Sciweavers

50 search results - page 1 / 10
» Cryptanalysis of Two Group Signature Schemes
Sort
View
ISW
1999
Springer
13 years 9 months ago
Cryptanalysis of Two Group Signature Schemes
Abstract. Group signature schemes allow a group member to anonymously sign on group’s behalf. Moreover, in case of anonymity misuse, a group authority can recover the issuer of a...
Marc Joye, Seungjoo Kim, Narn-Yih Lee
INFORMATICALT
2000
93views more  INFORMATICALT 2000»
13 years 4 months ago
A Secure Nonrepudiable Threshold Proxy Signature Scheme with Known Signers
In the (t, n) proxy signature scheme, the signature, originally signed by a signer, can be signed by t or more proxy signers out of a proxy group of n members. Recently, an efficie...
Min-Shiang Hwang, Iuon-Chang Lin, Eric Jui-Lin Lu
WISA
2005
Springer
13 years 10 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
JCST
2007
98views more  JCST 2007»
13 years 4 months ago
Breaking and Repairing Trapdoor-Free Group Signature Schemes from Asiacrypt'2004
Group signature schemes allow a member of a group to sign messages anonymously on behalf of the group. In the case of later dispute, a designated group manager can revoke the anony...
Xinyi Huang, Willy Susilo, Yi Mu, Futai Zhang
PKC
2001
Springer
116views Cryptology» more  PKC 2001»
13 years 9 months ago
Cryptanalysis of a Digital Signature Scheme on ID-Based Key-Sharing Infrastructures
At ISW’99, Nishioka, Hanaoka and Imai proposed a digital signature scheme on ID-based key-sharing infrastructures. That signature scheme is claimed to be secure if the discrete l...
Hongjun Wu, Feng Bao, Robert H. Deng