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WISA
2005
Springer
14 years 1 months ago
Cryptanalysis of Some Group-Oriented Proxy Signature Schemes
Abstract. A proxy signature scheme allows an entity to delegate its signing power to another entity. Since the notion of proxy signatures was first introduced, many proxy signatur...
Je Hong Park, Bo Gyeong Kang, Sangwoo Park
EUROCRYPT
2006
Springer
13 years 11 months ago
Sequential Aggregate Signatures and Multisignatures Without Random Oracles
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
Steve Lu, Rafail Ostrovsky, Amit Sahai, Hovav Shac...
CCS
2006
ACM
13 years 11 months ago
Multi-signatures in the plain public-Key model and a general forking lemma
A multi-signature scheme enables a group of signers to produce a compact, joint signature on a common document, and has many potential uses. However, existing schemes impose key s...
Mihir Bellare, Gregory Neven
IJNSEC
2008
113views more  IJNSEC 2008»
13 years 7 months ago
Multi-Designated Verifiers Signatures Revisited
Multi-Designated Verifier Signatures (MDVS) are privacy-oriented signatures that can only be verified by a set of users specified by the signer. We propose two new generic constru...
Sherman S. M. Chow
MSN
2007
Springer
192views Sensor Networks» more  MSN 2007»
14 years 1 months ago
Secure Group Communication with Self-healing and Rekeying in Wireless Sensor Networks
We have developed a self-healing key distribution scheme for secure multicast group communications for wireless sensor network environment. We present a strategy for securely distr...
Firdous Kausar, Sajid Hussain, Jong Hyuk Park, Ash...