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Center for the Theory of Interactive Computation



CTIC is a Sino-Danish research center that starts operations on April 1st, 2011. The center is a three-year collaboration between the Computer Science Department at Aarhus University, Denmark and ITCS, Tsinghua University, Beijing, China. Center leaders are Andrew Chi-Chih Yao, Tsinghua, and Peter Bro Miltersen, Aarhus.

The focus areas of the center are computational complexity theory, cryptography, quantum information theory, and algorithmic game theory.

CTIC Center website


Merry Christmas and a Happy New Year

2015.12.18We wish you and your families a merry Christmas and a happy new year. We are looking forward to 2016!

Therefore, do not make your own encryption

2015.12.17Jakob Bjerre Jakobsen's computer science thesis confirms that if you face having to make your own app that encrypts chat or other computer program that guarantees conversations via encryption, it is safer to use a proven, state-of-the-art product.

PhD Defense, Søren S. Frederiksen

2015.10.23Søren S. Frederiksen defends his PhD dissertation entitled 'Using semi-algebraic geometry for game theory'

Quantum Workshop has come to an end

2015.10.23Four days of interesting og diverse talks within the areas of quantum information and quantum cryptography have come to an end. Approximately 30 people from academia and industry spent the past days listening to and presenting interesting talks, sharing ideas and knowledge within the selected research areas. We want to thank speakers and participants alike for contributing to some inspiring days.  We will be looking forward to welcoming you back to Aarhus in the future.

CTIC and CFEM welcomes Maciej Obremski.

2015.10.12Maciej Obremski has recently been employed as a Post Doc in the Cryptography and Security group at Department of Computer Science. In connection to his employment he will also be attached to the CTIC and CFEM centers. Maciej has a PhD in Computer Science and M.Sc. in Mathematics from University of Warsaw.  Codes Theory and Tamper-Resilient Cryptography is Marcej's main research area but his research interests are Information Theoretic Cryptography, Randomness Extractors Theory, Boolean Functions and Probability Theory on Abelian Groups. 

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Upcoming Events @ CTIC

Project website

Chinese center leader

Chinese center leader Andrew Chi-Chih Yao, Tsinghua University, China



Associated people

Financed by

The Danish National Research Foundation



Grant for CS activities

15.000.000 DKK