Merge 9ca4ebee0a527c96f7df43d2259ecc53c3b535c2 into 4290ea753912378913b1f3f54e0fc5720afeda5d
This commit is contained in:
Kyi Wong
GitHub
commit
5d8c5cbc68
@ -110,6 +110,7 @@
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"ChaCha",
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"Salsa20",
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"XSalsa20",
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"ZUC",
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"Rabbit",
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"SM4 Encrypt",
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"SM4 Decrypt",
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246
src/core/lib/ZUC.mjs
Normal file
246
src/core/lib/ZUC.mjs
Normal file
@ -0,0 +1,246 @@
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/**
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* @author Kyi Wong
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* @copyright Crown Copyright 2026
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* @license Apache-2.0
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*/
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/**
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* ZUC Stream Cipher implementation.
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* Based on the 3GPP ZUC specification.
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*/
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const S0 = [
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0x3E, 0x72, 0x5B, 0x47, 0xCA, 0xE0, 0x00, 0x33, 0x04, 0xD1, 0x54, 0x98, 0x09, 0xB9, 0x6D, 0xCB,
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0x7B, 0x1B, 0xF9, 0x32, 0xAF, 0x9D, 0x6A, 0xA5, 0xB8, 0x2D, 0xFC, 0x1D, 0x08, 0x53, 0x03, 0x90,
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0x4D, 0x4E, 0x84, 0x99, 0xE4, 0xCE, 0xD9, 0x91, 0xDD, 0xB6, 0x85, 0x48, 0x8B, 0x29, 0x6E, 0xAC,
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0xCD, 0xC1, 0xF8, 0x1E, 0x73, 0x43, 0x69, 0xC6, 0xB5, 0xBD, 0xFD, 0x39, 0x63, 0x20, 0xD4, 0x38,
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0x76, 0x7D, 0xB2, 0xA7, 0xCF, 0xED, 0x57, 0xC5, 0xF3, 0x2C, 0xBB, 0x14, 0x21, 0x06, 0x55, 0x9B,
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0xE3, 0xEF, 0x5E, 0x31, 0x4F, 0x7F, 0x5A, 0xA4, 0x0D, 0x82, 0x51, 0x49, 0x5F, 0xBA, 0x58, 0x1C,
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0x4A, 0x16, 0xD5, 0x17, 0xA8, 0x92, 0x24, 0x1F, 0x8C, 0xFF, 0xD8, 0xAE, 0x2E, 0x01, 0xD3, 0xAD,
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0x3B, 0x4B, 0xDA, 0x46, 0xEB, 0xC9, 0xDE, 0x9A, 0x8F, 0x87, 0xD7, 0x3A, 0x80, 0x6F, 0x2F, 0xC8,
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0xB1, 0xB4, 0x37, 0xF7, 0x0A, 0x22, 0x13, 0x28, 0x7C, 0xCC, 0x3C, 0x89, 0xC7, 0xC3, 0x96, 0x56,
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0x07, 0xBF, 0x7E, 0xF0, 0x0B, 0x2B, 0x97, 0x52, 0x35, 0x41, 0x79, 0x61, 0xA6, 0x4C, 0x10, 0xFE,
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0xBC, 0x26, 0x95, 0x88, 0x8A, 0xB0, 0xA3, 0xFB, 0xC0, 0x18, 0x94, 0xF2, 0xE1, 0xE5, 0xE9, 0x5D,
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0xD0, 0xDC, 0x11, 0x66, 0x64, 0x5C, 0xEC, 0x59, 0x42, 0x75, 0x12, 0xF5, 0x74, 0x9C, 0xAA, 0x23,
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0x0E, 0x86, 0xAB, 0xBE, 0x2A, 0x02, 0xE7, 0x67, 0xE6, 0x44, 0xA2, 0x6C, 0xC2, 0x93, 0x9F, 0xF1,
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0xF6, 0xFA, 0x36, 0xD2, 0x50, 0x68, 0x9E, 0x62, 0x71, 0x15, 0x3D, 0xD6, 0x40, 0xC4, 0xE2, 0x0F,
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0x8E, 0x83, 0x77, 0x6B, 0x25, 0x05, 0x3F, 0x0C, 0x30, 0xEA, 0x70, 0xB7, 0xA1, 0xE8, 0xA9, 0x65,
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0x8D, 0x27, 0x1A, 0xDB, 0x81, 0xB3, 0xA0, 0xF4, 0x45, 0x7A, 0x19, 0xDF, 0xEE, 0x78, 0x34, 0x60
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];
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const S1 = [
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0x55, 0xC2, 0x63, 0x71, 0x3B, 0xC8, 0x47, 0x86, 0x9F, 0x3C, 0xDA, 0x5B, 0x29, 0xAA, 0xFD, 0x77,
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0x8C, 0xC5, 0x94, 0x0C, 0xA6, 0x1A, 0x13, 0x00, 0xE3, 0xA8, 0x16, 0x72, 0x40, 0xF9, 0xF8, 0x42,
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0x44, 0x26, 0x68, 0x96, 0x81, 0xD9, 0x45, 0x3E, 0x10, 0x76, 0xC6, 0xA7, 0x8B, 0x39, 0x43, 0xE1,
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0x3A, 0xB5, 0x56, 0x2A, 0xC0, 0x6D, 0xB3, 0x05, 0x22, 0x66, 0xBF, 0xDC, 0x0B, 0xFA, 0x62, 0x48,
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0xDD, 0x20, 0x11, 0x06, 0x36, 0xC9, 0xC1, 0xCF, 0xF6, 0x27, 0x52, 0xBB, 0x69, 0xF5, 0xD4, 0x87,
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0x7F, 0x84, 0x4C, 0xD2, 0x9C, 0x57, 0xA4, 0xBC, 0x4F, 0x9A, 0xDF, 0xFE, 0xD6, 0x8D, 0x7A, 0xEB,
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0x2B, 0x53, 0xD8, 0x5C, 0xA1, 0x14, 0x17, 0xFB, 0x23, 0xD5, 0x7D, 0x30, 0x67, 0x73, 0x08, 0x09,
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0xEE, 0xB7, 0x70, 0x3F, 0x61, 0xB2, 0x19, 0x8E, 0x4E, 0xE5, 0x4B, 0x93, 0x8F, 0x5D, 0xDB, 0xA9,
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0xAD, 0xF1, 0xAE, 0x2E, 0xCB, 0x0D, 0xFC, 0xF4, 0x2D, 0x46, 0x6E, 0x1D, 0x97, 0xE8, 0xD1, 0xE9,
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0x4D, 0x37, 0xA5, 0x75, 0x5E, 0x83, 0x9E, 0xAB, 0x82, 0x9D, 0xB9, 0x1C, 0xE0, 0xCD, 0x49, 0x89,
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0x01, 0xB6, 0xBD, 0x58, 0x24, 0xA2, 0x5F, 0x38, 0x78, 0x99, 0x15, 0x90, 0x50, 0xB8, 0x95, 0xE4,
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0xD0, 0x91, 0xC7, 0xCE, 0xED, 0x0F, 0xB4, 0x6F, 0xA0, 0xCC, 0xF0, 0x02, 0x4A, 0x79, 0xC3, 0xDE,
