7 search results - page 2 / 2 » Colluding Attacks to a Payment Protocol and Two Signature Ex... |
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...
IEEEIAS
2009
IEEE
13 years 2 months ago
2009
IEEE
First we revisit three - BGLS, MBGLS and GZZ verifiably encrypted signature schemes [2, 3, 6]. We find that they are all not strong unforgeable.We remark that the notion of existen...