In this paper, we address the following problem: \ Is it possible to weaken/attack a scheme when a (provably) secure cryptosystem is used? ". The answer is yes. We exploit we...
Formal modeling and verification of security protocols typically assumes that a protocol is executed in isolation, without other protocols sharing the network. We investigate the...
The combination of two security protocols, a simple shared-key communication protocol and the Di e-Hellman key distribution protocol, is modeled formally and proved correct. The m...
Service-oriented architectures (SOAs) are a commonly used paradigm for IT infrastructures in various fields. Due to their flexibility and the easy accessibility of their underly...
Sphinx is a cryptographic message format used to relay anonymized messages within a mix network. It is more compact than any comparable scheme, and supports a full set of security...