A randomized protocol for signing contracts
Communications of the ACM
A digital signature scheme secure against adaptive chosen-message attacks
SIAM Journal on Computing - Special issue on cryptography
Efficient verifiable encryption (and fair exchange) of digital signatures
CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
Accountable-subgroup multisignatures: extended abstract
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
On the Security of Joint Signature and Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Efficient Fair Exchange with Verifiable Confirmation of Signatures
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Off-Line Fair Payment Protocols Using Convertible Signatures
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
ASIACRYPT '00 Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Short Signatures from the Weil Pairing
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
Constructing fair-exchange protocols for E-commerce via distributed computation of RSA signatures
Proceedings of the twenty-second annual symposium on Principles of distributed computing
Breaking and repairing optimistic fair exchange from PODC 2003
Proceedings of the 3rd ACM workshop on Digital rights management
An abuse-free fair contract signing protocol based on the RSA signature
WWW '05 Proceedings of the 14th international conference on World Wide Web
Fair exchange protocol of signatures based on aggregate signatures
Computer Communications
Certificate-based fair exchange protocol of signatures from pairings
Computer Networks: The International Journal of Computer and Telecommunications Networking
Security of Verifiably Encrypted Signatures and a Construction without Random Oracles
Pairing '09 Proceedings of the 3rd International Conference Palo Alto on Pairing-Based Cryptography
A novel verifiably encrypted signature scheme without random oracle
ISPEC'07 Proceedings of the 3rd international conference on Information security practice and experience
Aggregate and verifiably encrypted signatures from bilinear maps
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
Stand-Alone and setup-free verifiably committed signatures
CT-RSA'06 Proceedings of the 2006 The Cryptographers' Track at the RSA conference on Topics in Cryptology
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Sequential aggregate signatures and multisignatures without random oracles
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
An intensive survey of fair non-repudiation protocols
Computer Communications
Double verifiably encrypted signature-based contract signing protocol
ICICA'10 Proceedings of the First international conference on Information computing and applications
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In this paper, we propose an optimistic fair exchange protocol of Schnorr signatures with a semi-trusted adjudicator. In this protocol, we enforce the adjudicator accountability in the protocol to relax excessive reliance on the trust of the adjudicator, so that the adjudicator only needs to be trusted by the signer. We present a security model and then show that the protocol is strong EUF-CMA secure under the standard Discrete Logarithm (DL) assumption in the random oracle model. Finally, we compare the performance of the fair exchange protocol of Schnorr signatures.