Python Crypt functions
淘到一个Python Crypt functions:import binascii
from Crypto.Cipher import DES
def hex2byte(hexstring):
s = []
for ch in hexstring:
if ch.lower() in '01234567890abcdef':
s.append(ch)
else:
s.append('f')
return ''.join(s)
def xor(*args):
arg1 = args
for arg in args:
s = []
for i, ch in enumerate(arg):
s.append(chr(ord(arg1) ^ ord(ch)))
arg1 = ''.join(s)
return arg1
def get_main_key():
lmk = DES.new('password', DES.MODE_ECB)
return lmk
def encrypt(word, key=None):
if not key:
key = get_main_key()
w = (word + ' '*8)
word = w[:len(w)/8*8]
return binascii.b2a_hex(key.encrypt(word))
def decrypt(word, key=None):
if not key:
key = get_main_key()
return key.decrypt(binascii.a2b_hex(word)).strip()
def main():
a = "hello"
b = encrypt(a)
print b
print decrypt(b)
if __name__ == '__main__':
main()
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