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Secure composition of PKIs with public key protocols

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publication2017 IEEE Computer Security Foundations Symposium
Pages144-158
Number of pages15
ISBN (Electronic)978-1-5386-3217-8
DOIs
DateAccepted/In press - 21 Apr 2017
DateE-pub ahead of print (current) - 28 Sep 2017

Publication series

Name2017 IEEE 30th Computer Security Foundations Symposium (CSF)
PublisherIEEE
ISSN (Electronic)2374-8303

Abstract

We use symbolic formal models to study the composition of public key-based protocols with public key infrastructures (PKIs). We put forth a minimal set of requirements which a PKI should satisfy and then identify several reasons why composition may fail. Our main results are positive and offer various trade-offs which align the guarantees provided by the PKI with those required by the analysis of protocol with which they are composed. We consider both the case of ideally distributed keys but also the case of more realistic PKIs.,,Our theorems are broadly applicable. Protocols are not limited to specific primitives and compositionality asks only for minimal requirements on shared ones. Secure composition holds with respect to arbitrary trace properties that can be specified within a reasonably powerful logic. For instance, secrecy and various forms of authentication can be expressed in this logic. Finally, our results alleviate the common yet demanding assumption that protocols are fully tagged

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  • Full-text PDF (accepted author manuscript)

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via IEEE at https://ieeexplore.ieee.org/document/8049717/authors#authors. Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 255 KB, PDF document

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