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0xA3, 0xEF, 0xEA, 0x51, 0xE6, 0x6B, 0x18, 0xEC, 0x1B, 0x2C, 0x80, 0xF7, 0x74, 0xE7, 0xFF, 0x21,
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0x5A, 0x6A, 0x54, 0x1E, 0x41, 0x31, 0x92, 0x35, 0xC4, 0x33, 0x07, 0x0A, 0xBA, 0x7E, 0x0E, 0x34,
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0x88, 0xB1, 0x98, 0x7C, 0xF3, 0x3D, 0x60, 0x6C, 0x7B, 0xCA, 0xD3, 0x1F, 0x32, 0x65, 0x04, 0x28,
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0x64, 0xBE, 0x85, 0x9B, 0x2F, 0x59, 0x8A, 0xD7, 0xB0, 0x25, 0xAC, 0xAF, 0x12, 0x03, 0xE2, 0xF2
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];
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const D = [
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0x44D7, 0x26BC, 0x626B, 0x135E, 0x5789, 0x35E2, 0x7135, 0x09AF,
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0x4D78, 0x2F13, 0x6BC4, 0x1AF1, 0x5E26, 0x3C4D, 0x789A, 0x47AC
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];
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/**
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*
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*/
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class ZUC {
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/**
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* @param {Uint8Array} key - 16 bytes
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* @param {Uint8Array} iv - 16 bytes
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*/
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constructor(key, iv) {
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if (key.length !== 16 || iv.length !== 16) {
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throw new Error("ZUC requires a 16-byte key and a 16-byte IV.");
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}
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this.LFSR = new Uint32Array(16);
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this.R1 = 0;
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this.R2 = 0;
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// Initialization
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for (let i = 0; i < 16; i++) {
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this.LFSR[i] = ((key[i] << 23) | (D[i] << 8) | iv[i]) >>> 0;
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}
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for (let i = 0; i < 32; i++) {
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this.bitReconstruction();
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const W = this.F();
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this.LFSRWithInitialisationMode(W >>> 1);
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}
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// Discard step before working mode
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this.bitReconstruction();
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this.F();
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this.LFSRWithWorkMode();
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}
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/**
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*
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*/
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addM(a, b) {
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const c = Number(a) + Number(b);
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const high = Math.floor(c / 0x80000000);
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const low = c % 0x80000000;
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return (low + high) >>> 0;
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}
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/**
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* @param {number} u
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*/
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LFSRWithInitialisationMode(u) {
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let v = this.LFSR[15];
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const f = this.LFSR[13];
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v = this.addM(v * Math.pow(2, 15), f * Math.pow(2, 17));
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v = this.addM(v, this.LFSR[10] * Math.pow(2, 21));
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v = this.addM(v, this.LFSR[4] * Math.pow(2, 20));
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v = this.addM(v, this.LFSR[0] * Math.pow(2, 8));
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v = this.addM(v, this.LFSR[0]);
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let s16 = this.addM(v, u);
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if (s16 === 0) s16 = 0x7fffffff;
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for (let i = 0; i < 15; i++) {
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this.LFSR[i] = this.LFSR[i + 1];
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}
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this.LFSR[15] = s16;
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}
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/**
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* Updates LFSR in work mode
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*/
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LFSRWithWorkMode() {
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const v = this.LFSR[15];
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const f = this.LFSR[13];
