NAME

       python-bcrypt - a module to implement OpenBSD's Blowfish password hash algorithm

       This manual page was written for the Debian distribution because the original program does
       not have a manual page.

       python-bcrypt is a Python module implementating  the  OpenBSD  Blowfish  password  hashing
       algorithm,  as described in "A Future-Adaptable Password Scheme" by Niels Provos and David
       Mazieres: http://www.openbsd.org/papers/bcrypt-paper.ps

       This system hashes passwords using a version of Bruce  Schneier's  Blowfish  block  cipher
       with  modifications  designed  to  raise  the  cost  of  off-line  password  cracking. The
       computation cost of the algorithm is parametrised, so it can be increased as computers get
       faster.

       A simple example demonstrates most of the features:

            import bcrypt

            # Hash a password for the first time
            hashed = bcrypt.hashpw(password, bcrypt.gensalt())

            # gensalt's log_rounds parameter determines the complexity
            # the work factor is 2**log_rounds, and the default is 12
            hashed = bcrypt.hashpw(password, bcrypt.gensalt(10))

            # Check that an unencrypted password matches one that has
            # previously been hashed
            if bcrypt.hashpw(plaintext, hashed) == hashed:
                 print "It matches"
            else:
                 print "It does not match"

AUTHOR

       python-bcrypt was written by Damien Miller <djm@mindrot.org>

       This  manual  page  was written by Kevin Coyner <kcoyner@debian.org> for the Debian system
       (but may be used by others).  Permission is granted to copy, distribute and/or modify this
       document  under  the  terms of the GNU General Public License, Version 2 any later version
       published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License  can  be  found  in
       /usr/share/common-licenses/GPL.

                                        December 22, 2007                        PYTHON-BCRYPT(1)