Jaco Greeff
5dc8e87797
* I compiles... ship it!? * Re-enable derivation from path tests * Update schnorrkel-js (latest w3f version) * Swap default keyring to sr25519
16 lines
535 B
TypeScript
16 lines
535 B
TypeScript
// Copyright 2017-2019 @polkadot/util-crypto authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { compactAddLength, stringToU8a, u8aConcat } from '@polkadot/util';
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import blake2AsU8a from '../blake2/asU8a';
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const HDKD = compactAddLength(stringToU8a('Ed25519HDKD'));
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export default function deriveHard (seed: Uint8Array, chainCode: Uint8Array): Uint8Array {
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return blake2AsU8a(
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u8aConcat(HDKD, seed, chainCode)
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);
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}
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