62 lines
2.4 KiB
JavaScript
62 lines
2.4 KiB
JavaScript
// nip06.ts
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import { bytesToHex } from "@noble/hashes/utils";
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import { wordlist } from "@scure/bip39/wordlists/english";
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import { generateMnemonic, mnemonicToSeedSync, validateMnemonic } from "@scure/bip39";
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import { HDKey } from "@scure/bip32";
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var DERIVATION_PATH = `m/44'/1237'`;
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function privateKeyFromSeedWords(mnemonic, passphrase, accountIndex = 0) {
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let root = HDKey.fromMasterSeed(mnemonicToSeedSync(mnemonic, passphrase));
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let privateKey = root.derive(`${DERIVATION_PATH}/${accountIndex}'/0/0`).privateKey;
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if (!privateKey)
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throw new Error("could not derive private key");
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return privateKey;
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}
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function accountFromSeedWords(mnemonic, passphrase, accountIndex = 0) {
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const root = HDKey.fromMasterSeed(mnemonicToSeedSync(mnemonic, passphrase));
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const seed = root.derive(`${DERIVATION_PATH}/${accountIndex}'/0/0`);
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const publicKey = bytesToHex(seed.publicKey.slice(1));
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const privateKey = seed.privateKey;
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if (!privateKey || !publicKey) {
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throw new Error("could not derive key pair");
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}
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return { privateKey, publicKey };
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}
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function extendedKeysFromSeedWords(mnemonic, passphrase, extendedAccountIndex = 0) {
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let root = HDKey.fromMasterSeed(mnemonicToSeedSync(mnemonic, passphrase));
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let seed = root.derive(`${DERIVATION_PATH}/${extendedAccountIndex}'`);
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let privateExtendedKey = seed.privateExtendedKey;
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let publicExtendedKey = seed.publicExtendedKey;
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if (!privateExtendedKey && !publicExtendedKey)
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throw new Error("could not derive extended key pair");
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return { privateExtendedKey, publicExtendedKey };
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}
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function accountFromExtendedKey(base58key, accountIndex = 0) {
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let extendedKey = HDKey.fromExtendedKey(base58key);
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let version = base58key.slice(0, 4);
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let child = extendedKey.deriveChild(0).deriveChild(accountIndex);
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let publicKey = bytesToHex(child.publicKey.slice(1));
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if (!publicKey)
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throw new Error("could not derive public key");
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if (version === "xprv") {
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let privateKey = child.privateKey;
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if (!privateKey)
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throw new Error("could not derive private key");
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return { privateKey, publicKey };
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}
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return { publicKey };
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}
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function generateSeedWords() {
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return generateMnemonic(wordlist);
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}
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function validateWords(words) {
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return validateMnemonic(words, wordlist);
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}
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export {
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accountFromExtendedKey,
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accountFromSeedWords,
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extendedKeysFromSeedWords,
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generateSeedWords,
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privateKeyFromSeedWords,
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validateWords
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};
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