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From Maciej Miklas <>
Subject Cassandra as Database for Role Based Access Control System
Date Tue, 20 Mar 2012 06:47:29 GMT
Hi *,

I would like to know your opinion about using Cassandra to implement a
RBAC-like authentication & authorization model. We have simplified the
central relationship of the general model ( to:

user ---n:m--- role ---n:m--- resource

user(s) and resource(s) are indexed with externally visible identifiers.
These identifiers need to be "re-ownable" (think: mail aliases), too.

The main reason to consider Cassandra is the availability, scalability and
(global) geo-redundancy. This is hard to achieve with a RBDMS.

On the other side, RBAC has many m:n relations. While some inconsistencies
may be acceptable, resource ownership (i.e. role=owner) must never ever be
mixed up.

What do you think? Is such relational model an antipattern for Cassandra
usage? Do you know similar solutions based on Cassandra?



ps. I've posted this question also on stackoverflow, but I would like to
also get feedback from Cassandra community.

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