SOA Building Blocks WSS(WS-Security)

WS-Security describes enhancements to SOAP messaging to provide quality of protection through message integrity, message confidentiality, and single message authentication. These mechanisms can be used to accommodate a wide variety of security models and encryption technologies.

The protocol contains specifications on how integrity and confidentiality can be enforced on Web services messaging. The WSS protocol includes details on the use of SAML and Kerberos, and certificate formats such as X.509.

The WS-Security specification provides message-level security. The advantage of using WS-Security instead of Secure Sockets Layer (SSL) is that it can provide end-to-end message level security. This means that the messages are protected even if the message goes through multiple services, or intermediaries. Additionally, WS-Security is independent of the transport layer protocol. It can be used for any SOAP binding, not just for SOAP over HTTP.

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