What are the basic security requirement of a typical SSO solution?
1. It should be written either in java,.net PHP or cobol since no other language/platform are secure enough to provide a sso solution
2. The "SSO Token" used for SSO should be secured against theft, spoofing or forgery
3. it should eliminate calculation of user password to multiple applications/systems to gain access to them
4. b&C
5. All of the above
