The OSA vision:

"OSA distills the know-how of the security architecture community and provides readily usable patterns for your application. OSA shall be a free framework that is developed and owned by the community.

OSA is licensed in accordance with Creative Commons Share-alike. We believe that Open Source principles result in more secure systems, and want the computing architectures that we depend on for our daily lives to be as secure and reliable as possible


Read more: Open Security Architecture