Ви не можете вибрати більше 25 тем
Теми мають розпочинатися з літери або цифри, можуть містити дефіси (-) і не повинні перевищувати 35 символів.
57 рядки
1.9 KiB
57 рядки
1.9 KiB
5 роки тому
|
#!/usr/bin/env python
|
||
|
|
# -*- coding:utf-8 -*-
|
||
|
|
#@author: rui.xu
|
||
|
|
#这里使用pycrypto库
|
||
|
|
#按照方法:easy_install pycrypto
|
||
|
|
|
||
|
|
from Crypto.Cipher import AES
|
||
|
|
from binascii import b2a_hex, a2b_hex
|
||
|
|
from django.conf import settings
|
||
|
|
|
||
|
|
|
||
|
|
class prpcrypt():
|
||
|
|
def __init__(self,key):
|
||
|
|
self.key = key
|
||
|
|
self.mode = AES.MODE_CBC
|
||
|
|
|
||
|
|
#加密函数，如果text不足16位就用空格补足为16位，
|
||
|
|
#如果大于16当时不是16的倍数，那就补足为16的倍数。
|
||
|
|
def encrypt(self,text):
|
||
|
|
cryptor = AES.new(self.key,self.mode, b'0000000000000000')
|
||
|
|
#这里密钥key 长度必须为16（AES-128）,
|
||
|
|
#24（AES-192）,或者32 （AES-256）Bytes 长度
|
||
|
|
#目前AES-128 足够目前使用
|
||
|
|
# nonce = cryptor.nonce
|
||
|
|
length = 32
|
||
|
|
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)
|
||
|
|
print(text)
|
||
|
|
self.ciphertext = cryptor.encrypt(text.encode("utf8"))
|
||
|
|
#因为AES加密时候得到的字符串不一定是ascii字符集的，输出到终端或者保存时候可能存在问题
|
||
|
|
#所以这里统一把加密后的字符串转化为16进制字符串
|
||
|
|
return b2a_hex(self.ciphertext)
|
||
|
|
|
||
|
|
#解密后，去掉补足的空格用strip() 去掉
|
||
|
|
def decrypt(self,text):
|
||
|
|
cryptor = AES.new(self.key,self.mode,b'0000000000000000')
|
||
|
|
plain_text = cryptor.decrypt(a2b_hex(text)).decode("utf8")
|
||
|
|
return plain_text.rstrip('\0')
|
||
|
|
|
||
|
|
pc = prpcrypt(settings.CRYPT_KEY.encode('utf8')) #初始化密钥
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
# for test
|
||
|
|
print(settings.CRYPT_KEY)
|
||
|
|
pc = prpcrypt(settings.CRYPT_KEY.encode('utf8')) #初始化密钥
|
||
|
|
import sys
|
||
|
|
str = sys.argv[1]
|
||
|
|
e = pc.encrypt(str) #加密
|
||
|
|
print("加密:",e)
|
||
|
|
d = pc.decrypt(e) #解密
|
||
|
|
print("解密:",d)
|