Sciweavers

43 search results - page 5 / 9
» On the Impossibility of Private Key Cryptography with Weakly...
Sort
View
ISW
2007
Springer
14 years 1 months ago
Strongly-Secure Identity-Based Key Agreement and Anonymous Extension
Abstract. We study the provable security of identity-based (ID-based) key agreement protocols. Although several published protocols have been proven secure in the random oracle mod...
Sherman S. M. Chow, Kim-Kwang Raymond Choo
FOCS
2006
IEEE
14 years 1 months ago
Cryptography from Anonymity
There is a vast body of work on implementing anonymous communication. In this paper, we study the possibility of using anonymous communication as a building block, and show that o...
Yuval Ishai, Eyal Kushilevitz, Rafail Ostrovsky, A...
EUROCRYPT
2004
Springer
14 years 26 days ago
Positive Results and Techniques for Obfuscation
Informally, an obfuscator O is an efficient, probabilistic “compiler” that transforms a program P into a new program O(P) with the same functionality as P, but such that O(P)...
Ben Lynn, Manoj Prabhakaran, Amit Sahai
CRYPTO
2005
Springer
113views Cryptology» more  CRYPTO 2005»
14 years 1 months ago
Secure Communications over Insecure Channels Based on Short Authenticated Strings
Abstract. We propose a way to establish peer-to-peer authenticated communications over an insecure channel by using an extra channel which can authenticate very short strings, e.g....
Serge Vaudenay
CRYPTO
2004
Springer
120views Cryptology» more  CRYPTO 2004»
14 years 26 days ago
Pseudo-signatures, Broadcast, and Multi-party Computation from Correlated Randomness
Unconditionally secure multi-party computations in general, and broadcast in particular, are impossible if any third of the players can be actively corrupted and if no additional i...
Matthias Fitzi, Stefan Wolf, Jürg Wullschlege...