A group signature scheme with strong separability

13 years 6 months ago
A group signature scheme with strong separability
Group signatures, introduced by Chaum and van Heijst, allow members of a group to sign messages anonymously on behalf of the group. Only a designated group manager is able to identify the group member who issued a given signature. Many applications of group signatures, for example, electronic market, require that the group manager can be split into a membership manager and a revocation manager. The former is responsible for adding new members to the group. The latter is responsible for opening signatures. Previously proposed group signatures schemes can only achieve a weak form of separability. That is, the revocation manager and the membership manager must work in concert to reveal the identity of the signer. In this paper, we propose a group signature scheme with strong separability in which the revocation manager can work without the involvement of the membership manager.
Shundong Xia, Jinyuan You
Added 22 Dec 2010
Updated 22 Dec 2010
Type Journal
Year 2002
Where JSS
Authors Shundong Xia, Jinyuan You
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