7 search results - page 2 / 2 » Sequential Aggregate Signatures and Multisignatures Without ... |
PKC
2007
Springer
13 years 11 months ago
2007
Springer
: This paper addresses the security of optimistic fair exchange in a multi-user setting. While the security of public key encryption and public key signature schemes in a single-us...
DRM
2003
Springer
13 years 10 months ago
2003
Springer
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...