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let s16 = this.addM(v * Math.pow(2, 15), f * Math.pow(2, 17));
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s16 = this.addM(s16, this.LFSR[10] * Math.pow(2, 21));
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s16 = this.addM(s16, this.LFSR[4] * Math.pow(2, 20));
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s16 = this.addM(s16, this.LFSR[0] * Math.pow(2, 8));
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s16 = this.addM(s16, this.LFSR[0]);
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if (s16 === 0) s16 = 0x7fffffff;
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for (let i = 0; i < 15; i++) {
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this.LFSR[i] = this.LFSR[i + 1];
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}
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this.LFSR[15] = s16;
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}
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/**
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* Bit reconstruction step
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*/
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/**
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* Bit reconstruction step
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*/
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bitReconstruction() {
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this.X0 = (((this.LFSR[15] >>> 15) << 16) | (this.LFSR[14] & 0xFFFF)) >>> 0;
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this.X1 = (((this.LFSR[11] & 0xFFFF) << 16) | (this.LFSR[9] >>> 15)) >>> 0;
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this.X2 = (((this.LFSR[7] & 0xFFFF) << 16) | (this.LFSR[5] >>> 15)) >>> 0;
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this.X3 = (((this.LFSR[2] & 0xFFFF) << 16) | (this.LFSR[0] >>> 15)) >>> 0;
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}
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/**
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* S-box substitution
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* @param {number} x
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* @returns {number}
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*/
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S(x) {
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const x0 = (x >>> 24) & 0xFF;
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const x1 = (x >>> 16) & 0xFF;
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const x2 = (x >>> 8) & 0xFF;
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const x3 = x & 0xFF;
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return ((S0[x0] << 24) | (S1[x1] << 16) | (S0[x2] << 8) | S1[x3]) >>> 0;
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}
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/**
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* Rotate left 32 bit
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* @param {number} x
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* @param {number} k
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* @returns {number}
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*/
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rotL32(x, k) {
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return ((x << k) | (x >>> (32 - k))) >>> 0;
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}
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/**
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* Linear transform L1
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* @param {number} x
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* @returns {number}
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*/
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L1(x) {
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return (x ^ this.rotL32(x, 2) ^ this.rotL32(x, 10) ^ this.rotL32(x, 18) ^ this.rotL32(x, 24)) >>> 0;
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}
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/**
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* Linear transform L2
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* @param {number} x
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* @returns {number}
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*/
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L2(x) {
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return (x ^ this.rotL32(x, 8) ^ this.rotL32(x, 14) ^ this.rotL32(x, 22) ^ this.rotL32(x, 30)) >>> 0;
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}
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/**
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* F function
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* @returns {number}
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*/
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F() {
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const W = ((this.X0 ^ this.R1) >>> 0) + this.R2;
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const W1 = (this.R1 + this.X1) >>> 0;
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const W2 = (this.R2 ^ this.X2) >>> 0;
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const u = (((W1 & 0xFFFF) << 16) | (W2 >>> 16)) >>> 0;
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const v = (((W2 & 0xFFFF) << 16) | (W1 >>> 16)) >>> 0;
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this.R1 = this.S(this.L1(u));
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this.R2 = this.S(this.L2(v));
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return W >>> 0;
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}
