A randomized protocol for signing contracts
Communications of the ACM
How to prove yourself: practical solutions to identification and signature problems
Proceedings on Advances in cryptology---CRYPTO '86
A key distribution system equivalent to factoring
Journal of Cryptology
A “paradoxical” identity-based signature scheme resulting from zero-knowledge
CRYPTO '88 Proceedings on Advances in cryptology
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Optimistic protocols for fair exchange
Proceedings of the 4th ACM conference on Computer and communications security
A new public key cryptosystem based on higher residues
CCS '98 Proceedings of the 5th ACM conference on Computer and communications security
Signature schemes based on the strong RSA assumption
CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Wallet Databases with Observers
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Statistical Zero Knowledge Protocols to Prove Modular Polynomial Relations
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
The Decision Diffie-Hellman Problem
ANTS-III Proceedings of the Third International Symposium on Algorithmic Number Theory
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Proving in zero-knowledge that a number is the product of two safe primes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Secure hash-and-sign signatures without the random oracle
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Proceedings of the 7th ACM conference on Computer and communications security
Reducing the round complexity of a sealed-bid auction protocol with an off-line TTP
Proceedings of the 7th ACM conference on Computer and communications security
Some guidelines for non-repudiation protocols
ACM SIGCOMM Computer Communication Review
An efficient protocol for anonymous and fair document exchange
Computer Networks: The International Journal of Computer and Telecommunications Networking
Stateless-Recipient Certified E-Mail System Based on Verifiable Encryption
CT-RSA '02 Proceedings of the The Cryptographer's Track at the RSA Conference on Topics in Cryptology
Playing Lottery on the Internet
ICICS '01 Proceedings of the Third International Conference on Information and Communications Security
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
ASIACRYPT '00 Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Provably Secure Fair Blind Signatures with Tight Revocation
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Simple and fast optimistic protocols for fair electronic exchange
Proceedings of the twenty-second annual symposium on Principles of distributed computing
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
Fair certified e-mail delivery
Proceedings of the 2004 ACM symposium on Applied computing
Verifiable encryption of digital signatures and applications
ACM Transactions on Information and System Security (TISSEC)
A unified approach to a fair document exchange system
Journal of Systems and Software
Anonymous traceable disclosure scheme using pairing over elliptic curve
InfoSecu '04 Proceedings of the 3rd international conference on Information security
Autonomous mobile agent based fair exchange
Computer Networks: The International Journal of Computer and Telecommunications Networking
Certified E-Mail Delivery with DSA Receipts
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 17 - Volume 18
An abuse-free fair contract signing protocol based on the RSA signature
WWW '05 Proceedings of the 14th international conference on World Wide Web
Practical and efficient fair document exchange over networks
Journal of Network and Computer Applications
Journal of Computer Security - Special issue on security track at ACM symposium on applied computing 2004
Orchestrating fair exchanges between mutually distrustful web services
Proceedings of the 3rd ACM workshop on Secure web services
Generic non-repudiation protocols supporting transparent off-line TTP
Journal of Computer Security - On IWAP'05
Providing Certified Mail Services on the Internet
IEEE Security and Privacy
A secure protocol for misbehavior-penalization-based fair digital signature exchange
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Efficient and secure protocol in fair document exchange
Computer Standards & Interfaces
An optimistic fair exchange protocol and its security in the universal composability framework
International Journal of Applied Cryptography
A verifiably encrypted signature scheme with strong unforgeability
Proceedings of the 2nd international conference on Scalable information systems
Fair exchange protocol of signatures based on aggregate signatures
Computer Communications
Certified E-Mail Protocol in the ID-Based Setting
ACNS '07 Proceedings of the 5th international conference on Applied Cryptography and Network Security
Generic Fair Non-Repudiation Protocols with Transparent Off-line TTP
Proceedings of the 2005 conference on Applied Public Key Infrastructure: 4th International Workshop: IWAP 2005
Proceedings of the 28th ACM symposium on Principles of distributed computing
An efficient secure proxy verifiably encrypted signature scheme
Journal of Network and Computer Applications
Some common attacks against certified email protocols and the countermeasures
Computer Communications
Autonomous mobile agent based fair exchange
