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FC
2007
Springer
125views Cryptology» more  FC 2007»
15 years 3 months ago
Scalable Authenticated Tree Based Group Key Exchange for Ad-Hoc Groups
Task-specific groups are often formed in an ad-hoc manner within big structures, like companies. Take the following typical scenario: A high rank manager decides that a task force...
Yvo Desmedt, Tanja Lange, Mike Burmester
87
Voted
TCC
2005
Springer
163views Cryptology» more  TCC 2005»
15 years 3 months ago
Adaptive Security of Symbolic Encryption
Abstract. We prove a computational soundness theorem for the symbolic analysis of cryptographic protocols which extends an analogous theorem of Abadi and Rogaway (J. of Cryptology ...
Daniele Micciancio, Saurabh Panjwani
ACMSE
2009
ACM
14 years 7 months ago
A secure unidirectional proxy re-encryption using identity and secret key exchange
Proxy re-encryption, abbreviated as PRE, is a cryptosystem which allows the proxy to re-encrypt a cirphertext without accessing the underlying message. The re-encryption protocol ...
Edna Milgo
PKC
2004
Springer
160views Cryptology» more  PKC 2004»
15 years 2 months ago
Constant Round Authenticated Group Key Agreement via Distributed Computation
Abstract. A group key agreement protocol allows a set of users, communicating over a public network, to agree on a private session key. Most of the schemes proposed so far require ...
Emmanuel Bresson, Dario Catalano
CRYPTO
2007
Springer
105views Cryptology» more  CRYPTO 2007»
15 years 3 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&...