python實現AES加密

pip install pycryptodomex

需要安裝pycryptodomex模塊

aes加密

from Cryptodome.Cipher import AES
from binascii import b2a_hex, a2b_hex
from config import secret_key


class AESEncrypts:
    def __init__(self):
        self.key = secret_key[0:16].encode("utf-8")
        self.BS = AES.block_size
        self.pad = lambda s: s + (self.BS - len(s) % self.BS) * chr(self.BS - len(s) % self.BS)
        self.un_pad = lambda s: s[0:-ord(s[-1])]

    def encrypt(self, clear_text):
        aes = AES.new(self.key, AES.MODE_CBC, self.key)
        return b2a_hex(aes.encrypt(self.pad(clear_text).encode('utf-8'))).decode("utf-8")

    def decrypt(self, cipher_text):
        aes = AES.new(self.key, AES.MODE_CBC, self.key)
        text = aes.decrypt(a2b_hex(cipher_text.encode("utf-8")))
        return self.un_pad(text.decode("utf-8"))

 

 

des3 加密

BS = DES3.block_size
keylen = BS * 3
pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS)
pad_key = lambda s: (keylen - len(s) % keylen) * chr(keylen - len(s) % keylen) + s
unpad = lambda s: s[0:-ord(s[-1])]


def Encrypt(key, data):
    cipher = DES3.new(key=pad_key(key), mode=DES3.MODE_ECB)
    return base64.b64encode(cipher.encrypt(pad(data).encode("utf-8")))


def Decrypt(key, data):
    cipher = DES3.new(key=key, mode=DES3.MODE_ECB)
    return unpad(cipher.decrypt(base64.b64decode(data)))