python简单实现AES加密和解密

import base64
from Crypto.Cipher import AES
# 密钥（key）, 密斯偏移量（iv） CBC模式加密
 
def AES_Encrypt(key, data):
  vi = '0102030405060708'
  pad = lambda s: s + (16 - len(s)%16) * chr(16 - len(s)%16)
  data = pad(data)
  # 字符串补位
  cipher = AES.new(key.encode('utf8'), AES.MODE_CBC, vi.encode('utf8'))
  encryptedbytes = cipher.encrypt(data.encode('utf8'))
  # 加密后得到的是bytes类型的数据
  encodestrs = base64.b64encode(encryptedbytes)
  # 使用Base64进行编码,返回byte字符串
  enctext = encodestrs.decode('utf8')
  # 对byte字符串按utf-8进行解码
  return enctext
 
 
def AES_Decrypt(key, data):
  vi = '0102030405060708'
  data = data.encode('utf8')
  encodebytes = base64.decodebytes(data)
  # 将加密数据转换位bytes类型数据
  cipher = AES.new(key.encode('utf8'), AES.MODE_CBC, vi.encode('utf8'))
  text_decrypted = cipher.decrypt(encodebytes)
  unpad = lambda s: s[0:-s[-1]]
  text_decrypted = unpad(text_decrypted)
  # 去补位
  text_decrypted = text_decrypted.decode('utf8')
  return text_decrypted
 
 
key = '0CoJUm6Qyw8W8jud'
data = 'sdadsdsdsfd'
AES_Encrypt(key, data)
enctext = AES_Encrypt(key, data)
print(enctext)
text_decrypted = AES_Decrypt(key, enctext)
print(text_decrypted) 

hBXLrMkpkBpDFsf9xSRGQQ==
sdadsdsdsfd