000000183 001__ 183 000000183 005__ 20130522141957.0 000000183 037__ $$aLERSSE-POSTER-2009-003 000000183 041__ $$aeng 000000183 100__ $$aPranab Kini 000000183 245__ $$aSpeculative Authorizations 000000183 260__ $$c2009-05-18 000000183 300__ $$a1 000000183 520__ $$aIn a large-scale enterprise system, making authorization decisions is often computationally expensive due to the complexity of the policies involved and the large size of the resource and user populations. Given today’s trends, computing resources and network bandwidth will become more and more affordable, yet network latency will remain an obstacle. Pre-computing authorizations in advance and delivering them to the PEP cache will enable new tradeoffs between processor/network utilization and network delays. We report preliminary results of investigating what we labeled as “speculative authorizations.” 000000183 6531_ $$aAuthorizations 000000183 6531_ $$aDistributed Systems 000000183 6531_ $$aPrefetching 000000183 700__ $$aKonstantin (Kosta) Beznosov 000000183 8560_ $$fpranabk@ece.ubc.ca 000000183 8564_ $$uhttp://lersse-dl.ece.ubc.ca/record/183/files/183.pdf$$yTransfer from CDS 0.99.7 000000183 980__ $$aPOSTER