Thank you so much! That was the problem :D!!!
Sal,
On Wednesday, February 22, 2017 10:32 AM, Alex Gaynor
<[email protected]> wrote:
You're generating a new salt on every invocation of encryptMAIN, which means
that a different key is used when you encrypt and decrypt.
On Wed, Feb 22, 2017 at 1:29 PM, Salvador Munguia via Cryptography-dev
<[email protected]> wrote:
Original Data:
gAAAAABYrP0tuwZsZ2D5v- r7O6NyGDpp3-TeiEwGRy- HCZg6eWWzfGpr0teeZ3iOeI7YQlfE-
xNr1cZLRUVQj2rgNcNS6rbJ
Encrypted Data:
gAAAAABYrdhsLhqsuFlsPn72AvzwXA T-_ wJDQIIOzl5oFyoPzSrmmDbURiPRdTD
fc_FqlOpTO0zGmedlyeY8xJp1_0D- 2dwOh8VUs- 0ncH604Zc38LKg7eZBJgIvSAByWMzJ
-HagvTIC2FzQZW7xSJbHgXaI- p6kvbOKrRcZiwLvwyZOCJ1ivyrj1kD
px06-jTLgZVD4VsWE7gHwQo2o4mj1_ HtMRZevoA==
Traceback (most recent call last):
File "tmp2.py", line 49, in <module>
dout = encryptMAIN(e_out,'')
File "tmp2.py", line 31, in encryptMAIN
return f.decrypt(data)
File "/usr/lib/python2.7/dist- packages/cryptography/fernet. py", line 110,
in decrypt
raise InvalidToken
cryptography.fernet. InvalidToken
This is the code I am using:
#!/usr/bin/python
import zlib,MySQLdb,os,sys,urllib,re
import os,hashlib,base64
from cryptography.fernet import Fernet
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat. primitives.kdf.pbkdf2 import PBKDF2HMAC
from Crypto.Cipher import AES
from pbkdf2 import PBKDF2
def encryptMAIN(data,fun):
password = b"this is the password!"
salt = os.urandom(16)
kdf = PBKDF2HMAC(
algorithm=hashes.SHA256(),
length=32,
salt=salt,
iterations=100000,
backend=default_backend()
)
key = base64.urlsafe_b64encode(kdf. derive(password))
f = Fernet(key)
if(fun == 'encrypt'):
return f.encrypt(b"%s" % (data))
else:
return f.decrypt(data)
def encryptDATA(data):
cipher = encryptMAIN(data,'encrypt')
return cipher
def decryptDATA(data):
decoded = encryptMAIN(data,'')
return decoded
string = "gAAAAABYrP0tuwZsZ2D5v- r7O6NyGDpp3-TeiEwGRy-
HCZg6eWWzfGpr0teeZ3iOeI7YQlfE- xNr1cZLRUVQj2rgNcNS6rbJ"
e_out = encryptMAIN(string,'encrypt')
print "Original Data: " + string
print "Encrypted Data: " + e_out
dout = encryptMAIN(e_out,'')
print "Decrypted Data: " + d_out
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