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» Compact Group Signatures Without Random Oracles
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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
IJNSEC
2011
128views more  IJNSEC 2011»
13 years 2 months ago
Certificateless Group Oriented Signature Secure Against Key Replacement Attack
Since Al-Riyami and Paterson presented certificateless cryptography, many certificateless schemes have been proposed for different purposes. In this paper, we present a certificate...
Chunbo Ma, Jun Ao
CISC
2006
Springer
131views Cryptology» more  CISC 2006»
13 years 11 months ago
Efficient Intrusion-Resilient Signatures Without Random Oracles
Intrusion-resilient signatures are key-evolving protocols that extend the concepts of forward-secure and key-insulated signatures. As in the latter schemes, time is divided into di...
Benoît Libert, Jean-Jacques Quisquater, Moti...
EUROCRYPT
2012
Springer
11 years 10 months ago
Lattice Signatures without Trapdoors
We provide an alternative method for constructing lattice-based digital signatures which does not use the “hash-and-sign” methodology of Gentry, Peikert, and Vaikuntanathan (ST...
Vadim Lyubashevsky
CANS
2009
Springer
276views Cryptology» more  CANS 2009»
13 years 5 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