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A Model for Asynchronous Reactive Systems and its Application to Secure Message Transmission (2000)
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| Citations: | 176 - 20 self |
BibTeX
@MISC{Pfitzmann00amodel,
author = {Birgit Pfitzmann and Michael Waidner},
title = {A Model for Asynchronous Reactive Systems and its Application to Secure Message Transmission},
year = {2000}
}
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Abstract
We present the first rigorous model for secure reactive systems in asynchronous networks with a sound cryptographic semantics, supporting abstract specifications and the composition of secure systems. This enables modular proofs of security, which is essential in bridging the gap between the rigorous proof techniques of cryptography and tool-supported formal proof techniques. The model follows the general simulatability approach of modern cryptography. A variety of network structures and trust models can be described, such as static and adaptive adversaries. As an example of our specification methodology we provide the first abstract and complete specification for Secure Message Transmission, improving on recent results by Lynch, and verify one concrete implementation. Our proof is based on a general theorem on the security of encryption in a reactive multi-user setting, generalizing a recent result by Bellare et al.
Keyphrases
secure message transmission asynchronous reactive system recent result modular proof modern cryptography reactive multi-user setting first abstract adaptive adversary secure reactive system abstract specification specification methodology trust model secure system complete specification general simulatability approach general theorem sound cryptographic semantics network structure asynchronous network rigorous proof technique first rigorous model tool-supported formal proof technique concrete implementation
