In this work, we aim to reduce the computational costs of using public-key digital signatures in securing routing protocols. Two protocols (COSP and IOSP) using one-time digitalsi...
We study methods for reducing the cost of secure link state routing. In secure link state routing, routers may need to verify the authenticity of many routing updates, and some ro...
—A multi-party contract signing (MPCS) protocol allows a set of parties to exchange messages with each other to reach a state in which either each of them has a pre-agreed contra...
In an attempt to expand Public Key Infrastructure (PKI) usage to a ubiquitous and mobile computing environment, we found that the deployment of the PKI on a resource-constrained de...
A contract is a non-repudiable agreement on a given contract text, i.e., a contract can be used to prove agreement between its signatories to any verifier. A contract signing sche...
Birgit Pfitzmann, Matthias Schunter, Michael Waidn...