Scalable Access Control ForWeb Services

Controlling access to a large distributed service is a potentially error prone process that may negatively impact request throughput and usability. Our Authorization-Based Access Control (or ABAC) URL rewriter solves this problem by providing locally verifiable authorizations and delegation tracking compatible with common web tools. Our access control mechanism is reusable, distributed and meets the scaling requirements of large distributed services. We demonstrate the successful operation of our proposed mechanism on HP´s real-time network monitoring and measurement web service, S³.