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Deduped random value generation from salt generation

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This commit is contained in:
Greg Hysen
2019-02-08 16:04:45 -08:00
parent 500b4940a3
commit a9aaae7f97
4 changed files with 29 additions and 9 deletions
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11
packages/utils/src/address_utils.ts
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@@ -1,7 +1,9 @@
import { addHexPrefix, stripHexPrefix } from 'ethereumjs-util';
import { addHexPrefix, sha3, stripHexPrefix } from 'ethereumjs-util';
import * as jsSHA3 from 'js-sha3';
import * as _ from 'lodash';
import { generatePseudoRandom256BitNumber } from './random';
const BASIC_ADDRESS_REGEX = /^(0x)?[0-9a-f]{40}$/i;
const SAME_CASE_ADDRESS_REGEX = /^(0x)?([0-9a-f]{40}|[0-9A-F]{40})$/;
const ADDRESS_LENGTH = 40;
@@ -43,4 +45,11 @@ export const addressUtils = {
padZeros(address: string): string {
return addHexPrefix(_.padStart(stripHexPrefix(address), ADDRESS_LENGTH, '0'));
},
generatePseudoRandomAddress(): string {
const randomBigNum = generatePseudoRandom256BitNumber();
const randomBuff = sha3(randomBigNum.toString());
const addressLengthInBytes = 20;
const randomAddress = `0x${randomBuff.slice(0, addressLengthInBytes).toString('hex')}`;
return randomAddress;
},
};