Digitally Signed Documents – Ambiguities and Solutions

Pervasive digital signatures: Syntactic robustness and simplicity of signed documents

The action of digitally signing has several intrinsic weaknesses that introduce syntactic and semantic distance between a signer and a relying party. As a result, digitally signed documents cannot be trusted and thus be widely deployed in pervasive environments. We evaluate the syntactic robustness of digitally signed documents by exploiting one key quantitative measure (the structural informat...

A framework for the analysis of the reliability of digital signatures for secure e-commerce

Digital signatures provide a valuable tool for secure internet trading by ensuring data authenticity and integrity and most importantly by enforcing commitment and non-repudiation for the transacting parties. The action of digitally signing has, however, several intrinsic weaknesses that introduce syntactic and semantic distance between a signer and a relying party. As a result, digitally signe...

Towards concrete application of electronic signature

Even though the theory behind digital signatures is fully understood and the related cryptographic methods have proved the efficiency in deploying security services, concrete application of digital signature to real electronic documents is still hindered by the lack of standards. In particular, we lack standards for the format of the data to be signed, the format of the signature itself and the...

ISSE 2002 - Extended Abstract - Long-term conservation of ..

Electronically signed documents can lose value of evidence because the security of cryptographic algorithms decreases in the course of time. In this paper we describe legal, technical and user-oriented requirements for long-term conservation of provability of electronically signed documents, which were systematically examined in the project “ArchiSig Conclusive and secure long term archiving of...

k-Anonymity in Context of Digitally Signed CDA Documents