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Title:
Functional Encryption for Randomized Functionalities
Authors: Vipul Goyal, Abhishek Jain, Venkata Koppula, Amit Sahai
Abstract:In this work, we present the first definitions and constructions for functional encryption supporting randomized functionalities. The setting of randomized functionalities require us to revisit functional encryption definitions by, for the first time, explicitly adding security requirements for dishonest encryptors, to ensure that they cannot improperly tamper with the randomness that will be used for computing outputs. Our constructions are built using indistinguishability obfuscation.
ePrint: https://eprint.iacr.org/2013/729
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