From Secure Trade Link:
SSX Free v2.0.1 allows individuals and corporations to extend their Secure Trade Link account services to their Linux based servers. Secure Trade Link provides secure document transfer and digital signature services for businesses. Create contracts online under collaborative workgroups, sign with digital signatures, and distribute the final results all in a secure environment. With Secure Trade Link services it's not only secure, it's also easy.
What's new in this version:
This Version is the first release on CNET Download.com
This is a very clever system. The biggest PRO I see right now is that I don't need to buy digital signatures by the bushel to secure my client connections. I love being able to hold a truly private conversation through a text messaging system without being showered with shopping advertisements!!!
While clever the system requires a learning curve, but that is to be expected.