Computer Networks: The International Journal of Computer and Telecommunications Networking
Analysis and improvement of fair certified e-mail delivery protocol
Computer Standards & Interfaces
Signet: low-cost auditable transactions using SIMs and mobile phones
ACM SIGOPS Operating Systems Review
A novel verifiably encrypted signature scheme without random oracle
ISPEC'07 Proceedings of the 3rd international conference on Information security practice and experience
On the generic and efficient constructions of secure designated confirmer signatures
PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
On fairness in exchange protocols
ICISC'02 Proceedings of the 5th international conference on Information security and cryptology
An abuse-free fair contract-signing protocol based on the RSA signature
IEEE Transactions on Information Forensics and Security
A practical electronic payment scheme
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Fair exchange protocol of Schnorr signatures with semi-trusted adjudicator
Computers and Electrical Engineering
Optimistic fair exchange with multiple arbiters
ESORICS'10 Proceedings of the 15th European conference on Research in computer security
Contract signature in e-commerce
Computers and Electrical Engineering
Confidential deniable authentication using promised signcryption
Journal of Systems and Software
Efficient CDH-based verifiably encrypted signatures with optimal bandwidth in the standard model
ADHOC-NOW'11 Proceedings of the 10th international conference on Ad-hoc, mobile, and wireless networks
Concurrent signatures with fully negotiable binding control
ProvSec'11 Proceedings of the 5th international conference on Provable security
Cryptanalysis of two signature schemes based on bilinear pairings in CISC '05
Inscrypt'06 Proceedings of the Second SKLOIS conference on Information Security and Cryptology
A topological condition for solving fair exchange in byzantine environments
ICICS'06 Proceedings of the 8th international conference on Information and Communications Security
The fairness of perfect concurrent signatures
ICICS'06 Proceedings of the 8th international conference on Information and Communications Security
Usable optimistic fair exchange
Computer Networks: The International Journal of Computer and Telecommunications Networking
CT-RSA'06 Proceedings of the 2006 The Cryptographers' Track at the RSA conference on Topics in Cryptology
A robust verifiably encrypted signature scheme
EUC'06 Proceedings of the 2006 international conference on Emerging Directions in Embedded and Ubiquitous Computing
State and Progress in Strand Spaces: Proving Fair Exchange
Journal of Automated Reasoning
Efficient proofs of knowledge of discrete logarithms and representations in groups with hidden order
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
Building reliable mix networks with fair exchange
ACNS'05 Proceedings of the Third international conference on Applied Cryptography and Network Security
RSA extended modulus attacks and their solutions in a kind of fair exchange protocols
ICCNMC'05 Proceedings of the Third international conference on Networking and Mobile Computing
Fair offline payment using verifiable encryption
WISA'04 Proceedings of the 5th international conference on Information Security Applications
Fairness electronic payment protocol
International Journal of Grid and Utility Computing
Efficient ID-Based optimistic fair exchange with provable security
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
Generic, optimistic, and efficient schemes for fair certified email delivery
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
Usable optimistic fair exchange
CT-RSA'10 Proceedings of the 2010 international conference on Topics in Cryptology
Verifiably encrypted signature scheme without random oracles
ICDCIT'05 Proceedings of the Second international conference on Distributed Computing and Internet Technology
A calculus for privacy-friendly authentication
Proceedings of the 17th ACM symposium on Access Control Models and Technologies
An efficient certified email protocol
ISC'07 Proceedings of the 10th international conference on Information Security
Distributing trusted third parties
ACM SIGACT News
Design and formal verification of a CEM protocol with transparent TTP
Frontiers of Computer Science: Selected Publications from Chinese Universities
Fair private set intersection with a semi-trusted arbiter
DBSec'13 Proceedings of the 27th international conference on Data and Applications Security and Privacy XXVII
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A fair exchange protocol allows two users to exchange items so that either each user gets the other's item or neither user does. In [2], verifiable encryption is introduced as a primitive that can be used to build extremely efficient fair exchange protocols where the items exchanged represent digital signatures. Such protocols may be used to digitally sign contracts.This paper presents new simple schemes for verifiable encryption of digital signatures. We make use of a trusted third party (TTP) but in an optimistic sense, i.e., the TTP takes part in the protocol only if one user cheats or simply crashes. The performance of our schemes significantly surpasses that of prior art.