Passcheck - a sanity checker for passwords
(C)opyright 2003, Andrew McCall
Licensed under the GNU Lesser GPL
This is a drop in replacement or rewrite of the original
cracklib, and shares no code with the original(note: as they do the
same thing, there are a few similar algorithms). The intent of this
rewrite is to:
- provide an updated version of the somewhat difficult to find
- allow DIY'ers a ready to use cracklib
- to make an even more thourough and accurate cracklib
- provide a more liberally licensed free software(LPGL) versus the
problematic original Artistic license
Why use this instead of Cracklib 2.27?
This project is actively maintained, if you have problems with the
library, you can submit bug reports or patches and see them in the next
version. Unlike the original cracklib, this library works with your current
system's wordlist. (Although making a lowercase only wordlist is
recommended for English as well as a few other languages.) This library
has a much more liberal license, than the original. According to
gnu.org, the original fails to meet free software guidelines and is therefore
non-free(see the license list, under non-free licenses, the Artistic license.) This
version supports a much more exacting similarity test against the
dictionary, by using the Levenshtein distance algorithm.
Why not use this instead of cracklib 2.27?
This routines used in this library are a bit slower than those in the
original cracklib, however, testing on a few older machines(k6-2 level),
the delay was minimal.
This library is currently of BETA quality, and does not have a nice
automated configure; make; make install yet. To build:
- Unpackage the source code,
- Run "make"
- Run "make install"