John The Ripper
A patch to John The Ripper version john-1.7.2 that prevents cracked passwords from being displayed or logged.
You can find a copy of the orginal tgz here, or at http://www.openwall.com/john/.
The following unixtastic patches are available:
john-forget-cracked-passwords-1.7.2.patch - A patch that ensures cracked passwords are not logged or displayed.
You can find a copy of the patched 1.7.2 source tarball here.
Instructions.
unpack the john the ripper source and apply with:
patch -p0
Then compile as normal:
cd john-1.7.2/src
make
[ choose your system from the list ]
make clean [system]
Easy Instructions - Prepatched Source.
Unpack the prepatched source and compile as normal:
tar -xzvf john-unixtastic-patched-1.7.2.tar.gz
cd john-1.7.2/src
make
[ choose your system from the list ]
make clean [system]
Paranoid Instructions. ( recommended )
Download and read the patch, it's a one line change. If you need to know what passwords are crackable but not the cracked passwords you could write your own patch instead. Download my prepatched source and diff it with the openwall source.
After you are happy that this isn't trojaned follow the Easy Instructions above.
All software and patches are licenced under GPL version 2.