Message bus requirements

The requirements our message bus solution needs to satisfy

Requirement	Verified	Verification
We need persistence		Documentation
Topics as well as simple queues should be supported		Tested
Messages are exchanged asynchronously		Tested
Transformation of data between sender and consumer is not needed		Design decision
We need broad API support from common languages - especially Java and C	Java .NET	Tested ?
We need SSL support on the wire protocol		Documentation
Message payload should be signed		Design Decision
High flexibility		Documentation
Low complexity		Tested
The bus must be usable "out of the box", programming should not be necessary on the server side		Tested
Handling of timeouts would be nice
To avoid downtime and to ensure scalability, the messaging system should support distribution among multiple physically independent servers		Tested

Details (requirement explanation or verification details) can be written on the requirement subpages.