Information Security of Embedded Systems : Design of Secure Systems Prof. Dr. Holger Schlingloff Institut für Informatik und Fraunhofer FIRST

Embedded Security © Prof. Dr. H. Schlingloff Structure 1. Introductory example 2. Embedded systems engineering 1.definitions and terms 2.design principles 3. Foundations of security 1.threats, attacks, measures 2.construction of safe systems 4. Design of secure systems 1.design challenges 2.safety modelling and assessment 3.cryptographic algorithms 5. Communication of embedded systems 1.remote access 2.sensor networks 6. Algorithms and measures 1.digital signatures 2.key management 3.authentification 4.authorization 7. Formal methods for security 1.protocol verification 2.logics and proof methods

Embedded Security © Prof. Dr. H. Schlingloff Recap –Security Assessment Common Criteria general model catalogue of recommendations: threats, goals, requirements guideline on evaluation methodology and process (EAL)

Embedded Security © Prof. Dr. H. Schlingloff Cryptology

Embedded Security © Prof. Dr. H. Schlingloff Cryptosystems

Embedded Security © Prof. Dr. H. Schlingloff 20106

Embedded Security © Prof. Dr. H. Schlingloff Stream Cyphers and Block Cyphers

Embedded Security © Prof. Dr. H. Schlingloff Cryptanalysis

Embedded Security © Prof. Dr. H. Schlingloff Attack Models

Embedded Security © Prof. Dr. H. Schlingloff Cypher Classification

Embedded Security © Prof. Dr. H. Schlingloff

Embedded Security © Prof. Dr. H. Schlingloff

Embedded Security © Prof. Dr. H. Schlingloff

Embedded Security © Prof. Dr. H. Schlingloff DES, Data Encryption Standard

Embedded Security © Prof. Dr. H. Schlingloff

Embedded Security © Prof. Dr. H. Schlingloff AES, Advanced Encryption Standard

Embedded Security © Prof. Dr. H. Schlingloff AES rounds

Embedded Security © Prof. Dr. H. Schlingloff

Embedded Security © Prof. Dr. H. Schlingloff Implementations

Embedded Security © Prof. Dr. H. Schlingloff Evaluating Block Cyphers