mirror of
https://github.com/pezkuwichain/pezkuwi-common.git
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pezkuwichain
a5542fdd87
- Fixed internal @polkadot references to @pezkuwi - Updated hw-ledger and hw-ledger-transports packages - Updated keyring and networks packages - Version 14.0.7
22 lines
731 B
TypeScript
22 lines
731 B
TypeScript
// Copyright 2017-2025 @pezkuwi/util-crypto authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { Keypair } from '../types.js';
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import * as sr25519 from '@scure/sr25519';
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import { isU8a } from '@pezkuwi/util';
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export function createDeriveFn (derive: (pair: Uint8Array, cc: Uint8Array) => Uint8Array): (keypair: Keypair, chainCode: Uint8Array) => Keypair {
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return (keypair: Keypair, chainCode: Uint8Array): Keypair => {
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if (!isU8a(chainCode) || chainCode.length !== 32) {
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throw new Error('Invalid chainCode passed to derive');
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}
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const secretKey = derive(keypair.secretKey, chainCode);
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const publicKey = sr25519.getPublicKey(secretKey);
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return { publicKey, secretKey };
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};
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}
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