| 1 | import { ed25519PairFromSeed } from '../../ed25519/index.js';
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| 2 | import { mnemonicValidate } from '../../mnemonic/index.js';
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| 3 | import { HARDENED, hdValidatePath } from '../validatePath.js';
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| 4 | import { ledgerDerivePrivate } from './derivePrivate.js';
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| 5 | import { ledgerMaster } from './master.js';
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| 6 | export function hdLedger(_mnemonic, path) {
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| 7 | const words = _mnemonic
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| 8 | .split(' ')
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| 9 | .map((s) => s.trim())
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| 10 | .filter((s) => s);
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| 11 | if (![12, 24, 25].includes(words.length)) {
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| 12 | throw new Error('Expected a mnemonic with 24 words (or 25 including a password)');
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| 13 | }
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| 14 | const [mnemonic, password] = words.length === 25
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| 15 | ? [words.slice(0, 24).join(' '), words[24]]
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| 16 | : [words.join(' '), ''];
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| 17 | if (!mnemonicValidate(mnemonic)) {
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| 18 | throw new Error('Invalid mnemonic passed to ledger derivation');
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| 19 | }
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| 20 | else if (!hdValidatePath(path)) {
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| 21 | throw new Error('Invalid derivation path');
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| 22 | }
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| 23 | const parts = path.split('/').slice(1);
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| 24 | let seed = ledgerMaster(mnemonic, password);
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| 25 | for (const p of parts) {
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| 26 | const n = parseInt(p.replace(/'$/, ''), 10);
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| 27 | seed = ledgerDerivePrivate(seed, (n < HARDENED) ? (n + HARDENED) : n);
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| 28 | }
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| 29 | return ed25519PairFromSeed(seed.slice(0, 32));
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| 30 | }
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