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+title: Seminar by Felix Stutz on Automated Verification of Security Protocols 
+---
+Felix Stutz gave a talk on Monday on Automated Verification of Security Protocols. 
+This work is part of the project he is doing with Emanuele D’Osualdo and will 
+inform his Master Thesis.
+The abstract is: 
+Security protocols are distributed programs that are designed to achieve secure 
+communications using cryptography. A distinctive feature of the security properties 
+of protocols is that they must hold in the presence of an active adversarial 
+environment, and this makes them challenging to verify. An important example 
+of such a security property is secrecy: can the protocol leak a (secret) message 
+to the environment as a result of interference by the intruder?
+This project's goal is to develop a new algorithm to verify secrecy of cryptographic 
+protocols with unbounded sessions and nonces.
+The novelty of the approach, based on a new decidability result 
+by [D'Osualdo et al.(CSF17)](http://psvg.doc.ic.ac.uk/publications/DOsualdo2017Deciding.html), 
+is in how the unboundedness caused by the use of unlimited nonces can be tamed 
+algorithmically. We will present a new verification algorithm for secrecy based 
+on symbolic representations of inductive invariants of protocols. 
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