… to exchange digital signatures over the Internet in a fair way, so … optimistic protocol for the
fair exchange of digital signatures. … In this extended abstract, we only deal with RSA, Schnorr …

… This paper is an extensively revised and expanded version of an extended abstract in
Proc. Eurocrypt’99, and of IBM Research Report RZ 2973, December 17, 1997. N. …

… PrivacyPreserving Optimistic Fair Exchange (P2ofe ), in which other than Alice and Bob, no
one else, including the arbitrator, can collect any evidence about an exchange between them …

… The purpose of this extended abstract is (1) to provide a deliberately informal, but … signing
and for certified e-mail. A strict optimistic protocol for the fair exchange of digital signatures was …

… efficient fair exchange … optimistic fair exchange of digital signatures. Recently, papers [2]
and [4] have presented protocols for optimistically exchange commonly used digital signature …

… In this work, we introduce a new notion called Privacy-Preserving Optimistic Fair Exchange
( … , can collect any evidence about an exchange between them even after the resolution of a …

… ambiguous optimistic fair exchange (AOFE) of digital signatures based on the new DCS
scheme. A partial AOFE signature … (extended abstract),” in Proc. Pairing 10, 2010, vol. 6487, pp. …

… [1] introduced the notion of optimistic fair exchange (hereinafter referred to as “OFE”). OFE
also makes use of a third … We review the security requirements of digital signatures as follows. …

… In x3, we show how to reduce the promise of a digital signature to the promise of a … our
optimistic protocol for the fair exchange of digital signatures. In x6, we discuss a more e cient …

… Moreover, the AdES-EPES allows the generation of electronic signatures according to a
signature policy, complying with the conditions imposed by the optimistic fair exchange protocol …