Overordnede kursusmål:

De studerende lærer udvalgte teknikker som bruges til at knække kryptografiske systemer. De opnår en forståelse for, hvordan disse teknikker implementeres og hvordan et system kan beskyttes mod dem.

Læringsmål:

En studerende, der fuldt ud har opfyldt kursets mål, vil kunne:

• Justify cryptographical standard assumptions, such as Kerchkoffs’ principle, known or chosen plaintext.
• Explain the difference between key length and key strength, and determine the latter in application scenarios.
• Explain the roles of keys, randomisation vectors, and nonces in cryptographical systems, and make the right choices for practical systems.
• Explain the different ways of generating randomness for cryptographic purposes, and make the right choices for practical systems.
• Explain the working principle of different types of time-memory-tradeoffs, including suitable countermeasures.
• Crack simple cryptosystems with frequency analysis
• Crack practical cryptosystems with time-memory tradeoff attacks
• Crack passwords of practical computer systems
• Efficiently work and communicate in teams
• Produce concise technical reports

Kursusindhold:

Kryptografiske grundlag, frekvensanalyse, nøgler, tilfældige værdier, engangsværdier, time-memory tradeoffs, nøglehåndtering.

Kursusansvarlig:

Andrey Bogdanov , Lyngby Campus, Bygning 324, Tlf. (+45) 4525 5472 , anbog@dtu.dk
Lars Ramkilde Knudsen , Lyngby Campus, Bygning 324, Tlf. (+45) 4525 3048 , lrkn@dtu.dk