This Apache module allows authentication against a MySQL database via a
cryptographically secure cookie.

Features:
  - Fake Basic Auth with cookies
  - Cookie only consists of random session data, no username or password
  - Can check expiry information stored in database against cookie
  - Can check if the remote IP is equal to the IP stored in database
  - Can be used for Single-Sign-On (SSO).

WWW: http://home.digithi.de/digithi/dev/mod_auth_cookie_mysql/