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/**
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* @returns {number} 32-bit keystream word
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*/
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generateKeystreamWord() {
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this.bitReconstruction();
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const W = this.F();
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const Z = (W ^ this.X3) >>> 0;
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this.LFSRWithWorkMode();
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return Z;
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}
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/**
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* Encrypts or decrypts data
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* @param {Uint8Array} data
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* @returns {Uint8Array}
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*/
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process(data) {
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const length = data.length;
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const result = new Uint8Array(length);
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for (let i = 0; i < length; i++) {
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if (i % 4 === 0) {
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this.currentZ = this.generateKeystreamWord();
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}
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const shift = 24 - ((i % 4) * 8);
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const keyByte = (this.currentZ >>> shift) & 0xFF;
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result[i] = data[i] ^ keyByte;
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}
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return result;
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}
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}
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export default ZUC;
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150
src/core/operations/ZUC.mjs
Normal file
150
src/core/operations/ZUC.mjs
Normal file
@ -0,0 +1,150 @@
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/**
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* @author Kyi Wong
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* @copyright Crown Copyright 2026
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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import { format } from "../lib/Ciphers.mjs";
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import ZucAlgo from "../lib/ZUC.mjs";
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import { fromHex, toHex } from "../lib/Hex.mjs";
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import { toBase64, fromBase64 } from "../lib/Base64.mjs";
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/**
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* ZUC operation
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*/
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class ZUC extends Operation {
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/**
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* ZUC constructor
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*/
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constructor() {
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super();
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this.name = "ZUC";
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this.module = "Ciphers";
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this.description = "ZUC is a stream cipher designed by the Chinese Academy of Sciences. It forms the core of the 3GPP confidentiality algorithm 128-EEA3 and the 3GPP integrity algorithm 128-EIA3. The cipher takes a 128-bit key and a 128-bit Initialization Vector (IV) and generates a keystream of 32-bit words.";
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this.infoURL = "https://en.wikipedia.org/wiki/ZUC_stream_cipher";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [
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{
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"name": "Key",
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"type": "toggleString",
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"value": "",
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"toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
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},
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{
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"name": "IV",
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"type": "toggleString",
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"value": "",
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"toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
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},
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{
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"name": "Input format",
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"type": "option",
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"value": ["Latin1", "UTF8", "Hex", "Base64"]
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},
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{
|
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"name": "Output format",
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"type": "option",
|
