Cryptology ePrint Archive: Report 2014/507

How to Generate and use Universal Parameters

Dakshita Khurana and Amit Sahai and Brent Waters

Abstract: We introduce the notion of \emph{universal parameters} as a method for generating the trusted parameters for many schemes from just a single trusted setup. In such a scheme a trusted setup process will produce universal parameters $U$. These parameters can then be combined with the description, $d(\cdot)$ of any particular cryptographic setup algorithm to produce parameters $p_d$ that can be used by the cryptographic system associated with $d$. We give a solution in the random oracle model based on indistinguishability obfuscation.

Category / Keywords: cryptographic protocols / obfuscation

Date: received 27 Jun 2014, last revised 27 Jun 2014

Contact author: amitsahai at gmail com

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Version: 20140628:131833 (All versions of this report)

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