案例

from Crypto.Cipher import AES

"""
AES加解密，windows和linux使用的库有区别，Crypto在linux和unix使用
"""


class AesCBC:
    @staticmethod
    def encrypt_cbc(data, key, iv):
        # aes加密 CBC ,padding:PKCS7
        cipher = AES.new(key, AES.MODE_CBC, iv)
        x = AES.block_size - (len(data) % AES.block_size)
        if x != 0:
            data = data + chr(x) * x
        msg = cipher.encrypt(data)
        return msg

    @staticmethod
    def decrypt_cbc(data, key, iv):
        # aes解密 CBC ,padding:PKCS7
        cipher = AES.new(key, AES.MODE_CBC, iv)
        msg = cipher.decrypt(data)
        padding_len = ord(msg[len(msg) - 1])
        return msg[0:-padding_len]