@swtc/common
Version:
swtc chain information
94 lines • 2.96 kB
JavaScript
"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 ^ utils_1.rotl32(X, 9) ^ utils_1.rotl32(X, 17);
}
function P1(X) {
return X ^ utils_1.rotl32(X, 15) ^ 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] ^ utils_1.rotl32(W[i - 3], 15)) ^
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 = utils_1.rotl32(utils_1.sum32_3(utils_1.rotl32(a, 12), e, utils_1.rotl32(T(j), j)), 7);
SS2 = SS1 ^ utils_1.rotl32(a, 12);
TT1 = utils_1.sum32_4(FF(a, b, c, j), d, SS2, M[j]);
TT2 = utils_1.sum32_4(GG(e, f, g, j), h, SS1, W[j]);
d = c;
c = utils_1.rotl32(b, 9);
b = a;
a = TT1;
h = g;
g = 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 utils_1.toHex32(this.h, "big");
else
return utils_1.split32(this.h, "big");
}
}
exports.SM3 = SM3;
//# sourceMappingURL=sm3.js.map