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ICPADS
2005
IEEE
13 years 11 months ago
Separable and Anonymous Identity-Based Key Issuing
Abstract. In identity-based (ID-based) cryptosystems, a local registration authority (LRA) is responsible for authentication of users while the key generation center (KGC) is respo...
Ai Fen Sui, Sherman S. M. Chow, Lucas Chi Kwong Hu...
CCS
2009
ACM
14 years 6 months ago
Hidden credential retrieval from a reusable password
We revisit the venerable question of access credentials management, which concerns the techniques that we, humans with limited memory, must employ to safeguard our various access ...
Xavier Boyen
PKC
2009
Springer
210views Cryptology» more  PKC 2009»
14 years 6 months ago
Controlling Access to an Oblivious Database Using Stateful Anonymous Credentials
In this work, we consider the task of allowing a content provider to enforce complex access control policies on oblivious protocols conducted with anonymous users. As our primary ...
Scott E. Coull, Matthew Green, Susan Hohenberger
FC
2004
Springer
112views Cryptology» more  FC 2004»
13 years 11 months ago
The Vector-Ballot e-Voting Approach
Looking at current cryptographic-based e-voting protocols, one can distinguish three basic design paradigms (or approaches): (a) Mix-Networks based, (b) Homomorphic Encryption base...
Aggelos Kiayias, Moti Yung
JOC
2008
86views more  JOC 2008»
13 years 6 months ago
Lower Bounds and Impossibility Results for Concurrent Self Composition
In the setting of concurrent self composition, a single protocol is executed many times concurrently by a single set of parties. In this paper, we prove lower bounds and impossibi...
Yehuda Lindell