Basic concepts and principles of cryptography, intuition about security, implementation and engineering aspects as well as influence on society, black box analysis, use of cryptographic primitives such as symmetric and asymmetric encryption in applications, digital signatures, cryptographic hash functions and simple crypto systems and cryptographic protocols.
DD2520 Applied Cryptography 7.5 credits

This course serves as an introduction to cryptography from a computer security and privacy perspective.
Information per course offering
Choose semester and course offering to see current information and more about the course, such as course syllabus, study period, and application information.
Information for Spring 2026 tilkry26 programme students
- Course location
KTH Campus
- Duration
- 13 Jan 2026 - 13 Mar 2026
- Periods
- P3 (7.5 hp)
- Pace of study
50%
- Application code
60279
- Form of study
Normal Daytime
- Language of instruction
English
- Course memo
- Course memo is not published
- Number of places
Places are not limited
- Target group
Students in year 3 and students admitted to a master's programme, as long as it can be included in the programme.
- Planned modular schedule
- [object Object]
- Schedule
- Schedule is not published
Contact
Course syllabus as PDF
Please note: all information from the Course syllabus is available on this page in an accessible format.
Course syllabus DD2520 (Spring 2021–)Content and learning outcomes
Course contents
Intended learning outcomes
After passing the course, the student should be able to:
- use basic terminology in computer security and cryptography correctly
- describe cryptographic concepts and explain their security properties
- find and use documentation of cryptographic libraries and standards
- identify and categorise threats against a cryptographic IT-system at a conceptual level, suggest appropriate countermeasures and present the reasoning to others
in order to
- as citizen and engineer be able to discuss applied cryptography in general, and risks of using/developing cryptography in particular
- in professional life and/or research and development project be able to evaluate challenges in software development related to cryptography.
Literature and preparations
Specific prerequisites
Completed course in computer security equivalent to DD2395.
Active participation in a course offering where the final examination is not yet reported in LADOK is considered equivalent to completion of the course.
Being registered for a course counts as active participation. The term 'final examination' encompasses both the regular examination and the first re-examination.
Literature
Examination and completion
If the course is discontinued, students may request to be examined during the following two academic years.
Grading scale
Examination
- INL1 - Assignments, 2.5 credits, grading scale: P, F
- LAB1 - Laboratory work, 5.0 credits, grading scale: A, B, C, D, E, FX, F
Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.
The examiner may apply another examination format when re-examining individual students.
Examiner
Ethical approach
- All members of a group are responsible for the group's work.
- In any assessment, every student shall honestly disclose any help received and sources used.
- In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.
Further information
Course room in Canvas
Offered by
Main field of study
Education cycle
Transitional regulations
The outdated module TEN1 can be examined through compensatory assignments.
Supplementary information
In this course, the EECS code of honor applies, see:
http://www.kth.se/en/eecs/utbildning/hederskodex