from Crypto.Cipher import AES
import base64
import os
key = "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16"
iv = "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16"
replace_plus = "BIN00101011BIN"
BLOCK_SIZE = 16
pad = lambda s: s + (BLOCK_SIZE - len(s) % BLOCK_SIZE) \
* chr(BLOCK_SIZE - len(s) % BLOCK_SIZE)
unpad = lambda s : s[0:-ord(s[-1])]
# encrypta con AES y codifica con base64
def EncodeAES(s):
c = AES.new(key, AES.MODE_CBC, iv)
s = pad(s)
s = c.encrypt(s)
s = base64.b64encode(s)
return s.replace("+", replace_plus)
def DecodeAES(enc):
c = AES.new(key, AES.MODE_CBC, iv)
enc = enc.replace(replace_plus, "+")
enc = base64.b64decode(enc)
enc = c.decrypt(enc)
return unpad(enc)
texto = "la casa azul"
# encriptar
encoded = EncodeAES(texto)
print 'Cadena encriptada:', encoded
# desencriptar
decoded = DecodeAES(encoded)
print 'Cadena desencriptada:', decoded
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