193 lines
8.2 KiB
JavaScript
193 lines
8.2 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.blake2b = exports.BLAKE2b = void 0;
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const _blake_js_1 = require("./_blake.js");
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const _u64_js_1 = require("./_u64.js");
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const utils_js_1 = require("./utils.js");
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// Same as SHA-512 but LE
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// prettier-ignore
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const B2B_IV = /* @__PURE__ */ new Uint32Array([
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0xf3bcc908, 0x6a09e667, 0x84caa73b, 0xbb67ae85, 0xfe94f82b, 0x3c6ef372, 0x5f1d36f1, 0xa54ff53a,
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0xade682d1, 0x510e527f, 0x2b3e6c1f, 0x9b05688c, 0xfb41bd6b, 0x1f83d9ab, 0x137e2179, 0x5be0cd19
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]);
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// Temporary buffer
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const BBUF = /* @__PURE__ */ new Uint32Array(32);
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// Mixing function G splitted in two halfs
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function G1b(a, b, c, d, msg, x) {
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// NOTE: V is LE here
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const Xl = msg[x], Xh = msg[x + 1]; // prettier-ignore
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let Al = BBUF[2 * a], Ah = BBUF[2 * a + 1]; // prettier-ignore
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let Bl = BBUF[2 * b], Bh = BBUF[2 * b + 1]; // prettier-ignore
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let Cl = BBUF[2 * c], Ch = BBUF[2 * c + 1]; // prettier-ignore
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let Dl = BBUF[2 * d], Dh = BBUF[2 * d + 1]; // prettier-ignore
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// v[a] = (v[a] + v[b] + x) | 0;
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let ll = _u64_js_1.default.add3L(Al, Bl, Xl);
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Ah = _u64_js_1.default.add3H(ll, Ah, Bh, Xh);
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Al = ll | 0;
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// v[d] = rotr(v[d] ^ v[a], 32)
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({ Dh, Dl } = { Dh: Dh ^ Ah, Dl: Dl ^ Al });
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({ Dh, Dl } = { Dh: _u64_js_1.default.rotr32H(Dh, Dl), Dl: _u64_js_1.default.rotr32L(Dh, Dl) });
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// v[c] = (v[c] + v[d]) | 0;
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({ h: Ch, l: Cl } = _u64_js_1.default.add(Ch, Cl, Dh, Dl));
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// v[b] = rotr(v[b] ^ v[c], 24)
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({ Bh, Bl } = { Bh: Bh ^ Ch, Bl: Bl ^ Cl });
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({ Bh, Bl } = { Bh: _u64_js_1.default.rotrSH(Bh, Bl, 24), Bl: _u64_js_1.default.rotrSL(Bh, Bl, 24) });
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(BBUF[2 * a] = Al), (BBUF[2 * a + 1] = Ah);
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(BBUF[2 * b] = Bl), (BBUF[2 * b + 1] = Bh);
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(BBUF[2 * c] = Cl), (BBUF[2 * c + 1] = Ch);
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(BBUF[2 * d] = Dl), (BBUF[2 * d + 1] = Dh);
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}
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function G2b(a, b, c, d, msg, x) {
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// NOTE: V is LE here
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const Xl = msg[x], Xh = msg[x + 1]; // prettier-ignore
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let Al = BBUF[2 * a], Ah = BBUF[2 * a + 1]; // prettier-ignore
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let Bl = BBUF[2 * b], Bh = BBUF[2 * b + 1]; // prettier-ignore
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let Cl = BBUF[2 * c], Ch = BBUF[2 * c + 1]; // prettier-ignore
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let Dl = BBUF[2 * d], Dh = BBUF[2 * d + 1]; // prettier-ignore
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// v[a] = (v[a] + v[b] + x) | 0;
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let ll = _u64_js_1.default.add3L(Al, Bl, Xl);
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Ah = _u64_js_1.default.add3H(ll, Ah, Bh, Xh);
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Al = ll | 0;
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// v[d] = rotr(v[d] ^ v[a], 16)
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({ Dh, Dl } = { Dh: Dh ^ Ah, Dl: Dl ^ Al });
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({ Dh, Dl } = { Dh: _u64_js_1.default.rotrSH(Dh, Dl, 16), Dl: _u64_js_1.default.rotrSL(Dh, Dl, 16) });
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// v[c] = (v[c] + v[d]) | 0;
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({ h: Ch, l: Cl } = _u64_js_1.default.add(Ch, Cl, Dh, Dl));
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// v[b] = rotr(v[b] ^ v[c], 63)
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({ Bh, Bl } = { Bh: Bh ^ Ch, Bl: Bl ^ Cl });
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({ Bh, Bl } = { Bh: _u64_js_1.default.rotrBH(Bh, Bl, 63), Bl: _u64_js_1.default.rotrBL(Bh, Bl, 63) });
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(BBUF[2 * a] = Al), (BBUF[2 * a + 1] = Ah);
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(BBUF[2 * b] = Bl), (BBUF[2 * b + 1] = Bh);
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(BBUF[2 * c] = Cl), (BBUF[2 * c + 1] = Ch);
