python m2crypt模块aes加密

 

# -*- encoding: utf-8 -*-
from M2Crypto.EVP import Cipher
from M2Crypto import m2

iv = '\0' * 16   #任意设置
passKey = "1234567812345678"
text = "defabcdeabcdef1231231231231231adfasdfsdfasdfasdfadfasdfasdfasdfasdfasdf"

def encrypt(buf):
    #ecb 模式不受iv影响
    cipher = Cipher(alg='aes_128_ecb', key=passKey, iv=iv, op=1) # 1 is encrypt
    # padding 有时设置为1
    cipher.set_padding(padding=m2.no_padding)
    v = cipher.update(buf)
    v = v + cipher.final()
    del cipher  #需要删除

    out = ""
    for i in v:
        out += "%02X" % (ord(i))
    print out

    return v

def decrypt(buf):
    cipher = Cipher(alg='aes_128_ecb', key=passKey, iv=iv, op=0) # 0 is decrypt
    cipher.set_padding(padding=m2.no_padding)
    v = cipher.update(buf)
    v = v + cipher.final()
    del cipher  #需要删除
    print v
    return v

decrypt(encrypt(text))

 有时加解密其他语言生成的数据, 需要给加密的buf补零到16字节, 并将padding设置为False