The portable software collection
winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!
Enigweb is a firefox extension similar to the Thunderbird Enigmail extension. It will encrypt or sign textareas, and decrypt/verify OpenPGP data. Additionally extensions will be provided for major webmail providers.
OpenPortalGuard is a flexible, extensible, and massively scalable access control system for portals. It provides single-sign-on features for username/pw and smartcards as well as declarative access control.
PortableNotary permits you to verify pdf signature. Is OS independent and can be used from command line.