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"value": ["Latin1", "UTF8", "Hex", "Base64"]
|
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}
|
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];
|
||||
}
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|
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/**
|
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* Parse input to Uint8Array based on format
|
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* @param {string} input
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* @param {string} formatType
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* @returns {Uint8Array}
|
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*/
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_parseInput(input, formatType) {
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if (!input) return new Uint8Array(0);
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switch (formatType) {
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case "Hex":
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return new Uint8Array(fromHex(input));
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case "Base64":
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return new Uint8Array(fromBase64(input));
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case "UTF8":
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case "Latin1":
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default: {
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// Fallback to CryptoJS for string formats
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const words = format[formatType].parse(input);
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const bytes = new Uint8Array(words.sigBytes);
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for (let i = 0; i < words.sigBytes; i++) {
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bytes[i] = (words.words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
|
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}
|
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return bytes;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Format Uint8Array to string based on format
|
||||
* @param {Uint8Array} bytes
|
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* @param {string} formatType
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||||
* @returns {string}
|
||||
*/
|
||||
_formatOutput(bytes, formatType) {
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||||
if (bytes.length === 0) return "";
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switch (formatType) {
|
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case "Hex":
|
||||
return toHex(bytes).replace(/\s/g, ""); // Ensure pure hex output for test vectors and CyberChef defaults
|
||||
case "Base64":
|
||||
return toBase64(bytes);
|
||||
case "UTF8":
|
||||
case "Latin1":
|
||||
default: {
|
||||
const words = [];
|
||||
for (let i = 0; i < bytes.length; i++) {
|
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words[i >>> 2] |= bytes[i] << (24 - (i % 4) * 8);
|
||||
}
|
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const wordObj = { words: words, sigBytes: bytes.length };
|
||||
return format[formatType].stringify(wordObj);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {string} input
|
||||
* @param {Object[]} args
|
||||
* @returns {string}
|
||||
*/
|
||||
run(input, args) {
|
||||
const keyInput = args[0].string;
|
||||
const keyFormat = args[0].option;
|
||||
const ivInput = args[1].string;
|
||||
const ivFormat = args[1].option;
|
||||
const inputFormat = args[2];
|
||||
const outputFormat = args[3];
|
||||
|
||||
if (!keyInput || !ivInput) {
|
||||
return input; // Do nothing if key or iv are not provided
|
||||
}
|
||||
|
||||
const keyBytes = this._parseInput(keyInput, keyFormat);
|
||||
const ivBytes = this._parseInput(ivInput, ivFormat);
|
||||
|
||||
if (keyBytes.length !== 16) {
|
||||
throw new Error(`Invalid Key length: expected 16 bytes, got ${keyBytes.length} bytes.`);
|
||||
}
|
||||
if (ivBytes.length !== 16) {
|
||||
throw new Error(`Invalid IV length: expected 16 bytes, got ${ivBytes.length} bytes.`);
|
||||
}
|
||||
|
||||
const messageBytes = this._parseInput(input, inputFormat);
|
||||
|
||||
if (messageBytes.length === 0) {
|
||||
return "";
|
||||
}
|
||||
|
||||
const zuc = new ZucAlgo(keyBytes, ivBytes);
|
||||
const outputBytes = zuc.process(messageBytes);
|
||||
|
||||
return this._formatOutput(outputBytes, outputFormat);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
export default ZUC;
|
||||
@ -884,6 +884,16 @@ pCGTErs=
|
||||
"7d17e60d9bc94b7f4095851c729e69a2");
|
||||
}),
|
||||
|
||||
it("ZUC", () => {
|
||||
// Using standard test vectors for ZUC
|
||||
assert.strictEqual(
|
||||
chef.ZUC("00000000000000000000000000000000", {key: {string: "00000000000000000000000000000000", option: "Hex"}, iv: {string: "00000000000000000000000000000000", option: "Hex"}, inputFormat: "Hex", outputFormat: "Hex"}).toString(),
|
||||
"27bede74018082da87d4e5b69f18bf66");
|
||||
assert.strictEqual(
|
||||
chef.ZUC("00000000000000000000000000000000", {key: {string: "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", option: "Hex"}, iv: {string: "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", option: "Hex"}, inputFormat: "Hex", outputFormat: "Hex"}).toString(),
|
||||
"0657cfa07096398b734b6cb4883eedf4");
|
||||
}),
|
||||
|
||||
it("RC4 Drop", () => {
|
||||
assert.strictEqual(
|
||||
chef.RC4Drop("Go Out On a Limb", {passphrase: {string: "Under Your Nose", option: "UTF8"}, inputFormat: "UTF8", outputFormat: "Hex"}).toString(),
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user