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ESORICS
2006
Springer
15 years 10 months ago
Secure Key-Updating for Lazy Revocation
Abstract. We consider the problem of efficient key management and user revocation in cryptographic file systems that allow shared access to files. A performanceefficient solution t...
Michael Backes, Christian Cachin, Alina Oprea
ASIACRYPT
2004
Springer
16 years 7 days ago
Generic Homomorphic Undeniable Signatures
We introduce a new computational problem related to the interpolation of group homomorphisms which generalizes many famous cryptographic problems including discrete logarithm, Di...
Jean Monnerat, Serge Vaudenay
NDSS
1998
IEEE
15 years 11 months ago
Some Timestamping Protocol Failures
Protocol failures are presented for two timestamping schemes. These failures emphasize the importance and di culty of implementing a secure protocol even though there exist secure...
Mike Just
AIMS
2009
Springer
15 years 11 months ago
Evaluation of Sybil Attacks Protection Schemes in KAD
In this paper, we assess the protection mechanisms entered into recent clients to fight against the Sybil attack in KAD, a widely deployed Distributed Hash Table. We study three m...
Thibault Cholez, Isabelle Chrisment, Olivier Festo...
COMCOM
2008
104views more  COMCOM 2008»
15 years 6 months ago
A network-assisted mobile VPN for securing users data in UMTS
This paper proposes a network-assisted mobile Virtual Private Network (mVPN) security scheme that provides secure remote access to corporate resources over the Universal Mobile Te...
Christos Xenakis, Christoforos Ntantogian, Ioannis...