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» A Security Model for Anonymous Credential Systems
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IJSN
2006
96views more  IJSN 2006»
13 years 7 months ago
A new signature scheme without random oracles
In this paper, we propose a new signature scheme that is existentially unforgeable under a chosen message attack without random oracle. The security of our scheme depends on a new ...
Chik How Tan
SPW
2004
Springer
14 years 21 days ago
Privacy Is Linking Permission to Purpose
Abstract Fabio Massacci1 and Nicola Zannone1 Department of Information and Communication Technology University of Trento - Italy {massacci,zannone} at dit.unitn.it The last years h...
Fabio Massacci, Nicola Zannone
CCS
2007
ACM
14 years 1 months ago
Universally composable and forward-secure RFID authentication and authenticated key exchange
Recently, a universally composable framework for RFID authentication protocols providing availability, anonymity, and authenticity was proposed. In this paper we extend that frame...
Tri Van Le, Mike Burmester, Breno de Medeiros
CRYPTO
2006
Springer
224views Cryptology» more  CRYPTO 2006»
13 years 11 months ago
Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles)
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
Xavier Boyen, Brent Waters
SACMAT
2004
ACM
14 years 23 days ago
Using trust and risk in role-based access control policies
Emerging trust and risk management systems provide a framework for principals to determine whether they will exchange resources, without requiring a complete definition of their ...
Nathan Dimmock, András Belokosztolszki, Dav...