pip install Crypto
pip install binascii

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#@author: rui.xu
#這里使用pycrypto?庫
#按照方法:easy_install pycrypto?
from Crypto.Cipher import AES
from binascii import b2a_hex, a2b_hex
class prpcrypt():
  def __init__(self,key):
    self.key = key
    self.mode = AES.MODE_CBC
  #加密函數(shù)，如果text不足16位就用空格補(bǔ)足為16位，
  #如果大于16當(dāng)時不是16的倍數(shù)，那就補(bǔ)足為16的倍數(shù)。
  def encrypt(self,text):
    cryptor = AES.new(self.key,self.mode,b'0000000000000000')
    #這里密鑰key 長度必須為16（AES-128）,
    #24（AES-192）,或者32 （AES-256）Bytes 長度
    #目前AES-128 足夠目前使用
    length = 16
    count = len(text)
    if count < length:
      add = (length-count)
      #\0 backspace
      text = text + ('\0' * add)
    elif count > length:
      add = (length-(count % length))
      text = text + ('\0' * add)
    self.ciphertext = cryptor.encrypt(text)
    #因為AES加密時候得到的字符串不一定是ascii字符集的，輸出到終端或者保存時候可能存在問題
    #所以這里統(tǒng)一把加密后的字符串轉(zhuǎn)化為16進(jìn)制字符串
    return b2a_hex(self.ciphertext)
  #解密后，去掉補(bǔ)足的空格用strip() 去掉
  def decrypt(self,text):
    cryptor = AES.new(self.key,self.mode,b'0000000000000000')
    plain_text = cryptor.decrypt(a2b_hex(text))
    return plain_text.rstrip('\0')
if __name__ == '__main__':
  pc = prpcrypt('keyskeyskeyskeys') #初始化密鑰
  import sys
  e = pc.encrypt(sys.argv[1]) #加密
  d = pc.decrypt(e) #解密
  print "加密:",e
  print "解密:",d

cryptor = AES.new(self.key,self.mode,b'0000000000000000')