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(BBUF[2 * d] = Dl), (BBUF[2 * d + 1] = Dh);
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}
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class BLAKE2b extends _blake_js_1.BLAKE {
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constructor(opts = {}) {
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super(128, opts.dkLen === undefined ? 64 : opts.dkLen, opts, 64, 16, 16);
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// Same as SHA-512, but LE
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this.v0l = B2B_IV[0] | 0;
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this.v0h = B2B_IV[1] | 0;
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this.v1l = B2B_IV[2] | 0;
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this.v1h = B2B_IV[3] | 0;
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this.v2l = B2B_IV[4] | 0;
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this.v2h = B2B_IV[5] | 0;
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this.v3l = B2B_IV[6] | 0;
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this.v3h = B2B_IV[7] | 0;
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this.v4l = B2B_IV[8] | 0;
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this.v4h = B2B_IV[9] | 0;
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this.v5l = B2B_IV[10] | 0;
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this.v5h = B2B_IV[11] | 0;
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this.v6l = B2B_IV[12] | 0;
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this.v6h = B2B_IV[13] | 0;
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this.v7l = B2B_IV[14] | 0;
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this.v7h = B2B_IV[15] | 0;
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const keyLength = opts.key ? opts.key.length : 0;
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this.v0l ^= this.outputLen | (keyLength << 8) | (0x01 << 16) | (0x01 << 24);
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if (opts.salt) {
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const salt = (0, utils_js_1.u32)((0, utils_js_1.toBytes)(opts.salt));
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this.v4l ^= (0, utils_js_1.byteSwapIfBE)(salt[0]);
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this.v4h ^= (0, utils_js_1.byteSwapIfBE)(salt[1]);
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this.v5l ^= (0, utils_js_1.byteSwapIfBE)(salt[2]);
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this.v5h ^= (0, utils_js_1.byteSwapIfBE)(salt[3]);
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}
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if (opts.personalization) {
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const pers = (0, utils_js_1.u32)((0, utils_js_1.toBytes)(opts.personalization));
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this.v6l ^= (0, utils_js_1.byteSwapIfBE)(pers[0]);
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this.v6h ^= (0, utils_js_1.byteSwapIfBE)(pers[1]);
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this.v7l ^= (0, utils_js_1.byteSwapIfBE)(pers[2]);
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this.v7h ^= (0, utils_js_1.byteSwapIfBE)(pers[3]);
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}
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if (opts.key) {
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// Pad to blockLen and update
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const tmp = new Uint8Array(this.blockLen);
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tmp.set((0, utils_js_1.toBytes)(opts.key));
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this.update(tmp);
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}
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}
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// prettier-ignore
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get() {
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let { v0l, v0h, v1l, v1h, v2l, v2h, v3l, v3h, v4l, v4h, v5l, v5h, v6l, v6h, v7l, v7h } = this;
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return [v0l, v0h, v1l, v1h, v2l, v2h, v3l, v3h, v4l, v4h, v5l, v5h, v6l, v6h, v7l, v7h];
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}
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// prettier-ignore
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set(v0l, v0h, v1l, v1h, v2l, v2h, v3l, v3h, v4l, v4h, v5l, v5h, v6l, v6h, v7l, v7h) {
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this.v0l = v0l | 0;
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this.v0h = v0h | 0;
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this.v1l = v1l | 0;
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this.v1h = v1h | 0;
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this.v2l = v2l | 0;
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this.v2h = v2h | 0;
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this.v3l = v3l | 0;
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this.v3h = v3h | 0;
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this.v4l = v4l | 0;
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this.v4h = v4h | 0;
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this.v5l = v5l | 0;
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this.v5h = v5h | 0;
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this.v6l = v6l | 0;
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this.v6h = v6h | 0;
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this.v7l = v7l | 0;
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this.v7h = v7h | 0;
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}
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compress(msg, offset, isLast) {
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this.get().forEach((v, i) => (BBUF[i] = v)); // First half from state.
