Python PKCS#5 v2.0 PBKDF2 Module -------------------------------- This module implements the password-based key derivation function, PBKDF2, specified in `RSA PKCS#5 v2.0 <http://www.rsa.com/rsalabs/node.asp?id=2127>`_. Example PBKDF2 usage ==================== :: from pbkdf2 import PBKDF2 from Crypto.Cipher import AES import os salt = os.urandom(8) # 64-bit salt key = PBKDF2("This passphrase is a secret.", salt).read(32) # 256-bit key iv = os.urandom(16) # 128-bit IV cipher = AES.new(key, AES.MODE_CBC, iv) # ... Example crypt() usage ===================== :: from pbkdf2 import crypt pwhash = crypt("secret") alleged_pw = raw_input("Enter password: ") if pwhash == crypt(alleged_pw, pwhash): print "Password good" else: print "Invalid password" Example crypt() output ====================== :: >>> from pbkdf2 import crypt >>> crypt("secret") '$p5k2$$hi46RA73$aGBpfPOgOrgZLaHGweSQzJ5FLz4BsQVs' >>> crypt("secret", "XXXXXXXX") '$p5k2$$XXXXXXXX$L9mVVdq7upotdvtGvXTDTez3FIu3z0uG' >>> crypt("secret", "XXXXXXXX", 400) # 400 iterations (the default for crypt) '$p5k2$$XXXXXXXX$L9mVVdq7upotdvtGvXTDTez3FIu3z0uG' >>> crypt("spam", iterations=400) '$p5k2$$FRsH3HJB$SgRWDNmB2LukCy0OTal6LYLHZVgtOi7s' >>> crypt("spam", iterations=1000) # 1000 iterations '$p5k2$3e8$H0NX9mT/$wk/sE8vv6OMKuMaqazCJYDSUhWY9YB2J' Resources ========= Homepage https://www.dlitz.net/software/python-pbkdf2/ Source Code https://github.com/dlitz/python-pbkdf2/ PyPI package name `pbkdf2 <http://pypi.python.org/pypi/pbkdf2>`_ License ======= Copyright (C) 2007-2011 Dwayne C. Litzenberger <dlitz@dlitz.net> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.