdValidatePath } from './validatePath.js';

packages/util-crypto/src/hd/ledger/derivePrivate.ts

@@ -0,0 +1,34 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import { BN_EIGHT, bnToU8a, u8aConcat, u8aToBn } from '@pezkuwi/util';
+
+import { BN_LE_32_OPTS, BN_LE_512_OPTS, BN_LE_OPTS } from '../../bn.js';
+import { hmacShaAsU8a } from '../../hmac/index.js';
+
+// performs hard-only derivation on the xprv
+export function ledgerDerivePrivate (xprv: Uint8Array, index: number): Uint8Array {
+  const kl = xprv.subarray(0, 32);
+  const kr = xprv.subarray(32, 64);
+  const cc = xprv.subarray(64, 96);
+  const data = u8aConcat([0], kl, kr, bnToU8a(index, BN_LE_32_OPTS));
+  const z = hmacShaAsU8a(cc, data, 512);
+
+  data[0] = 0x01;
+
+  return u8aConcat(
+    bnToU8a(
+      u8aToBn(kl, BN_LE_OPTS).iadd(
+        u8aToBn(z.subarray(0, 28), BN_LE_OPTS).imul(BN_EIGHT)
+      ),
+      BN_LE_512_OPTS
+    ).subarray(0, 32),
+    bnToU8a(
+      u8aToBn(kr, BN_LE_OPTS).iadd(
+        u8aToBn(z.subarray(32, 64), BN_LE_OPTS)
+      ),
+      BN_LE_512_OPTS
+    ).subarray(0, 32),
+    hmacShaAsU8a(cc, data, 512).subarray(32, 64)
+  );
+}

packages/util-crypto/src/hd/ledger/index.spec.ts

@@ -0,0 +1,64 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import { u8aToHex } from '@pezkuwi/util';
+
+import { hdLedger } from '../index.js';
+
+const MNE_0 = 'abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about';
+const MNE_1 = 'open jelly jeans corn ketchup supreme brief element armed lens vault weather original scissors rug priority vicious lesson raven spot gossip powder person volcano';
+const MNE_P = `${MNE_1} testing`;
+
+const TESTS = {
+  Kusama: {
+    slip44: 0x01b2,
+    tests: [
+      {
+        ed25519: '0x98cb4e14e0e08ea876f88d728545ea7572dc07dbbe69f1731c418fb827e69d41',
+        index: [0, 0],
+        mnemonic: MNE_0
+      },
+      {
+        ed25519: '0x70e9010e84c81095aaa5f63b1c5a6a66a1dcbec017a23c2f3b7a1b08fe5ea65a',
+        index: [0, 0],
+        mnemonic: MNE_1
+      },
+      {
+        ed25519: '0xf06730efb1e6ea59ac752a7c3620fade3909062fb88597856cc3af72045fa65a',
+        index: [5, 7],
+        mnemonic: MNE_1
+      }
+    ]
+  },
+  Polkadot: {
+    slip44: 0x0162,
+    tests: [
+      {
+        ed25519: '0xe8c68348586d53e4e8d1a864b0e4e17c75e4eb06e0c63c1432bef2ba29e69d41',
+        index: [0, 0],
+        mnemonic: MNE_0
+      },
+      {
+        ed25519: '0x3890e8db837eba3f8f25215c753e1091062298ce671a51441e7ef89a7adc4f48',
+        index: [0, 0],
+        mnemonic: MNE_P
+      }
+    ]
+  }
+};
+
+describe('ledgerDerive', (): void => {
+  Object.entries(TESTS).forEach(([network, { slip44, tests }]): void => {
+    tests.forEach(({ ed25519, index: [account, address], mnemonic }, index): void => {
+      it(`derives a known ed25519 seed for ${network} (${index})`, (): void => {
+        expect(u8aToHex(
+          hdLedger(mnemonic, `m/44'/${slip44}'/${account}'/0'/${address}'`)
+            .secretKey
+            .slice(0, 32)
+        )).toEqual(ed25519);
+      });
+    });
+  });
+});

