Omkant Pandey Rafael Pass Amit Sahai Wei-Lung Dustin Tseng Muthuramakrishnan Venkitasubramaniam Precise Concurrent Zero Knowledge. 397-414 2008 EUROCRYPT http://dx.doi.org/10.1007/978-3-540-78967-3_23 conf/eurocrypt/2008 db/conf/eurocrypt/eurocrypt2008.html#PandeyPSTV08