giis-ext4 (gET iT i sAY) is a file recovery tool for Ext4 filesystems. Once installed, current files and newly created files can be recovered. It allows users to recover all deleted files, recover files owned by a specific user, and recover files of a specific type, such as text or PNG. It uses ext2fs lib and sqlite.
pgpry is a Pthreads-based password recovery program for private OpenPGP keys. It reads private key data from stdin and performs a brute-force attack in order to recover the pass phrase. Numerous options for restricting the key space are offered, including regular expression filtering and prefix/suffix filters.
Rescatux is a GNU/Linux rescue CD that comes with Rescapp, a nice wizard that will guide you through your rescue tasks. It can restore Grub to the MBR update a Grub configuration, perform filesystem checks, fix a Windows MBR, and more. Features that can indirectly assist the rescue process include chat programs to let you reach human online help, a share log (automatic pastebin), and a share log that uses formatting appropriate for posting on a forum.