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BBUF.set(B2B_IV, 16); // Second half from IV.
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let { h, l } = _u64_js_1.default.fromBig(BigInt(this.length));
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BBUF[24] = B2B_IV[8] ^ l; // Low word of the offset.
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BBUF[25] = B2B_IV[9] ^ h; // High word.
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// Invert all bits for last block
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if (isLast) {
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BBUF[28] = ~BBUF[28];
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BBUF[29] = ~BBUF[29];
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}
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let j = 0;
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const s = _blake_js_1.SIGMA;
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for (let i = 0; i < 12; i++) {
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G1b(0, 4, 8, 12, msg, offset + 2 * s[j++]);
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G2b(0, 4, 8, 12, msg, offset + 2 * s[j++]);
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G1b(1, 5, 9, 13, msg, offset + 2 * s[j++]);
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G2b(1, 5, 9, 13, msg, offset + 2 * s[j++]);
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G1b(2, 6, 10, 14, msg, offset + 2 * s[j++]);
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G2b(2, 6, 10, 14, msg, offset + 2 * s[j++]);
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G1b(3, 7, 11, 15, msg, offset + 2 * s[j++]);
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G2b(3, 7, 11, 15, msg, offset + 2 * s[j++]);
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G1b(0, 5, 10, 15, msg, offset + 2 * s[j++]);
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G2b(0, 5, 10, 15, msg, offset + 2 * s[j++]);
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G1b(1, 6, 11, 12, msg, offset + 2 * s[j++]);
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G2b(1, 6, 11, 12, msg, offset + 2 * s[j++]);
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G1b(2, 7, 8, 13, msg, offset + 2 * s[j++]);
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G2b(2, 7, 8, 13, msg, offset + 2 * s[j++]);
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G1b(3, 4, 9, 14, msg, offset + 2 * s[j++]);
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G2b(3, 4, 9, 14, msg, offset + 2 * s[j++]);
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}
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this.v0l ^= BBUF[0] ^ BBUF[16];
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this.v0h ^= BBUF[1] ^ BBUF[17];
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this.v1l ^= BBUF[2] ^ BBUF[18];
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this.v1h ^= BBUF[3] ^ BBUF[19];
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this.v2l ^= BBUF[4] ^ BBUF[20];
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this.v2h ^= BBUF[5] ^ BBUF[21];
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this.v3l ^= BBUF[6] ^ BBUF[22];
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this.v3h ^= BBUF[7] ^ BBUF[23];
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this.v4l ^= BBUF[8] ^ BBUF[24];
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this.v4h ^= BBUF[9] ^ BBUF[25];
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this.v5l ^= BBUF[10] ^ BBUF[26];
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this.v5h ^= BBUF[11] ^ BBUF[27];
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this.v6l ^= BBUF[12] ^ BBUF[28];
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this.v6h ^= BBUF[13] ^ BBUF[29];
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this.v7l ^= BBUF[14] ^ BBUF[30];
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this.v7h ^= BBUF[15] ^ BBUF[31];
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BBUF.fill(0);
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}
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destroy() {
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this.destroyed = true;
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this.buffer32.fill(0);
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this.set(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
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}
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}
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exports.BLAKE2b = BLAKE2b;
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/**
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* BLAKE2b - optimized for 64-bit platforms. JS doesn't have uint64, so it's slower than BLAKE2s.
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* @param msg - message that would be hashed
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* @param opts - dkLen, key, salt, personalization
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*/
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exports.blake2b = (0, utils_js_1.wrapConstructorWithOpts)((opts) => new BLAKE2b(opts));
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//# sourceMappingURL=blake2b.js.map
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