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FOCS
2003
IEEE
13 years 9 months ago
General Composition and Universal Composability in Secure Multi-Party Computation
Concurrent general composition relates to a setting where a secure protocol is run in a network concurrently with other, arbitrary protocols. Clearly, security in such a setting i...
Yehuda Lindell
CRYPTO
2010
Springer
167views Cryptology» more  CRYPTO 2010»
13 years 5 months ago
Multiparty Computation for Dishonest Majority: From Passive to Active Security at Low Cost
Multiparty computation protocols have been known for more than twenty years now, but due to their lack of efficiency their use is still limited in real-world applications: the goal...
Ivan Damgård, Claudio Orlandi
CRYPTO
2007
Springer
162views Cryptology» more  CRYPTO 2007»
13 years 10 months ago
Universally-Composable Two-Party Computation in Two Rounds
Round complexity is a central measure of efficiency, and characterizing the round complexity of various cryptographic tasks is of both theoretical and practical importance. We show...
Omer Horvitz, Jonathan Katz
STOC
2002
ACM
152views Algorithms» more  STOC 2002»
14 years 4 months ago
Universally composable two-party and multi-party secure computation
d Abstract) Ran Canetti Yehuda Lindell Rafail Ostrovsky Amit Sahai? We show how to securely realize any multi-party functionality in a universally composable way, regardless of th...
Ran Canetti, Yehuda Lindell, Rafail Ostrovsky, Ami...
STOC
2004
ACM
117views Algorithms» more  STOC 2004»
14 years 4 months ago
New notions of security: achieving universal composability without trusted setup
We propose a modification to the framework of Universally Composable (UC) security [3]. Our new notion, involves comparing the protocol executions with an ideal execution involvin...
Manoj Prabhakaran, Amit Sahai