crypto-keygen-suite/keyGen/hexkeyGenerator.js

Key generation utilities for cryptographic operations. YES I RENAMED IT OMG BASES AND PROTOCOLS!!! See its folder for all <3

import crypto from 'crypto';

function getKeyLength(method) {
    switch (method) {
        case 'aes-128-cbc':
        case 'aes-128-ecb':
        case 'aes-128-gcm':
        case 'aes-128-ccm':
        case 'aes-128-xts':
        case 'aes-128-ofb':
            return 16; // 16 bytes 
        case 'aes-192-cbc':
        case 'aes-192-ecb':
        case 'aes-192-gcm':
        case 'aes-192-ccm':
        case 'aes-192-xts':
        case 'aes-192-ofb':
            return 24; // 24 bytes
        case 'aes-256-cbc':
        case 'aes-256-ecb':
        case 'aes-256-gcm':
        case 'aes-256-ccm':
        case 'aes-256-xts':
        case 'aes-256-ofb':
            return 32; // 32 bytes 
        case 'des-ede3-cbc':
            return 24; // 24 bytes 
        case 'rc4':
            return 16; // 16 bytes
        case 'blowfish-cbc':
            return 32; // 32 bytes
        case 'cast5-cbc':
            return 16; // 16 bytes  
        default:
            throw new Error('Unsupported encryption method.');
    }
}

function generateHexKey(length) {
    return crypto.randomBytes(length).toString('hex');
}

const args = process.argv.slice(2);
const method = args[0]; 

try {
    const keyLength = getKeyLength(method);
    const hexKey = generateHexKey(keyLength);
    console.log(`Generated Hex Key for ${method} (${keyLength * 2} characters): ${hexKey}`);
} catch (error) {
    console.error('Error:', error.message);
    process.exit(1);
}