nasty

Nasty is a program that helps you to recover the passphrase of your PGP or GPG-key in case you forget or lost it. It is mostly a proof-of-concept: with a different implementation this program could be at least 100x faster.
It needs the gpgme library.

Download

Download link:

nasty-0.6.tgz

Changes

0.6 compiles and runs with gpgme 1.0.2
0.5 the passphrases to test can now be read from a file
0.4 fixed a bug that made nasty skip half of the keys
0.3 one can now also select the characterset to search through, fixed a couple of bugs
0.2 stores state to a file so that it can continue where it stopped last time
0.1 initial release

Links

This document describes several 'attacks' on pgp.

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