安装依赖库
pip install pycryptodomefrom binascii import b2a_base64, a2b_base64 from Crypto.Cipher import AES class AES_CBC(): def __init__(self, key, iv): # key必须为16位字符串 self.key = bytes(key, encoding='utf-8') self.iv = bytes(iv, encoding='utf-8') # 加密。text:需要加密的内容 def encrypt(self, text): cryptor = AES.new(self.key, AES.MODE_CBC, self.iv) bs = 16 length = len(text) bytes_length = len(bytes(text, encoding='utf-8')) # tips：utf-8编码时，英文占1个byte，而中文占3个byte padding_size = length if (bytes_length == length) else bytes_length padding = bs - padding_size % bs # tips：chr(padding)看与其它语言的约定，有的会使用'\0' padding_text = chr(padding) * padding text = text + padding_text ciphertext = cryptor.encrypt(bytes(text, encoding='utf-8')) return b2a_base64(ciphertext) # 解密 def decrypt(self, content): cipher = AES.new(self.key, AES.MODE_CBC, self.iv) encrypt_bytes = a2b_base64(content) decrypt_bytes = cipher.decrypt(encrypt_bytes) text = str(decrypt_bytes, encoding='utf-8') length = len(text) unpadding = ord(text[length-1]) return text[0:length-unpadding]原文地址
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