Sciweavers

FC
1998
Springer

Group Blind Digital Signatures: A Scalable Solution to Electronic Cash

13 years 7 months ago
Group Blind Digital Signatures: A Scalable Solution to Electronic Cash
In this paper we construct a practical group blind signature scheme. Our scheme combines the already existing notions of blind signatures and group signatures. It is an extension of Camenisch and Stadler's Group Signature Scheme [5] that adds the blindness property. We show how to use our group blind signatures to construct an electronic cash system in which multiple banks can securely distribute anonymous and untraceable e-cash. Moreover, the identity of the e-cash issuing bank is concealed, which is conceptually novel. The space, time, and communication complexities of the relevant parameters and operations are independent of the group size.
Anna Lysyanskaya, Zulfikar Ramzan
Related Content
Added 05 Aug 2010
Updated 05 Aug 2010
Type Conference
Year 1998
Where FC
Authors Anna Lysyanskaya, Zulfikar Ramzan
Comments (0)