: One major challenge for digitally signing a document is the so called “what you see is what you sign” problem. XML as a meta language for encoding semistructured data offers ...
Nils Gruschka, Florian Reuter, Norbert Luttenberge...
Abstract. In this paper, we give a first example of identity based undeniable signature using pairings over elliptic curves. We extend to the identity based setting the security m...
In order to decide on advertisement fees for web servers, Naor and Pinkas introduced (threshold) metering schemes secure against coalitions of corrupt servers and clients. They sho...
Abstract. As the amount of digitalized contents increases rapidly, ‘security’ necessarily arises as one of the most important issues. The main distribution channel of digital c...
We propose a novel and robust hashing paradigm that uses iterative geometric techniques and relies on observations that main geometric features within an image would approximately ...