Creddump is a Python applicaiton designed to extract various credentials and secrets from Windows registry hives.
It currently extracts:
LM and NT hashes (SYSKEY protected)
Cached domain passwords
It essentially performs all the functions that bkhive/samdump2, cachedump, and lsadump2 do, but in a platform-independent way.
It is also the first tool that does all of these things in an offline way (actually, Cain & Abel does, but is not open source and is only available on Windows).