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Module

std/hash/_sha3/shake.ts

Deno standard library
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { Sponge } from "./sponge.ts";import { keccakf } from "./keccakf.ts";
/** Shake128 hash */export class Shake128 extends Sponge { /** * Instantiates a new Shake128 hash * @param bitsize length of hash in bits */ constructor(bitsize: number) { if (bitsize < 8) { throw new Error("shake128: `bitsize` too small"); }
if (bitsize % 8 !== 0) { throw new Error("shake128: `bitsize` must be multiple of 8"); }
super({ bitsize: bitsize, rate: 168, dsbyte: 0x1f, permutator: keccakf, }); }}
/** * Instantiates a new Shake256 hash * @param bitsize length of hash in bits */export class Shake256 extends Sponge { constructor(bitsize: number) { if (bitsize < 8) { throw new Error("shake256: `bitsize` too small"); }
if (bitsize % 8 !== 0) { throw new Error("shake256: `bitsize` must be multiple of 8"); }
super({ bitsize: bitsize, rate: 136, dsbyte: 0x1f, permutator: keccakf, }); }}