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DD2520 Applied Cryptography 7.5 credits

This course serves as an introduction to cryptography from a computer security and privacy perspective.

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Headings with content from the Course syllabus DD2520 (Spring 2021–) are denoted with an asterisk ( )

Content and learning outcomes

Course contents

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.

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.

Course disposition

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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.

Recommended prerequisites

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Examination and completion

If the course is discontinued, students may request to be examined during the following two academic years.

Grading scale

A, B, C, D, E, FX, F


  • 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.

Opportunity to complete the requirements via supplementary examination

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Opportunity to raise an approved grade via renewed examination

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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 web

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

Course web DD2520

Offered by

Main field of study

Computer Science and Engineering

Education cycle

Second cycle

Add-on studies

No information inserted

Transitional regulations

The outdated module TEN1 can be examined through compensatory assignments.

Supplementary information

In this course, the EECS code of honor applies, see: