from Crypto.Cipher import AES
from binascii import b2a_hex, a2b_hex

class prpcrypt():
def init(self, key):
self.key = key
self.mode = AES.MODE_CBC

    # 加密函数，如果text不是16的倍数【加密文本text必须为16的倍数！】，那就补足为16的倍数

def encrypt(self, text):
    cryptor = AES.new(self.key, self.mode, self.key)
    text = text.encode("utf-8")
    # 这里密钥key 长度必须为16（AES-128）、24（AES-192）、或32（AES-256）Bytes 长度.目前AES-128足够用
    length = 16
    count = len(text)
    add = length - (count % length)
    text = text + (b'\0' * add)
    self.ciphertext = cryptor.encrypt(text)
    # 因为AES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
    return b2a_hex(self.ciphertext).decode("ASCII")

    # 解密后，去掉补足的空格用strip() 去掉

def decrypt(self, text):
    cryptor = AES.new(self.key, self.mode, self.key)
    plain_text = cryptor.decrypt(a2b_hex(text))
    return plain_text.rstrip(b'\0').decode("utf-8")

if name == '__main__':
pc = prpcrypt('keyskeyskeyskeys') # 初始化密钥
e = pc.encrypt("my book is free")
d = pc.decrypt(e)
print(e, d)
e = pc.encrypt("我是一个粉刷匠")
d = pc.decrypt(e)
print(e, d)

这是源代码,
Traceback (most recent call last):
File "C:/Users/Administrator/PycharmProjects/untitled9/test2.py", line 37, in
e = pc.encrypt("my book is free")
File "C:/Users/Administrator/PycharmProjects/untitled9/test2.py", line 15, in encrypt
cryptor = AES.new(self.key, self.mode, self.key)
File "C:\Python34\lib\site-packages\Crypto\Cipher\AES.py", line 200, in new
return create_cipher(sys.modules[_name__], key, mode, *args, **kwargs)
File "C:\Python34\lib\site-packages\Crypto\Cipher__init__.py", line 55, in _create_cipher
return modesmode
File "C:\Python34\lib\site-packages\Crypto\Cipher_mode_cbc.py", line 234, in _create_cbc_cipher
cipher_state = factory._create_base_cipher(kwargs)
File "C:\Python34\lib\site-packages\Crypto\Cipher\AES.py", line 100, in _create_base_cipher
result = start_operation(c_uint8_ptr(key),
File "C:\Python34\lib\site-packages\Crypto\Util_raw_api.py", line 151, in c_uint8_ptr
raise TypeError("Object type %s cannot be passed to C code" % type(data))
TypeError: Object type cannot be passed to C code
这是输出的错误信息,我用的Python34,请大神看看是什么错误 ,谢谢

Python 用strip()方法处理了数据以后打印len还是有长度

zhouxn921031

3个回复