问题一:decrypt() cannot be called after encrypt() 运行时报告:Exception has occurred: TypeError, decrypt() cannot be called after encrypt() 出现这个问题的原因,在encrypt / decrypt函数中有说明,由于encrypt / decrypt是stateful,不能用加密的对象再去解蜜; A cipher object is stateful: once you have ...
The docstring for the decrypt() function does mention: A cipher object is stateful: once you have decrypted a message you cannot decrypt (or encrypt) another message with the same object. So apparently you need to create a new cipher object after encryption to do the decryption. The officia...
问题⼀：decrypt() cannot be called after encrypt() 运⾏时报告：Exception has occurred: TypeError， decrypt() cannot be called after encrypt() 出现这个问题的原因，在encrypt / decrypt函数中有说明，由于encrypt / decrypt是stateful，不能⽤加密的对象再去解蜜； A cipher object is stateful...
self.ciphertext=rsa.encrypt(text.encode(), self.pubkey)#因为rsa加密时候得到的字符串不一定是ascii字符集的,输出到终端或者保存时候可能存在问题#所以这里统一把加密后的字符串转化为16进制字符串returnb2a_hex(self.ciphertext)defdecrypt(self, text): decrypt_text=rsa.decrypt(a2b_hex(text), prikey)return...
通过上面CBC模式的例子,可以简单看出CBC模式与ECB模式的区别:AES.new() 解密和加密重新生成了aes对象,加密和解密不能调用同一个aes对象,否则会报错TypeError: decrypt() cannot be called after encrypt()。 总结: 1. 在Python中进行AES加密解密时,所传入的密文、明文、秘钥、iv偏移量、都需要是bytes(字节型)数据...
decrypt() cannot be called after encrypt() for the CBC mode import uuid from Crypto.Cipher import AES from Crypto.Util.Padding import pad, unpad def get_key(len=16): """获取指定位数的动态密钥 """ key = str(uuid.uuid4()).replace('-', '')[0:len].upper() ...
decrypt() cannot be called after encrypt()""" return AES.new(self.key.encode('utf-8'), self.mode, **self.kwargs) def encrypt(self, plain_text): # 选择pkcs7补全 pad_pkcs7 = pad(plain_text.encode('utf-8'), AES.block_size) encrypt_data = self._get_aes().encrypt(pad_pkcs7) ...
当程序找到正确的密钥时,通过用第 38 行的密钥调用decryptMessage()来解密消息: decryptedText = affineCipher.decryptMessage(key, message)if not SILENT_MODE:print('Tried Key %s... (%s)' % (key, decryptedText[:40])) 如果SILENT_MODE被设置为False,则Tried Key消息被打印在屏幕上,但是如果它被设置为...
())# 使用公钥加密消息ciphertext=public_key.encrypt(message,padding.OAEP(mgf=padding.MGF1(algorithm=hashes.SHA256()),algorithm=hashes.SHA256(),label=None))# 输出加密后的密文print("Encrypted message:",ciphertext)# 解密过程# 使用私钥解密密文decrypted_message=private_key.decrypt(ciphertext,padding...
这会导致程序执行跳回到下一次迭代的循环起点。结果,如果密钥无效,程序跳过对第 38 行的decryptMessage()的调用,继续尝试其他密钥,直到找到正确的密钥。 当程序找到正确的密钥时,通过用第 38 行的密钥调用decryptMessage()来解密消息: 代码语言:javascript 复制 decryptedText = affineCipher.decryptMessage(key, ...