import * as crypto from 'crypto';
const ALGORITHM = 'aes-256-cbc';
const SALT = 'mcp-email-salt';
export function encrypt(text: string, key: string): string {
const derivedKey = crypto.scryptSync(key, SALT, 32);
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipheriv(ALGORITHM, derivedKey, iv);
let encrypted = cipher.update(text, 'utf8', 'hex');
encrypted += cipher.final('hex');
return iv.toString('hex') + ':' + encrypted;
}
export function decrypt(encryptedText: string, key: string): string {
const derivedKey = crypto.scryptSync(key, SALT, 32);
const [ivHex, encrypted] = encryptedText.split(':');
const iv = Buffer.from(ivHex, 'hex');
const decipher = crypto.createDecipheriv(ALGORITHM, derivedKey, iv);
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
return decrypted;
}
