The Theory of Cryptography Conference deals with the paradigms, approaches and techniques used to conceptualize, define and provide solutions to natural cryptographic problems.

TCC 2004 and TCC 2005 were held at MIT (Cambridge, MA, USA) and TCC 2006 was held at Columbia University (New York, NY, USA).

The Fourth Theory of Cryptography Conference (TCC 2007) will be held from February 21 to February 24 in Amsterdam, The Netherlands, and it takes place in the Trippenhuis, the headquarters of the Royal Dutch Academy of Arts and Sciences (KNAW).

TCC 2007 is organized by the International Association for Cryptologic Research (IACR). This is done in cooperation with the Cryptology and Information Security Group at CWI, Amsterdam, the Mathematical Institute, Leiden University, and DIAMANT, the Dutch national mathematics cluster for discrete interactive and algorithmic algebra and number theory.