Visible to the public Performing Security Proofs of Stateful Protocols

TitlePerforming Security Proofs of Stateful Protocols
Publication TypeConference Paper
Year of Publication2021
AuthorsHess, Andreas V., Mödersheim, Sebastian, Brucker, Achim D., Schlichtkrull, Anders
Conference Name2021 IEEE 34th Computer Security Foundations Symposium (CSF)
Keywordsautomated-verification, Automation, Collaboration, Complexity theory, composability, compositionality, Computational modeling, Computer bugs, interactive-theorem-proving, policy-based collaboration, privacy, protocol verification, Protocols, pubcrawl, specification languages, stateful-security-protocols, Tools
AbstractIn protocol verification we observe a wide spectrum from fully automated methods to interactive theorem proving with proof assistants like Isabelle/HOL. The latter provide overwhelmingly high assurance of the correctness, which automated methods often cannot: due to their complexity, bugs in such automated verification tools are likely and thus the risk of erroneously verifying a flawed protocol is non-negligible. There are a few works that try to combine advantages from both ends of the spectrum: a high degree of automation and assurance. We present here a first step towards achieving this for a more challenging class of protocols, namely those that work with a mutable long-term state. To our knowledge this is the first approach that achieves fully automated verification of stateful protocols in an LCF-style theorem prover. The approach also includes a simple user-friendly transaction-based protocol specification language embedded into Isabelle, and can also leverage a number of existing results such as soundness of a typed model
DOI10.1109/CSF51468.2021.00006
Citation Keyhess_performing_2021