TY - GEN
T1 - Practical and employable protocols for UC-secure circuit evaluation over ℤn
AU - Camenisch, Jan
AU - Enderlein, Robert R.
AU - Shoup, Victor
PY - 2013
Y1 - 2013
N2 - We present a set of new, efficient, universally composable two-party protocols for evaluating reactive arithmetic circuits modulo n, where n is a safe RSA modulus of unknown factorization. Our protocols are based on a homomorphic encryption scheme with message space ℤn, zero-knowledge proofs of existence, and a novel "mixed" trapdoor commitment scheme. Our protocols are proven secure against adaptive corruptions (assuming secure erasures) under standard assumptions in the CRS model (without random oracles). Our protocols appear to be the most efficient ones that satisfy these security requirements. In contrast to prior protocols, we provide facilities that allow for the use of our protocols as building blocks of higher-level protocols.
AB - We present a set of new, efficient, universally composable two-party protocols for evaluating reactive arithmetic circuits modulo n, where n is a safe RSA modulus of unknown factorization. Our protocols are based on a homomorphic encryption scheme with message space ℤn, zero-knowledge proofs of existence, and a novel "mixed" trapdoor commitment scheme. Our protocols are proven secure against adaptive corruptions (assuming secure erasures) under standard assumptions in the CRS model (without random oracles). Our protocols appear to be the most efficient ones that satisfy these security requirements. In contrast to prior protocols, we provide facilities that allow for the use of our protocols as building blocks of higher-level protocols.
KW - Practical Protocols
KW - Two-party computation
KW - UC-Security
UR - http://www.scopus.com/inward/record.url?scp=84884742058&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884742058&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-40203-6_2
DO - 10.1007/978-3-642-40203-6_2
M3 - Conference contribution
AN - SCOPUS:84884742058
SN - 9783642402029
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 19
EP - 37
BT - Computer Security, ESORICS 2013 - 18th European Symposium on Research in Computer Security, Proceedings
T2 - 18th European Symposium on Research in Computer Security, ESORICS 2013
Y2 - 9 September 2013 through 13 September 2013
ER -