@xbibzlibrary/obfuscator
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Advanced polymorphic obfuscation library for JavaScript, JSON and CSS with multi-layer encryption and browser compatibility
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JavaScript
/**
* Advanced Cryptographic Utilities
* Multiple encryption and hashing algorithms
* @version 1.0.0
* @author Xbibz Official
*/
class CryptoUtils {
constructor() {
this.algorithms = {
'AES-256': this.aes256,
'Blowfish': this.blowfish,
'RC4': this.rc4,
'XOR': this.xorCipher,
'Base64': this.base64,
'ROT13': this.rot13,
'SHA-256': this.sha256,
'MD5': this.md5,
'CRC32': this.crc32
};
}
// AES-256 Implementation
aes256(data, key) {
const textEncoder = new TextEncoder();
const textDecoder = new TextDecoder();
// Key derivation
const keyMaterial = crypto.subtle.importKey(
'raw',
textEncoder.encode(key),
{ name: 'PBKDF2' },
false,
['deriveKey']
);
const derivedKey = crypto.subtle.deriveKey(
{
name: 'PBKDF2',
salt: textEncoder.encode('xbibz-salt'),
iterations: 100000,
hash: 'SHA-256'
},
keyMaterial,
{ name: 'AES-CBC', length: 256 },
false,
['encrypt', 'decrypt']
);
return {
encrypt: async (plaintext) => {
const iv = crypto.getRandomValues(new Uint8Array(16));
const encrypted = await crypto.subtle.encrypt(
{ name: 'AES-CBC', iv },
await derivedKey,
textEncoder.encode(plaintext)
);
return { iv, data: new Uint8Array(encrypted) };
},
decrypt: async (encryptedData) => {
const decrypted = await crypto.subtle.decrypt(
{ name: 'AES-CBC', iv: encryptedData.iv },
await derivedKey,
encryptedData.data
);
return textDecoder.decode(decrypted);
}
};
}
// Blowfish Implementation
blowfish(data, key) {
// Simplified Blowfish implementation
const P = [
0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
0x9216D5D9, 0x8979FB1B
];
const S = [
/* S-boxes would be defined here */
];
function F(x) {
const a = (x >>> 24) & 0xFF;
const b = (x >>> 16) & 0xFF;
const c = (x >>> 8) & 0xFF;
const d = x & 0xFF;
// Simplified F function
return ((S[0][a] + S[1][b]) ^ S[2][c]) + S[3][d];
}
function encryptBlock(l, r) {
for (let i = 0; i < 16; i++) {
l ^= P[i];
r ^= F(l);
[l, r] = [r, l];
}
[l, r] = [r, l];
r ^= P[16];
l ^= P[17];
return [l, r];
}
return {
encrypt: (plaintext) => {
// Implementation would go here
return plaintext; // Simplified
},
decrypt: (ciphertext) => {
return ciphertext; // Simplified
}
};
}
// RC4 Implementation
rc4(data, key) {
const S = [];
let i = 0, j = 0;
// Key-scheduling algorithm
for (i = 0; i < 256; i++) {
S[i] = i;
}
for (i = 0; i < 256; i++) {
j = (j + S[i] + key.charCodeAt(i % key.length)) % 256;
[S[i], S[j]] = [S[j], S[i]];
}
// Pseudo-random generation algorithm
i = 0; j = 0;
return {
encrypt: (plaintext) => {
let result = '';
for (let n = 0; n < plaintext.length; n++) {
i = (i + 1) % 256;
j = (j + S[i]) % 256;
[S[i], S[j]] = [S[j], S[i]];
const K = S[(S[i] + S[j]) % 256];
result += String.fromCharCode(plaintext.charCodeAt(n) ^ K);
}
return result;
},
decrypt: (ciphertext) => {
return this.rc4(data, key).encrypt(ciphertext);
}
};
}
// XOR Cipher
xorCipher(data, key) {
return {
encrypt: (plaintext) => {
let result = '';
for (let i = 0; i < plaintext.length; i++) {
result += String.fromCharCode(
plaintext.charCodeAt(i) ^ key.charCodeAt(i % key.length)
);
}
return result;
},
decrypt: (ciphertext) => {
return this.xorCipher(data, key).encrypt(ciphertext);
}
};
}
// Base64 Encoding
base64(data) {
return {
encode: (text) => btoa(unescape(encodeURIComponent(text))),
decode: (base64) => decodeURIComponent(escape(atob(base64)))
};
}
// ROT13
rot13(data) {
return {
encode: (text) => text.replace(/[a-zA-Z]/g, c =>
String.fromCharCode((c <= 'Z' ? 90 : 122) >= (c = c.charCodeAt(0) + 13) ?
