@swtc/common/cjs/sm3/sm3.js

swtc chain information

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SM3 = void 0;
const utils_1 = require("./utils");
const common_1 = require("./common");
function P0(X) {
    return X ^ (0, utils_1.rotl32)(X, 9) ^ (0, utils_1.rotl32)(X, 17);
}
function P1(X) {
    return X ^ (0, utils_1.rotl32)(X, 15) ^ (0, utils_1.rotl32)(X, 23);
}
function FF(X, Y, Z, j) {
    return j >= 0 && j <= 15 ? X ^ Y ^ Z : (X & Y) | (X & Z) | (Y & Z);
}
function GG(X, Y, Z, j) {
    return j >= 0 && j <= 15 ? X ^ Y ^ Z : (X & Y) | (~X & Z);
}
function T(j) {
    return j >= 0 && j <= 15 ? 0x79cc4519 : 0x7a879d8a;
}
class SM3 extends common_1.BlockHash {
    constructor() {
        super(512, 256, 192, 64);
        this.h = [
            0x7380166f, 0x4914b2b9, 0x172442d7, 0xda8a0600, 0xa96f30bc, 0x163138aa,
            0xe38dee4d, 0xb0fb0e4e
        ];
        this.W = new Array(68);
        this.M = new Array(64);
    }
    _update(msg, start) {
        var W = this.W;
        var M = this.M;
        for (let i = 0; i < 16; i++)
            W[i] = msg[start + i];
        for (let i = 16; i < 68; i++)
            W[i] =
                P1(W[i - 16] ^ W[i - 9] ^ (0, utils_1.rotl32)(W[i - 3], 15)) ^
                    (0, utils_1.rotl32)(W[i - 13], 7) ^
                    W[i - 6];
        for (let i = 0; i < 64; i++)
            M[i] = W[i] ^ W[i + 4];
        let a = this.h[0];
        let b = this.h[1];
        let c = this.h[2];
        let d = this.h[3];
        let e = this.h[4];
        let f = this.h[5];
        let g = this.h[6];
        let h = this.h[7];
        let SS1;
        let SS2;
        let TT1;
        let TT2;
        for (let j = 0; j < 64; j += 1) {
            SS1 = (0, utils_1.rotl32)((0, utils_1.sum32_3)((0, utils_1.rotl32)(a, 12), e, (0, utils_1.rotl32)(T(j), j)), 7);
            SS2 = SS1 ^ (0, utils_1.rotl32)(a, 12);
            TT1 = (0, utils_1.sum32_4)(FF(a, b, c, j), d, SS2, M[j]);
            TT2 = (0, utils_1.sum32_4)(GG(e, f, g, j), h, SS1, W[j]);
            d = c;
            c = (0, utils_1.rotl32)(b, 9);
            b = a;
            a = TT1;
            h = g;
            g = (0, utils_1.rotl32)(f, 19);
            f = e;
            e = P0(TT2);
        }
        this.h[0] = this.h[0] ^ a;
        this.h[1] = this.h[1] ^ b;
        this.h[2] = this.h[2] ^ c;
        this.h[3] = this.h[3] ^ d;
        this.h[4] = this.h[4] ^ e;
        this.h[5] = this.h[5] ^ f;
        this.h[6] = this.h[6] ^ g;
        this.h[7] = this.h[7] ^ h;
    }
    _digest(enc) {
        this.h[0] = this.h[0] >>> 0;
        this.h[1] = this.h[1] >>> 0;
        this.h[2] = this.h[2] >>> 0;
        this.h[3] = this.h[3] >>> 0;
        this.h[4] = this.h[4] >>> 0;
        this.h[5] = this.h[5] >>> 0;
        this.h[6] = this.h[6] >>> 0;
        this.h[7] = this.h[7] >>> 0;
        if (enc === "hex")
            return (0, utils_1.toHex32)(this.h, "big");
        else
            return (0, utils_1.split32)(this.h, "big");
    }
}
exports.SM3 = SM3;
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