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It is possible to secure XML based JAX-RS requests (and responses) using XML Signature and Encryption. See the JAX-RS XML Security page for more information.

JAX-RS SAML

See the JAX-RS SAML page on creating SAML Assertions and adding them to a JAX-RS request, as well as how to validate them on the receiving side.

OAuth

Please check OAuth2.0 and OAuth1.0 pages for the information about the support for OAuth 2.0 and OAuth 1.0 in CXF.

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