packages/util-crypto/src/hd/ledger/index.ts

@@ -0,0 +1,42 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { Keypair } from '../../types.js';
+
+import { ed25519PairFromSeed } from '../../ed25519/index.js';
+import { mnemonicValidate } from '../../mnemonic/index.js';
+import { HARDENED, hdValidatePath } from '../validatePath.js';
+import { ledgerDerivePrivate } from './derivePrivate.js';
+import { ledgerMaster } from './master.js';
+
+export function hdLedger (_mnemonic: string, path: string): Keypair {
+  const words = _mnemonic
+    .split(' ')
+    .map((s) => s.trim())
+    .filter((s) => s);
+
+  if (![12, 24, 25].includes(words.length)) {
+    throw new Error('Expected a mnemonic with 24 words (or 25 including a password)');
+  }
+
+  const [mnemonic, password] = words.length === 25
+    ? [words.slice(0, 24).join(' '), words[24]]
+    : [words.join(' '), ''];
+
+  if (!mnemonicValidate(mnemonic)) {
+    throw new Error('Invalid mnemonic passed to ledger derivation');
+  } else if (!hdValidatePath(path)) {
+    throw new Error('Invalid derivation path');
+  }
+
+  const parts = path.split('/').slice(1);
+  let seed = ledgerMaster(mnemonic, password);
+
+  for (const p of parts) {
+    const n = parseInt(p.replace(/'$/, ''), 10);
+
+    seed = ledgerDerivePrivate(seed, (n < HARDENED) ? (n + HARDENED) : n);
+  }
+
+  return ed25519PairFromSeed(seed.slice(0, 32));
+}

packages/util-crypto/src/hd/ledger/master.spec.ts

@@ -0,0 +1,19 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import { u8aToHex } from '@pezkuwi/util';
+
+import { ledgerMaster } from './master.js';
+
+const MNEMONIC = 'abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about';
+const XPRV = '0x402b03cd9c8bed9ba9f9bd6cd9c315ce9fcc59c7c25d37c85a36096617e69d418e35cb4a3b737afd007f0688618f21a8831643c0e6c77fc33c06026d2a0fc93832596435e70647d7d98ef102a32ea40319ca8fb6c851d7346d3bd8f9d1492658';
+
+describe('ledgerDerive', (): void => {
+  it('derives a known master xprv', (): void => {
+    expect(u8aToHex(
+      ledgerMaster(MNEMONIC)
+    )).toEqual(XPRV);
+  });
+});

packages/util-crypto/src/hd/ledger/master.ts

@@ -0,0 +1,26 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import { u8aConcat } from '@pezkuwi/util';
+
+import { hmacShaAsU8a } from '../../hmac/index.js';
+import { mnemonicToSeedSync } from '../../mnemonic/bip39.js';
+
+const ED25519_CRYPTO = 'ed25519 seed';
+
+// gets an xprv from a mnemonic
+export function ledgerMaster (mnemonic: string, password?: string): Uint8Array {
+  const seed = mnemonicToSeedSync(mnemonic, password);
+  const chainCode = hmacShaAsU8a(ED25519_CRYPTO, new Uint8Array([1, ...seed]), 256);
+  let priv;
+
+  while (!priv || (priv[31] & 0b0010_0000)) {
+    priv = hmacShaAsU8a(ED25519_CRYPTO, priv || seed, 512);
+  }
+
+  priv[0] &= 0b1111_1000;
+  priv[31] &= 0b0111_1111;
+  priv[31] |= 0b0100_0000;
+
+  return u8aConcat(priv, chainCode);
+}

packages/util-crypto/src/hd/validatePath.spec.ts

@@ -0,0 +1,30 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import { hdValidatePath } from './index.js';
+
+const VECTORS: [string, boolean][] = [
+  ["m/44'/60'/0'/0/0", true],
+  ['m/0', true],
+  ["m/123'", true],
+  ["n/44'/60'/0'/0/0", false],
+  ['m', false],
+  ['m/', false],
+  ["m/xyz'", false],
+  ['m/123x', false],
+  ['m/123"', false],
+  ["m/123''", false],
+  ["m/123'0'", false],
+  [`m/${0x80000000}`, false],
+  ['m/-1', false]
+];
+
+describe('hdValidatePath', (): void => {
+  VECTORS.forEach(([path, result]): void => {
+    it(`validates ${path} as ${result.toString()}`, (): void => {
+      expect(hdValidatePath(path)).toEqual(result);
+    });
+  });
+});

packages/util-crypto/src/hd/validatePath.ts

@@ -0,0 +1,24 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+export const HARDENED = 0x80000000;
+
+export function hdValidatePath (path: string): boolean {
+  if (!path.startsWith('m/')) {
+    return false;
+  }
+
+  const parts = path.split('/').slice(1);
+
+  for (const p of parts) {
+    const n = /^\d+'?$/.test(p)
+      ? parseInt(p.replace(/'$/, ''), 10)
+      : Number.NaN;
+
+    if (isNaN(n) || (n >= HARDENED) || (n < 0)) {
+      return false;
+    }
+  }
+
+  return true;
+}