We analyze various stochastic processes for generating permutations almost uniformly at random in distributed and parallel systems. All our protocols are simple, elegant and are b...
We revisit narrow-pipe designs that are in practical use, and their security against preimage attacks. Our results are the best known preimage attacks on Tiger, MD4, and reduced SH...
Jian Guo, San Ling, Christian Rechberger, Huaxiong...
Transactions offer a powerful data-access method used in many databases today trough a specialized query API. User applications, however, use a different fileaccess API (POSIX) wh...
Richard P. Spillane, Sachin Gaikwad, Manjunath Chi...
Community Question Answering (CQA) has emerged as a popular forum for users to pose questions for other users to answer. Over the last few years, CQA portals such as Naver and Yah...
Web search engines are facing formidable performance challenges due to data sizes and query loads. The major engines have to process tens of thousands of queries per second over t...