Security Features
• Facilitates interoperability through WS-* standards
• WS-Trust. Uses the secure messaging mechanisms of WS-Security
• WS-SecureConversation
• WS-Federation
• WS-SecurityPolicy
• Confidentiality – keeping messages private
• Authentication – verifying claimed identity
• Uses transport-level protocol (like HTTPS); only point-to-point secure
• Uses WS-Security; less efficient but secure from end to end
• SOAP Message Security (OASIS)
Reliable Messaging
• Provides for SOAP messages what TCP provides for IP packets
• Ensures messages are exactly once
• Handles lost messages and duplicates
• End-to-end reliability (vs. transport reliability of TCP)
Queues
• Leverages Microsoft Message Queuing (MSMQ) as a transport
• Enables loosely coupled applications and disconnected operations
Transactions
• Takes advantage of System.Transactions in .NET 2.0
• Supports WS-AtomicTransaction
Compatibility
COM+
• Extend COM+ components as Web services
• Service derived from COM+ interface
COM
• Moniker support (GetObject) for usage of WCF services from COM-based applications
