Open Stack

Hi All,

I am pursuing MTech and my MTech project is "Role based access control using XACML and SAML over rest for cloud".
I am familiar with Technologies/platform

*         Role based access control

*         XACML

*         SAML

*         Linux environment

But not aware how all this work in cloud. My aim is to implement the role based access control for cloud ,my sole purpose is cloud security.
Herein I am attaching the architecture diagram, I initially came up with.
Any suggestion in the architect and how to implement role based access control in cloud ,will be helpful.

Thanks
Priya

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