Concurrent Security
Speaker: Huijia (Rachel) Lin , EECS, MIT
Date: December 13 2011
Time: 4:15PM to 5:15PM
Location: 32-124
Host: Costis Daskalakis, CSAIL, MIT
Contact: Be Blackburn, 3-6098, imbe@mit.edu
Cryptographic protocols have been developed for a variety of tasks, including electronic auctions, electronic voting systems, privacy preserving data mining and more. The Internet allows for the concurrent execution of cryptographic protocols. Such concurrency severely challenges their security.
In this talk we introduce a novel technique for transforming any "stand-alone" secure protocol (i.e., one whose security is only guaranteed if executed in isolation) into one that is secure under concurrent executions. Contrary to previous results in the literature, this result is established without relying on additional trusted infrastructure or cryptographic hardness assumption
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