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PKC
2012
Springer
219views Cryptology» more  PKC 2012»
12 years 6 days ago
On the Security of Dynamic Group Signatures: Preventing Signature Hijacking
We identify a potential weakness in the standard security model for dynamic group signatures which appears to have been overlooked previously. More specifically, we highlight tha...
Yusuke Sakai, Jacob C. N. Schuldt, Keita Emura, Go...
ICICS
2004
Springer
14 years 3 months ago
On the Minimal Assumptions of Group Signature Schemes
Abstract. One of the central lines of cryptographic research is identifying the weakest assumptions required for the construction of secure primitives. In the context of group sign...
Michel Abdalla, Bogdan Warinschi
CANS
2009
Springer
276views Cryptology» more  CANS 2009»
13 years 7 months ago
Group Signatures with Verifier-Local Revocation and Backward Unlinkability in the Standard Model
Group signatures allow users to anonymously sign messages in the name of a group. Membership revocation has always been a critical issue in such systems. In 2004, Boneh and Shacham...
Benoît Libert, Damien Vergnaud
JOC
2011
104views more  JOC 2011»
13 years 20 days ago
Short Undeniable Signatures Based on Group Homomorphisms
This paper is devoted to the design and analysis of short undeniable signatures based on a random oracle. Exploiting their online property, we can achieve signatures with a fully s...
Jean Monnerat, Serge Vaudenay
ASIACRYPT
2003
Springer
14 years 3 months ago
Accumulating Composites and Improved Group Signing
Constructing practical and provably secure group signature schemes has been a very active research topic in recent years. A group signature can be viewed as a digital signature wit...
Gene Tsudik, Shouhuai Xu