chore: mqsrv backend

src/utils/encryption.ts

@@ -0,0 +1,64 @@
+import crypto from 'crypto';
+
+const ALGORITHM = 'aes-256-cbc';
+const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY || '0123456789abcdef0123456789abcdef';
+
+export interface EncryptedData {
+  encrypted: boolean;
+  iv: string;
+  data: string;
+}
+
+/**
+ * AES 加密
+ */
+export function encrypt(text: string): EncryptedData {
+  const iv = crypto.randomBytes(16);
+  const key = Buffer.from(ENCRYPTION_KEY, 'utf-8');
+  
+  const cipher = crypto.createCipheriv(ALGORITHM, key, iv);
+  let encrypted = cipher.update(text, 'utf-8', 'hex');
+  encrypted += cipher.final('hex');
+  
+  return {
+    encrypted: true,
+    iv: iv.toString('hex'),
+    data: encrypted,
+  };
+}
+
+/**
+ * AES 解密
+ */
+export function decrypt(ivHex: string, dataHex: string): string {
+  const iv = Buffer.from(ivHex, 'hex');
+  const encryptedData = Buffer.from(dataHex, 'hex');
+  const key = Buffer.from(ENCRYPTION_KEY, 'utf-8');
+  
+  const decipher = crypto.createDecipheriv(ALGORITHM, key, iv);
+  let decrypted = decipher.update(encryptedData, undefined, 'utf-8');
+  decrypted += decipher.final('utf-8');
+  
+  return decrypted;
+}
+
+/**
+ * 密码哈希
+ */
+export function hashPassword(password: string): string {
+  return crypto.createHash('sha256').update(password).digest('hex');
+}
+
+/**
+ * 生成随机字符串
+ */
+export function randomString(length: number = 32): string {
+  return crypto.randomBytes(length).toString('hex').slice(0, length);
+}
+
+/**
+ * 生成设备哈希
+ */
+export function generateDeviceHash(data: string): string {
+  return crypto.createHash('sha256').update(data).digest('hex').slice(0, 64);
+}