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ICALP
2005
Springer
15 years 3 months ago
Hierarchical Group Signatures
We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the si...
Mårten Trolin, Douglas Wikström
CRYPTO
1998
Springer
106views Cryptology» more  CRYPTO 1998»
15 years 2 months ago
New Efficient and Secure Protocols for Verifiable Signature Sharing and Other Applications
Verifiable Signature Sharing (VS ) enables the recipient of a digital signature, who is not necessarily the original signer, to share such signature among n proxies so that a subse...
Dario Catalano, Rosario Gennaro
FC
2006
Springer
139views Cryptology» more  FC 2006»
15 years 1 months ago
Defeating Malicious Servers in a Blind Signatures Based Voting System
In this paper, we present two failures in the blind signatures based voting system Votopia [2] which has been tested during the last World Soccer Cup. We then propose a fix which r...
Sébastien Canard, Matthieu Gaud, Jacques Tr...
ICNP
1998
IEEE
15 years 2 months ago
Digital Signatures for Flows and Multicasts
We present chaining techniques for signing/verifying multiple packets using a single signing/verification operation. We then present flow signing and verification procedures based...
Chung Kei Wong, Simon S. Lam
ACISP
2005
Springer
15 years 3 months ago
Group Signature Where Group Manager, Members and Open Authority Are Identity-Based
We present the first group signature scheme with provable security and signature size O(λ) bits where the group manager, the group members, and the Open Authority (OA) are all id...
Victor K. Wei, Tsz Hon Yuen, Fangguo Zhang