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TSIT02 Computer security

The course takes place in period HT2 and can be included in several of our longer educations, is compulsory for students taking the security profile and is also taken by many Master's students, Erasmus students and others. There is a list below that briefly describes the course content, a description of the course goals can be found on another page. The lectures and all literature is in English. The most up-to-date course information, presentation files and material is available in the Lisam course room.


There are 12 two-hour lectures, two guest lectures, and a lab course that spans the entire course duration. Two two-hour coaching sessions are reserved for each lab group.

Contact information

Main lecturer: Guilherme Xavier
Lecturers: Ingemar Ragnemalm, Joakim Argillander,
Examiner: Guilherme Xavier
Teaching assistant: Joakim Argillander
Biometry lecturer: Ingo Hölscher, LiU-IT
Legal lecturer: Anna Süpke and Johannes Hassmund


The textbooks we use for this course are Computer Security: Principles and Practice, 3rd Edition and Ross Anderson: Security Engineering (Wiley, 2008). The second book is available online, free of charge, at the author's homepage. We won't use the book too much during the course so we recommend the online version.

Course plan

Lecture 1 Brief history, terminology, measuring security Guilherme Ch 1, 25.5
Lecture 2 Authentication, tokens, biometry Ingo Ch 15
Lecture 3 Access control Jonathan Ch 4.1-4.2.2, 8.1-8.3, 9.2.1
Lecture 4 Web security, penetration testing, lab preparation Niklas N/A
Lecture 5 Authentication, tokens, biometry (continued) Ingo Ch 15
Lecture 6 Implementation examples and Virtualization Guilherme Ch 4.2.3, 4.2.5, 4.2.7, 4.2.9-4.2.10, 8.5
Lecture 7 Database security and software security (briefly) Guilherme Ch 4.2.8, 4.4.1-4.4.2,
Lecture 8 Cryptography as a security tool Jan-Åke N/A
Lecture 9 Key management and trust, side channel attacks Guilherme N/A
Lecture 10 Legal perspectives on computer security Anna and Johannes N/A
Lecture 11 Communication and network security Guilherme Ch 21
Lecture 12 Social engineering, New access control paradigms, DRM, the Cloud Guilherme N/A
Guest lecture See the guest lecture.

Updated lecture slides appear shortly after each lecture on Lisam, and the chapter ref. is to Ross Anderson: Security Engineering (Wiley, 2008)


The Lab PM will be available on Lisam on the second week of the course. The lab does not start until the end of the third week. More details will be given in Lecture 5 and in the Lab PM.

Guest lectures

These seminars are not a compulsory part of the course, but provide interesting insight in how security is used in the industry.

Guest lecture 1: Bodforss consulting.

Date: 9th of December at 10:15
Location: C2

Rikard will talk about a critical vulnerability he discovered five years ago and some of the challenges in the disclosure process. The talk is a spin-off on the presentation he gave on CS3 Sthlm. In the second part of the lecture Rikard will discuss the security profession as a career path. What should you do if you want to pursue a career in IT and information security. What is the value of certification, and what experience is good to have. Finally some tips on how to kick start your career in the wonderful field of IT and information security.

About the presenters: Rikard Bodforss works as CEO and Senior Partner at Bodforss Consulting AB in Sweden. He has over 25 years of experience working with IT and information security from both private and public sector. Rikard holds CISSP and CISA certifications and was awarded the Thomas Fitzgerald award by ISACA for the highest score in the world on the CISA exam in 2009. His specialty is securing industrial control systems and public critical infrastructure. His sector experience ranges from automotive, finance and healthcare to energy and water. Before founding Bodforss Consulting he worked as CIO for Gothenburg Sustainable Waste and Water. Rikard is a popular speaker on international conferences, and in his free time he is part of the team behind the Swedish security podcast "Säkerhetspodcasten"


A written examination three times a year. See the central schedule for examinations. Previous exams can be found in Lisam.

The examination will contain questions from the level of merely repeating and explaining facts to drawing advanced conclusions from knowledge in the subject. In order to pass, a student should be able to repeat facts about basic principles and typical countermeasures, to understand the concepts used, and to identify relevant basic security concepts in simple situations. For higher grades, the student should be able to do more detailed analyses, to apply general concepts in more complex situations and to draw conclusions from this application of general principles. Knowledge of specific details in products and protocols, such as how to change permissions in UNIX, how to use an NSF log, etc is not required.

Informationsansvarig: Guilherme Xavier
Senast uppdaterad: 2021-11-02