drydenmaker

Places user information in the global session for use in other applications on the same domain. Currently used by a Crossley Framework (http://bit.ly/18hJsP) Auth module. When used, a unauthenticated user can request an application page outside WP that requires authentication. The module then forwards teh person to the WP Login page, which once authentication is finished, forwards the user back to the initial requested page. Then the application can peer into who the user is as far as WP is concerned and decide what to do from there.

WP Passport

Places user information in the global session for use in other applications on the same domain.  Currently used by a Crossley Framework (http://bit.

Janis Elsts

Normally when you login to your blog WordPress will create a session cookie that is used to authenticate you. If someone was to steal the cookie they would be able to use it to get full access to your blog without having to know your password. This plugin prevents that from happening – it makes the cookie specific to your IP address, so it won’t be usable from a different computer.
Use this plugin if you have a static IP. If you have a dynamic IP address and it changes often you will get logged out frequently.
A bit more info can be obtained from the <a href="http://w-shadow.com/blog/2008/07/12/safer-cookies-plugin-for-wordpress/" title="Safer Cookies homepage" rel="nofollow ugc">Safer Cookies homepage</a>

Safer Cookies

Ties the WP session cookie to your IP address so that it can't be used to get access to you blog from another computer.

WP Passport vs Safer Cookies