News
Adi Shamir -- the "S" in "RSA" -- is visiting IAIK. Within his visit, he will give a talk on September 16th. SHA-3 hash bash at IAIK IAIK organizes WEWoRC 2009 Selected Areas in Cryptography (SAC 2009) co-chaired by Vincent Rijmen IAIK's new hash function "Grøstl" submitted to the NIST SHA-3 competition
Experts in Analyzing the Security of Symmetric Cryptographic Primitives
The IAIK Krypto research group focuses on the security analysis of symmetric cryptographic primitives. For this purpose, we apply and adapt existing mathematical frameworks to practical designs and design methods. We conduct basic and applied research and offer consulting services.
Current Research Topics
- Analysis of Modern Cryptographic Hash Functions
The security of electronic applications depends on the security of the underlying cryptographic components. Cryptographic hash functions are one type of components. A popular hash function is SHA-1, which was designed by the NSA. Recent developments in cryptanalysis have cast doubts on the security of hash functions in general, and SHA-1 in particular. We want to investigate in detail the security of commonly used hash functions. The first goal of the project is to demonstrate weaknesses in the hash function SHA-1, world wide the most used hash function. The second goal of the project is to extend the research to recently proposed alternative hash functions. The third goal is to come up with an own design. For more information on our results on SHA-1 is available here. - AES Security and Implementations
The challenge in cryptographic research is to construct mathematical transformations that have desirable security properties on the one hand, but on the other hand they should also be efficiently realizable in hardware and/or software. The most interesting event of the end of the 1990's in this respect was doubtlessly the selection process for a new encryption standard AES by the National Institute of Standards and Technology (NIST).
The Advanced Encryption Standard (AES) competition received submissions, evaluations and other contributions from all over the world. Even after the selection of the AES, the research continues. The development of new cryptanalysis techniques necessitates continuous re-evaluation of the security. The introduction of new applications puts new demands on implementations and requires rethinking the possibilities for optimization of performance, energy consumption, cost, … We study AES extensively both from the security and the implementation viewpoint. A state-of-the-art overview on the research on AES is available at our AES Lounge.
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