Allison B. Lewko, Mark Lewko, Brent Waters. How to leak on key updates. In Lance Fortnow, Salil P. Vadhan, editors, Proceedings of the 43rd ACM Symposium on Theory of Computing, STOC 2011, San Jose, CA, USA, 6-8 June 2011. pages 725-734, ACM, 2011. [doi]
Abstract is missing.