mima-kit/dist/hash/turboSHAKE.js

mima-kit is a cryptographic suite implemented in TypeScript. The goal is to provide an easy-to-use cryptographic library. mima-kit 是一个使用 TypeScript 实现的密码学套件。目标是提供一个简单易用的密码学库。

import { createHash } from '../core/hash';
import { KitError } from '../core/utils';
import { keccak_p_1600, sponge_1600 } from './keccak1600';
/**
 * turboSHAKE 填充函数 / Padding Function
 *
 * ```ts
 * M || D || 0x00*
 * ```
 *
 * @param {number} rByte - 处理速率 / Rate
 * @param {number} D - 域分隔符 / Domain Separator
 */
function turboShakePadding(rByte, D) {
    return (M) => {
        const sig_byte = M.length + 1;
        const block = Math.ceil(sig_byte / rByte);
        const P = new Uint8Array(block * rByte);
        P.set(M);
        P[M.length] = D;
        P[P.length - 1] ^= 0x80;
        return P;
    };
}
/**
 * TurboSHAKE128
 *
 * @param {number} d - 输出长度 / Digest Size (bit)
 * @param {number} [D] - 域分隔符 / Domain Separator (range: 0x01 ~ 0x7F, default: 0x1F)
 */
export function turboshake128(d, D = 0x1F) {
    if (D < 0x01 || D > 0x7F) {
        throw new KitError('Invalid Domain Separator');
    }
    const d_byte = d >> 3;
    const r_byte = 168;
    const f = keccak_p_1600(12);
    const pad = turboShakePadding(r_byte, D);
    return createHash((M) => sponge_1600(r_byte, d_byte, pad, f)(M), {
        ALGORITHM: `TurboSHAKE128/${d}`,
        BLOCK_SIZE: r_byte,
        DIGEST_SIZE: d_byte,
    });
}
/**
 * TurboSHAKE256
 *
 * @param {number} d - 输出长度 / Digest Size (bit)
 * @param {number} [D] - 域分隔符 / Domain Separator (range: 0x01 ~ 0x7F, default: 0x1F)
 */
export function turboshake256(d, D = 0x1F) {
    if (D < 0x01 || D > 0x7F) {
        throw new KitError('Invalid Domain Separator');
    }
    const d_byte = d >> 3;
    const r_byte = 136;
    const f = keccak_p_1600(12);
    const pad = turboShakePadding(r_byte, D);
    return createHash((M) => sponge_1600(r_byte, d_byte, pad, f)(M), {
        ALGORITHM: `TurboSHAKE256/${d}`,
        BLOCK_SIZE: r_byte,
        DIGEST_SIZE: d_byte,
    });
}