Applied cryptography (2nd ed.): protocols, algorithms, and source code in C
Applied cryptography (2nd ed.): protocols, algorithms, and source code in C
Authentication of signatures using public key encryption
Communications of the ACM
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Securing digital signatures for non-repudiation
Computer Communications
Maintaining the Validity of Digital Signatures in B2B Applications
ACISP '02 Proceedings of the 7th Australian Conference on Information Security and Privacy
Optimized Certificates --- A New Proposal for Efficient Electronic Document Signature Validation
EuroPKI '08 Proceedings of the 5th European PKI workshop on Public Key Infrastructure: Theory and Practice
An intensive survey of fair non-repudiation protocols
Computer Communications
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An important feature of digital signatures is to serve as non-repudiation evidence. To be eligible as non-repudiation evidence, a digital signature on an electronic document should remain valid until its expiry date which is specified by some non-repudiation policy. As signature keys may be compromised and the validity of signatures may become questionable, additional security mechanisms need to be imposed on digital signatures. This paper examines the mechanisms for maintaining the validity of digital signatures, and provides a guideline on the use of these mechanisms in various context of applications.