MOD:aes try exception

@@ -6,9 +6,15 @@ def aes_encrypt_cbc(data, key, iv):
     return cipher.encrypt(data)
     return cipher.encrypt(data)
  
  
 def aes_decrypt_cbc(data, key, iv):
 def aes_decrypt_cbc(data, key, iv):
+    res = ''
+    try:
         cipher = AES.new(key.encode(), AES.MODE_CBC, iv.encode())
         cipher = AES.new(key.encode(), AES.MODE_CBC, iv.encode())
         res = cipher.decrypt(b64decode(data))
         res = cipher.decrypt(b64decode(data))
-    return res.decode('utf-8')
+        res = res.decode('utf-8')
+    except Exception as e:
+        res = ''
+    return res
+
  
  
 # 示例使用
 # 示例使用
 key = 'm0XsOHC52YZ5KtakhpuMSZtF7DhwudmG'  # 密钥长度必须是16、24或32字节
 key = 'm0XsOHC52YZ5KtakhpuMSZtF7DhwudmG'  # 密钥长度必须是16、24或32字节