Jaco Greeff
8d355ff6fc
* Local base58 alphabet check for better errors
* Rewrite yarn.lock
* Align error return values
* Split base58{Encode, Decode}
* base58Encode input types
* Function names, some docs
22 lines
673 B
TypeScript
22 lines
673 B
TypeScript
// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
|
|
// This software may be modified and distributed under the terms
|
|
// of the Apache-2.0 license. See the LICENSE file for details.
|
|
|
|
import BN from 'bn.js';
|
|
import { bnToU8a, stringToU8a, u8aConcat } from '@polkadot/util';
|
|
|
|
import blake2AsU8a from '../blake2/asU8a';
|
|
import decodeAddress from './decode';
|
|
|
|
const PREFIX = stringToU8a('modlpy/utilisuba');
|
|
|
|
export default function createKeyDerived (who: Uint8Array | string, index: BigInt | BN | number): Uint8Array {
|
|
return blake2AsU8a(
|
|
u8aConcat(
|
|
PREFIX,
|
|
decodeAddress(who),
|
|
bnToU8a(index, { bitLength: 16, isLe: true })
|
|
)
|
|
);
|
|
}
|