| 1 | // Copyright 2017-2022 @polkadot/util-crypto authors & contributors
|
| 2 | // SPDX-License-Identifier: Apache-2.0
|
| 3 | import { assert, isU8a } from '@polkadot/util';
|
| 4 | import { sr25519PairFromU8a } from "./pair/fromU8a.js";
|
| 5 | import { sr25519KeypairToU8a } from "./pair/toU8a.js";
|
| 6 | export function createDeriveFn(derive) {
|
| 7 | return (keypair, chainCode) => {
|
| 8 | assert(isU8a(chainCode) && chainCode.length === 32, 'Invalid chainCode passed to derive');
|
| 9 | return sr25519PairFromU8a(derive(sr25519KeypairToU8a(keypair), chainCode));
|
| 10 | };
|
| 11 | } |
| \ | No newline at end of file |