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PKC
2007
Springer

Traceable Ring Signature

10 years 6 months ago
Traceable Ring Signature
Abstract. The ring signature allows a signer to leak secrets anonymously, without the risk of identity escrow. At the same time, the ring signature provides great flexibility: No group manager, no special setup, and the dynamics of group choice. The ring signature is, however, vulnerable to malicious or irresponsible signers in some applications, because of its anonymity. In this paper, we propose a traceable ring signature scheme. A traceable ring scheme is a ring signature except that it can restrict “excessive” anonymity. The traceable ring signature has a tag that consists of a list of ring members and an issue that refers to, for instance, a social affair or an election. A ring member can make any signed but anonymous opinion regarding the issue, but only once (per tag). If the member submits another signed opinion, possibly pretending to be another person who supports the first opinion, the identity of the member is immediately revealed. If the member submits the same opin...
Eiichiro Fujisaki, Koutarou Suzuki
Added 09 Jun 2010
Updated 09 Jun 2010
Type Conference
Year 2007
Where PKC
Authors Eiichiro Fujisaki, Koutarou Suzuki
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