直接帖代码
import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
import binascii
class AESCipher(object):
def __init__(self, key,iv):
self.bs = 16
#self.key = hashlib.sha256(key.encode()).digest()
self.key = key
self.iv = iv
def encrypt(self, raw):
raw = self._pad(raw)
#iv = Random.new().read(AES.block_size)
cipher = AES.new(self.key, AES.MODE_CBC, self.iv)
encrypt_bytes = cipher.encrypt(raw)
#return base64.b64encode(iv + cipher.encrypt(raw))
return binascii.hexlify(encrypt_bytes)
def decrypt(self, enc):
#enc = base64.b64decode(enc)
#iv = enc[:AES.block_size]
enc = enc.decode('hex')
cipher = AES.new(self.key, AES.MODE_CBC, self.iv)
decrypt_str = cipher.decrypt(enc).decode('utf-8')
#return self._unpad(cipher.decrypt(enc[AES.block_size:])).decode('utf-8')
return decrypt_str
def _pad(self, s):
#return s + (self.bs - len(s) % self.bs) * chr(self.bs - len(s) % self.bs)
padding_char = ' '
plaintext_bytes = s.encode(encoding='utf-8')
x = len(plaintext_bytes) % self.bs
pad_length = self.bs - x
for i in range(0,pad_length):
s = s + padding_char
return s
@staticmethod
def _unpad(s):
return s[:-ord(s[len(s)-1:])]