优化

server/lib/crypto/des.ts

@@ -0,0 +1,24 @@
+import crypto from 'crypto';
+import { config } from 'tailchat-server-sdk';
+
+// DES 加密
+export function desEncrypt(message: string, key: string = config.secret) {
+  key =
+    key.length >= 8 ? key.slice(0, 8) : key.concat('0'.repeat(8 - key.length));
+  const keyHex = new Buffer(key);
+  const cipher = crypto.createCipheriv('des-cbc', keyHex, keyHex);
+  let c = cipher.update(message, 'utf8', 'base64');
+  c += cipher.final('base64');
+  return c;
+}
+
+// DES 解密
+export function desDecrypt(text: string, key: string = config.secret) {
+  key =
+    key.length >= 8 ? key.slice(0, 8) : key.concat('0'.repeat(8 - key.length));
+  const keyHex = new Buffer(key);
+  const cipher = crypto.createDecipheriv('des-cbc', keyHex, keyHex);
+  let c = cipher.update(text, 'base64', 'utf8');
+  c += cipher.final('utf8');
+  return c;
+}