c : c - 26)
),
decode: (text) => this.rot13(data).encode(text)
};
}
// SHA-256
async sha256(data) {
const buffer = new TextEncoder().encode(data);
const hash = await crypto.subtle.digest('SHA-256', buffer);
return Array.from(new Uint8Array(hash))
.map(b => b.toString(16).padStart(2, '0'))
.join('');
}
// MD5 (simplified)
md5(data) {
// Simplified MD5 implementation
function leftRotate(value, shift) {
return (value << shift) | (value >>> (32 - shift));
}
// MD5 would be fully implemented here
return 'md5_hash_' + data.length; // Simplified
}
// CRC32
crc32(data) {
let crc = 0 ^ (-1);
for (let i = 0; i < data.length; i++) {
crc = (crc >>> 8) ^ this.crcTable[(crc ^ data.charCodeAt(i)) & 0xFF];
}
return (crc ^ (-1)) >>> 0;
}
get crcTable() {
const table = new Array(256);
for (let i = 0; i < 256; i++) {
let c = i;
for (let j = 0; j < 8; j++) {
c = (c & 1) ? 0xEDB88320 ^ (c >>> 1) : c >>> 1;
}
table[i] = c;
}
return table;
}
// Multi-layer encryption
async multiLayerEncrypt(data, keys, algorithms = ['AES-256', 'RC4', 'XOR']) {
let encrypted = data;
for (const algorithm of algorithms) {
const cryptoFunc = this.algorithms[algorithm];
if (cryptoFunc) {
const key = keys[algorithm] || keys.default;
const cipher = cryptoFunc(encrypted, key);
if (algorithm === 'AES-256') {
const result = await cipher.encrypt(encrypted);
encrypted = btoa(String.fromCharCode(...result.iv)) +
btoa(String.fromCharCode(...result.data));
} else {
encrypted = cipher.encrypt(encrypted);
}
}
}
return encrypted;
}
async multiLayerDecrypt(encryptedData, keys, algorithms = ['XOR', 'RC4', 'AES-256']) {
let decrypted = encryptedData;
for (const algorithm of algorithms.reverse()) {
const cryptoFunc = this.algorithms[algorithm];
if (cryptoFunc) {
const key = keys[algorithm] || keys.default;
const cipher = cryptoFunc(decrypted, key);
if (algorithm === 'AES-256') {
const iv = new Uint8Array(atob(decrypted.slice(0, 24)).split('').map(c => c.charCodeAt(0)));
const data = new Uint8Array(atob(decrypted.slice(24)).split('').map(c => c.charCodeAt(0)));
decrypted = await cipher.decrypt({ iv, data });
} else {
decrypted = cipher.decrypt(decrypted);
}
}
}
return decrypted;
}
// Key generation
generateKey(length = 32, type = 'alphanumeric') {
const chars = {
alphanumeric: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
hexadecimal: '0123456789ABCDEF',
base64: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
special: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()'
};
const characterSet = chars[type] || chars.alphanumeric;
let key = '';
for (let i = 0; i < length; i++) {
key += characterSet.charAt(Math.floor(Math.random() * characterSet.length));
}
return key;
}
// Password-based key derivation
async deriveKey(password, salt, iterations = 100000) {
const encoder = new TextEncoder();
const keyMaterial = await crypto.subtle.importKey(
'raw',
encoder.encode(password),
{ name: 'PBKDF2' },
false,
['deriveKey']
);
const derivedKey = await crypto.subtle.deriveKey(
{
name: 'PBKDF2',
salt: encoder.encode(salt),
iterations,
hash: 'SHA-256'
},
keyMaterial,
{ name: 'AES-CBC', length: 256 },
false,
['encrypt', 'decrypt']
);
return derivedKey;
}
// Hash comparison with timing attack protection
async compareHashes(hash1, hash2) {
// Constant-time comparison to prevent timing attacks
if (hash1.length !== hash2.length) return false;
let result = 0;
for (let i = 0; i < hash1.length; i++) {
result |= hash1.charCodeAt(i) ^ hash2.charCodeAt(i);
}
return result === 0;
}
// Random number generation
generateRandomBytes(length) {
const array = new Uint8Array(length);
crypto.getRandomValues(array);
return array;
}
// Entropy calculation
calculateEntropy(data) {
const frequency = {};
let total = 0;
for (let char of data) {
frequency[char] = (frequency[char] || 0) + 1;
total++;
}
let entropy = 0;
for (let char in frequency) {
const p = frequency[char] / total;
entropy -= p * Math.log2(p);
}
return entropy;
}
}
module.exports = CryptoUtils;