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» An abuse-free fair contract signing protocol based on the RS...
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PODC
1998
ACM
13 years 8 months ago
Optimal Efficiency of Optimistic Contract Signing
A contract is a non-repudiable agreement on a given contract text, i.e., a contract can be used to prove agreement between its signatories to any verifier. A contract signing sche...
Birgit Pfitzmann, Matthias Schunter, Michael Waidn...
BIRTHDAY
2012
Springer
12 years 18 days ago
Deniable RSA Signature - The Raise and Fall of Ali Baba
The 40 thieves realize that the fortune in their cave is vanishing. A rumor says that Ali Baba has been granted access (in the form of a certificate) to the cave but they need evi...
Serge Vaudenay
DRM
2003
Springer
13 years 10 months ago
Breaking and repairing optimistic fair exchange from PODC 2003
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...
Yevgeniy Dodis, Leonid Reyzin