| 1 | import { u8aConcat } from '@polkadot/util';
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| 2 | import { hmacShaAsU8a } from '../../hmac/index.js';
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| 3 | import { mnemonicToSeedSync } from '../../mnemonic/bip39.js';
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| 4 | const ED25519_CRYPTO = 'ed25519 seed';
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| 5 | export function ledgerMaster(mnemonic, password) {
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| 6 | const seed = mnemonicToSeedSync(mnemonic, password);
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| 7 | const chainCode = hmacShaAsU8a(ED25519_CRYPTO, new Uint8Array([1, ...seed]), 256);
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| 8 | let priv;
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| 9 | while (!priv || (priv[31] & 32)) {
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| 10 | priv = hmacShaAsU8a(ED25519_CRYPTO, priv || seed, 512);
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| 11 | }
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| 12 | priv[0] &= 248;
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| 13 | priv[31] &= 127;
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| 14 | priv[31] |= 64;
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| 15 | return u8aConcat(priv, chainCode);
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| 16 | }
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