Logics of time and computation
Logics of time and computation
ACM Transactions on Computer Systems (TOCS)
A calculus for access control in distributed systems
ACM Transactions on Programming Languages and Systems (TOPLAS)
Proceedings of the 24th ACM SIGPLAN-SIGACT symposium on Principles of programming languages
cardTAP: Automated Deduction on a Smart Card
AI '98 Selected papers from the 11th Australian Joint Conference on Artificial Intelligence on Advanced Topics in Artificial Intelligence
A Labelled Sequent System for Tense Logic Kt
AI '98 Selected papers from the 11th Australian Joint Conference on Artificial Intelligence on Advanced Topics in Artificial Intelligence
TABLEAUX '99 Proceedings of the International Conference on Automated Reasoning with Analytic Tableaux and Related Methods
TARK '90 Proceedings of the 3rd conference on Theoretical aspects of reasoning about knowledge
Which security policy for multiplication smart cards?
WOST'99 Proceedings of the USENIX Workshop on Smartcard Technology on USENIX Workshop on Smartcard Technology
A model-theoretic approach to the verification of situated reasoning systems
IJCAI'93 Proceedings of the 13th international joint conference on Artifical intelligence - Volume 1
CardS4: Modal Theorem Proving on Java Smartcards
E-SMART '01 Proceedings of the International Conference on Research in Smart Cards: Smart Card Programming and Security
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We describe an implementation of a Java program to perform automated deduction in propositional multi-modal logics on a Java smart card. The tight space limits of Java smart cards make the implementation non-trivial. A potential application is to ensure that applets down-loaded off the internet conform to personalised security permissions stored on the Java card using a security policy encoded in multi-modal logic. In particular, modal logic may be useful to ensure that previously checked "trust" relationships between pre-existing multiple applets on a Java card are not broken by the addition of a new applet. That is, by using multi-modal logic to express notions of permissions and obligations, we can turn the security check into an on-board theorem proving task. Our theorem prover itself could be down-loaded "just in time" to perform the check, and then deleted to free up space on the card once the check has been completed. Our work is thus a "proof of principle" for the application of formal logic to the security of multi-application Java cards.