Some tools I (Romain Raboin) wrote during my intership at France Telecom R&D:
myjohn Corrections on Simon Maréchal's patch for John The Ripper.
passwd_cracker Distributed (in Ruby) password cracker using myjohn. This tool use a client-server architecture to distribute the hash calculation.
HTTP Digest Access Authentication patch. A patch for john-1.7.3 that allow you to brute force HTTP Digest Access Authentication when you got a network capture of an authentication.
MD5 cracker for CELL architecture MD5 brute forcer implementation for CELL architecture. (155 Mpwds/s) (coming soon !)
MD5 cracker for CELL architecture MD5 brute forcer implementation for CELL architecture. (120 Mpwds/s) (PoC)
bfssh: a multi-threaded tool written in C to test for weak keys in authorized_keys files on a remote machine. It will test for all possible keys for a given architecture in less than five minutes on a decent network. You'll need a vulnerable libssl/libcrypto and libssh to compile/use it.