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ISW
2005
Springer
13 years 11 months ago
Universally Composable Time-Stamping Schemes with Audit
Abstract. We present a universally composable time-stamping scheme based on universal one-way hash functions. The model we use contains an ideal auditing functionality (implementab...
Ahto Buldas, Peeter Laud, Märt Saarepera, Jan...
EUROCRYPT
2005
Springer
13 years 11 months ago
Universally Composable Password-Based Key Exchange
Abstract. We propose and realize a definition of security for passwordbased key exchange within the framework of universally composable (UC) security, thus providing security guar...
Ran Canetti, Shai Halevi, Jonathan Katz, Yehuda Li...
CRYPTO
2007
Springer
162views Cryptology» more  CRYPTO 2007»
13 years 11 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 6 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...
ASIACRYPT
2009
Springer
14 years 7 days ago
A Framework for Universally Composable Non-committing Blind Signatures
A universally composable (UC) blind signature functionality requres users to commit to the message to be blindly signed. It is thereby impossible to realize in the plain model. Th...
Masayuki Abe, Miyako Ohkubo