We propose an efficient blind certification protocol with interesting properties. It falls in the Groth-Sahai framework for witness-indistinguishable proofs, thus extended to a ce...
Georg Fuchsbauer, David Pointcheval, Damien Vergna...
We construct an efficient delegatable anonymous credentials system. Users can anonymously and unlinkably obtain credentials from any authority, delegate their credentials to other ...
Mira Belenkiy, Jan Camenisch, Melissa Chase, Marku...
sion of an extended abstract published in Proceedings of Eurocrypt 2012, Springer-Verlag, 2012. Available from the IACR Cryptology ePrint Archive as Report 2012/012. Malleability ...
Melissa Chase, Markulf Kohlweiss, Anna Lysyanskaya...
xtended abstract which appears in the 2011 International Conference on Theory and Practice in Public Key Cryptography PKC 2011 (6–9 march 2011, Taormina, Italy) D. Catalano, N. F...
Olivier Blazy, Georg Fuchsbauer, David Pointcheval...
We revisit the composability of different forms of zero-knowledge proofs when the honest prover strategy is restricted to be polynomial time (given an appropriate auxiliary input)...