Groth-Sahai proofs revisited

@inproceedings{Ghadafi2009GrothSahaiPR,
  title={Groth-Sahai proofs revisited},
  author={Essam Ghadafi and Nigel P. Smart and Bogdan Warinschi},
  booktitle={IACR Cryptology ePrint Archive},
  year={2009}
}
Since their introduction in 2008, the non-interactive zeroknowledge (NIZK) and non-interactive witness indistinguishable (NIWI) proofs designed by Groth and Sahai have been used in numerous applications. In this paper, we offer two contributions to the study of these proof systems. First, we identify and correct some errors, present in the oringal online manuscript, that occur in two of the three instantiations of the Groth-Sahai NIWI proofs for which the equation checked by the verifier is not… CONTINUE READING
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