We introduce the novel notion of Verifiable Encryption of Chameleon Signatures (VECS), and then use it to design a three-round abuse-free optimistic contract signing protocol. Key...
Abstract. A contract signing protocol lets two parties exchange digital signatures on a pre-agreed text. Optimistic contract signing protocols enable the signers to do so without i...
Rohit Chadha, John C. Mitchell, Andre Scedrov, Vit...
Reliable and atomic transactions are a key to successful eBusiness interactions. Reliable messaging subsystems, such as IBM’s MQ Series, or broker-based techniques have been tra...
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...