PACISSO: P2P Access Control Incorporating Scalability and Self-Organization for Storage Systems
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Overview: This paper published by Sun Microsystems explains that a common challenge in fully distributed storage systems is the management of access rights to stored files. PACISSO is an efficient and scalable solution for distributed access control, applicable to systems consisting entirely of untrusted nodes. It gives both theoretical bounds on the cost of basic operations, and also include end-to-end measurements based on an implementation within a complete P2P object store named Celeste. All measurements revealed an efficient behavior which scales to very large numbers of users and objects.