@proton/ccxt
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A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 130+ exchanges
126 lines (123 loc) • 5.29 kB
JavaScript
// ----------------------------------------------------------------------------
// PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
// https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
// EDIT THE CORRESPONDENT .ts FILE INSTEAD
import { BLAKE2, SIGMA } from './_blake2.js';
import u64 from './_u64.js';
import { rotr, toBytes, wrapConstructorWithOpts, u32 } from './utils.js';
// Initial state:
// first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19)
// same as SHA-256
// prettier-ignore
export const IV = new Uint32Array([
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
]);
// Mixing function G splitted in two halfs
function G1(a, b, c, d, x) {
a = (a + b + x) | 0;
d = rotr(d ^ a, 16);
c = (c + d) | 0;
b = rotr(b ^ c, 12);
return { a, b, c, d };
}
function G2(a, b, c, d, x) {
a = (a + b + x) | 0;
d = rotr(d ^ a, 8);
c = (c + d) | 0;
b = rotr(b ^ c, 7);
return { a, b, c, d };
}
// prettier-ignore
export function compress(s, offset, msg, rounds, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) {
let j = 0;
for (let i = 0; i < rounds; i++) {
({ a: v0, b: v4, c: v8, d: v12 } = G1(v0, v4, v8, v12, msg[offset + s[j++]]));
({ a: v0, b: v4, c: v8, d: v12 } = G2(v0, v4, v8, v12, msg[offset + s[j++]]));
({ a: v1, b: v5, c: v9, d: v13 } = G1(v1, v5, v9, v13, msg[offset + s[j++]]));
({ a: v1, b: v5, c: v9, d: v13 } = G2(v1, v5, v9, v13, msg[offset + s[j++]]));
({ a: v2, b: v6, c: v10, d: v14 } = G1(v2, v6, v10, v14, msg[offset + s[j++]]));
({ a: v2, b: v6, c: v10, d: v14 } = G2(v2, v6, v10, v14, msg[offset + s[j++]]));
({ a: v3, b: v7, c: v11, d: v15 } = G1(v3, v7, v11, v15, msg[offset + s[j++]]));
({ a: v3, b: v7, c: v11, d: v15 } = G2(v3, v7, v11, v15, msg[offset + s[j++]]));
({ a: v0, b: v5, c: v10, d: v15 } = G1(v0, v5, v10, v15, msg[offset + s[j++]]));
({ a: v0, b: v5, c: v10, d: v15 } = G2(v0, v5, v10, v15, msg[offset + s[j++]]));
({ a: v1, b: v6, c: v11, d: v12 } = G1(v1, v6, v11, v12, msg[offset + s[j++]]));
({ a: v1, b: v6, c: v11, d: v12 } = G2(v1, v6, v11, v12, msg[offset + s[j++]]));
({ a: v2, b: v7, c: v8, d: v13 } = G1(v2, v7, v8, v13, msg[offset + s[j++]]));
({ a: v2, b: v7, c: v8, d: v13 } = G2(v2, v7, v8, v13, msg[offset + s[j++]]));
({ a: v3, b: v4, c: v9, d: v14 } = G1(v3, v4, v9, v14, msg[offset + s[j++]]));
({ a: v3, b: v4, c: v9, d: v14 } = G2(v3, v4, v9, v14, msg[offset + s[j++]]));
}
return { v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15 };
}
class BLAKE2s extends BLAKE2 {
constructor(opts = {}) {
super(64, opts.dkLen === undefined ? 32 : opts.dkLen, opts, 32, 8, 8);
// Internal state, same as SHA-256
this.v0 = IV[0] | 0;
this.v1 = IV[1] | 0;
this.v2 = IV[2] | 0;
this.v3 = IV[3] | 0;
this.v4 = IV[4] | 0;
this.v5 = IV[5] | 0;
this.v6 = IV[6] | 0;
this.v7 = IV[7] | 0;
const keyLength = opts.key ? opts.key.length : 0;
this.v0 ^= this.outputLen | (keyLength << 8) | (0x01 << 16) | (0x01 << 24);
if (opts.salt) {
const salt = u32(toBytes(opts.salt));
this.v4 ^= salt[0];
this.v5 ^= salt[1];
}
if (opts.personalization) {
const pers = u32(toBytes(opts.personalization));
this.v6 ^= pers[0];
this.v7 ^= pers[1];
}
if (opts.key) {
// Pad to blockLen and update
const tmp = new Uint8Array(this.blockLen);
tmp.set(toBytes(opts.key));
this.update(tmp);
}
}
get() {
const { v0, v1, v2, v3, v4, v5, v6, v7 } = this;
return [v0, v1, v2, v3, v4, v5, v6, v7];
}
// prettier-ignore
set(v0, v1, v2, v3, v4, v5, v6, v7) {
this.v0 = v0 | 0;
this.v1 = v1 | 0;
this.v2 = v2 | 0;
this.v3 = v3 | 0;
this.v4 = v4 | 0;
this.v5 = v5 | 0;
this.v6 = v6 | 0;
this.v7 = v7 | 0;
}
compress(msg, offset, isLast) {
const { h, l } = u64.fromBig(BigInt(this.length));
// prettier-ignore
const { v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15 } = compress(SIGMA, offset, msg, 10, this.v0, this.v1, this.v2, this.v3, this.v4, this.v5, this.v6, this.v7, IV[0], IV[1], IV[2], IV[3], l ^ IV[4], h ^ IV[5], isLast ? ~IV[6] : IV[6], IV[7]);
this.v0 ^= v0 ^ v8;
this.v1 ^= v1 ^ v9;
this.v2 ^= v2 ^ v10;
this.v3 ^= v3 ^ v11;
this.v4 ^= v4 ^ v12;
this.v5 ^= v5 ^ v13;
this.v6 ^= v6 ^ v14;
this.v7 ^= v7 ^ v15;
}
destroy() {
this.destroyed = true;
this.buffer32.fill(0);
this.set(0, 0, 0, 0, 0, 0, 0, 0);
}
}
/**
* BLAKE2s - optimized for 32-bit platforms. JS doesn't have uint64, so it's faster than BLAKE2b.
* @param msg - message that would be hashed
* @param opts - dkLen, key, salt, personalization
*/
export const blake2s = wrapConstructorWithOpts((opts) => new BLAKE2s(opts));