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CCS
2008
ACM
13 years 7 months ago
Computational soundness of observational equivalence
Many security properties are naturally expressed as indistinguishability between two versions of a protocol. In this paper, we show that computational proofs of indistinguishabili...
Hubert Comon-Lundh, Véronique Cortier
CCS
2009
ACM
14 years 7 days ago
CoSP: a general framework for computational soundness proofs
We describe CoSP, a general framework for conducting computational soundness proofs of symbolic models and for embedding these proofs into formal calculi. CoSP considers arbitrary...
Michael Backes, Dennis Hofheinz, Dominique Unruh
JCS
2010
121views more  JCS 2010»
13 years 3 months ago
Computational soundness of symbolic zero-knowledge proofs
raction of cryptographic operations by term algebras, called Dolev-Yao models, is essential in almost all tool-supported methods for proving security protocols. Recently significa...
Michael Backes, Dominique Unruh
CRYPTO
2007
Springer
105views Cryptology» more  CRYPTO 2007»
13 years 11 months ago
A Generalization of DDH with Applications to Protocol Analysis and Computational Soundness
In this paper we identify the (P, Q)-DDH assumption, as an extreme, powerful generalization of the Decisional Diffie-Hellman (DDH) assumption: virtually all previously proposed gen...
Emmanuel Bresson, Yassine Lakhnech, Laurent Mazar&...
CCS
2009
ACM
14 years 7 days ago
Computational soundness for key exchange protocols with symmetric encryption
Formal analysis of security protocols based on symbolic models has been very successful in finding flaws in published protocols and proving protocols secure, using automated too...
Ralf Küsters, Max Tuengerthal