RhodeCode (formerly hg-app) is a Pylons framework based Mercurial repository browser/management with a built-in push/pull server and full text search. It works on http/https, has built-in permission/authentication (+ldap) features. It's similar to github or bitbucket, but it's supposed to run as a standalone hosted application and it focuses more on restricted access to repositories. It's powered by a VCS library that can handle many various version control systems.
Inkblot Auth is a class that can authenticate users by showing them inkblot images. It can associate a given user password with a list of inkblot images. The user chooses the password after seeing a list of inkblots and types in what those inkblots look like. The class can authenticate the user after showing him the same inkblots in a random order and asking the user to type in what those inkblots look like.