frag_find is a hash-based carving tool. The current version didn't compile under current versions of Linux and was tied up in the NPS Bloom Filter package. I've taken out a lot of the experimental code that was in the Bloom Filter package and made a clean release of just frag_find that compiles on Fedora, Ubuntu and MacOS.
You can download it from http://digitalcorpora.org/downloads/frag_find
It's also on github: https://github.com/simsong/frag_find
More details at: http://www.forensicswiki.org/wiki/Frag_find
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