Constraining Pseudorandom Functions Privately
PKC, pp. 494-524, 2017.
In a constrained pseudorandom function PRF, the master secret key can be used to derive constrained keys, where each constrained keyï¾¿k is constrained with respect to some Boolean circuitï¾¿C. A constrained keyï¾¿k can be used to evaluate the PRF on all inputsï¾¿x for which $Cx = 1$. In almost all existing constrained PRF constructions...More
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