A Trace Logic for Local Security Properties

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Abstract

We propose a new simple trace logic that can be used to specify local security properties, i.e. security properties that refer to a single participant of the protocol specification. Our technique allows a protocol designer to provide a formal specification of the desired security properties, and integrate it naturally into the design process of cryptographic protocols. Furthermore, the logic can be used for formal verification. We illustrate the utility of our technique by exposing new attacks on the well studied TMN protocol.

Keywords

Trace logic
local security property
specification
TMN protocol

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1

We would like to thank Cabernet and the EYES Project (IST- 2001-34734) for their support of this work.