Welcome to the CryptoLUX Wiki!

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Swiss NEMA cipher machine

CryptoLUX is a cryptology research group within Security and Trust interdisciplinary center ([wwwen.uni.lu/snt SnT]) and the Computer Science and Communications (CSC) research unit of the University of Luxembourg. Professor Alex Biryukov is head of CryptoLUX and leads a team consisting of two permanent staff members (Johann Großschädl, Yann Le Corre), several postdoctoral researchers, and about half a dozen Ph.D. students. The CryptoLUX group also forms part of the Laboratory of Algorithmics, Cryptology and Security (LACS), whose official Internet presence can be found at http://lacs.uni.lu. This wiki serves as an informal platform for the presentation of ongoing research projects and the dissemination of research outcome, ex. peer-reviewed publications, tools for cryptanalysis, source code of cryptographic software. We do our best to ensure the correctness of the information provided by this wiki, but, of course, we can not guarantee that the content is suitable for any particular purpose, especially if it covers work in progress.

Mission and Vision

The mission of the CryptoLUX group is to define, conduct, and disseminate leading-edge research in cryptology (and closely related fields), and to pass the knowledge gained from research on to students and industry partners. CryptoLUX is one of the few academic research teams worldwide that possesses expertise across the full spectrum of cryptology, ranging from theoretical foundations to implementation aspects and applications. Our mission and objectives are devised in accordance with the three main goals of the University of Luxembourg, which are teaching, research and knowledge transfer at the highest international level. Members of CryptoLUX collaborate with top research groups around the world. Our current research projects cover a wide variety of topics including algorithm design (block ciphers, hash functions, proofs of work), cryptanalysis, communication security and privacy enchancing technologies, financial technologies/blockchain, efficient implementations, side-channel attacks, and reverse engineering.

Emerging information and communication technologies, such as cloud computing or the Internet of things, pose a number of unique challenges related to the design and implementation of cryptographic primitives, which has initiated a large of body of research in these areas. Nonetheless, the number of cryptanalytic attacks (both traditional ones as well as side-channel attacks) is steadily increasing, and many of these attacks have led to devastating security breaches with fatal consequences. We envision CryptoLUX to be in the forefront of an international research community that tackles these challenges and develops innovative solutions for complex security problems based on a solid cryptographic foundation. To achieve this, we strive for a greater understanding of how cryptosystems get broken (or otherwise fail) in the real world, how they can be designed and implemented to better resist attacks, and how they should be used to build secure systems and networks.

We organized ESC 2017

ESC (Early Symmetric Crypto) is a Dagstuhl-like seminar series on symmetric cryptography that fosters collaboration instead of competition. ESC 2017 took place January 16–20, 2017 in Canach, Luxembourg. The program chairs of ESC 2017 were Alex Biryukov, Joan Daemen, Stefan Lucks, and Serge Vaudenay. More information can be found here.



Open Positions, Jobs

Open Post-Doc Position in Real World Crypto

Post-Doc in Real World Cryptography (University of Luxembourg)

The Cryptolux team of the University of Luxembourg is offering a 30 months Post-doc position in Applied aka Real World Cryptography. The candidate should have expertise and a strong publication record (at least one paper at top security conferences: USENIX, ACM CCS, IEEE S&P, NDSS, EUROCRYPT, ASIACRYPT, CRYPTO or several papers at FSE, PETS, CHES, FC, DSN, CSF, PKC, ACNS, ESORICS) in one (or several) of the following areas:

  • Applied symmetric cryptography
  • Crypto-currencies, blockchains, financial cryptography
  • Privacy enhancing technologies

The position is available from the 1-June 2017. Applications (CV+motivation)will be considered upon receipt, therefore applying before the deadline is encouraged. We offer exciting international research environment and salary of around 68Keur/year before taxes.

Applications (in English) should contain the following documents:

  • a brief cover letter explaining the candidate's motivation and research interests
  • a detailed CV (including photo)
  • publication list with publications where you were the main contributor clearly marked
  • 2-3 references

Contact: Prof. Alex Biryukov (e-mail: name dot family name (at) uni.lu) Closing Date for Applications: 2017-03-31

Post-Doc in a project FDISC on Applied Crypto

Fixed Term Contract 2 years (CDD), full-time 40 hrs/week Start day: July 2017 or later upon agreement.

The successful candidate will join the CryptoLUX group led by Prof. Alex Biryukov. He or she will contribute to a research project on future directions in symmetric cryptography in the areas of:

  • Lightweight block ciphers and hash functions
  • Side-channel attacks on symmetric cryptosystems and countermeasures
  • Design and security analysis of blockchain technologies
  • Proof-of-work schemes for use in digital currencies or denial-of-service prevention

The University offers a two-year employment contract which may be extended up to five years. Salary is around 68Keur/year before taxes. Applications (in English) should contain the following documents:

  • a brief cover letter explaining the candidate's motivation and research interests
  • a detailed CV (including photo)
  • publication list with publications where you were the main contributor clearly marked
  • 2-3 references

Deadline for applications: April 30, 2017. Applications will be considered upon receipt, therefore applying before the deadline is encouraged.

Contact: Prof. Alex Biryukov (e-mail: name dot family name (at) uni.lu)

PhD in Applied Symmetric Crypto, the PRIDE project

The topics would be related to "Lightweight Encryption Schemes for the Internet of Things".

Watch this space for more details in March.



News and Announcements

See here history of past events.

July 2015 Argon2 has won the PHC competition!!!


January 2016 Dmitry has given talk on "Argon2 and Egalitarian computing" at Real World Cryptography Conference, Stanford, US.

January 2016 Alex, Léo and Dmitry were invited and gave talks at Dagstuhl, Symmetric Crypto seminar.

January 2016 Alex and Dmitry will give talks at SnT FinTech event, Luxembourg.

February 2016 Alex gave Nikita's talk, Nikita gave Alex's talk at Dagstuhl, Modern Cryptography and Security: An Inter-Community Dialogue seminar.

February 2016 Dmitry gave talk at NDSS'16, US about EquiHash.

March 2016 Vesselin and Aleksei gave talks at FSE'16.

March 2016 Dmitry gave talk about Argon2 at EURO S&P'16.

May 2016 Léo gave talk on our new S-box reversing results at Eurocrypt'16, Vienna.

June 2016 Daniel gave talk on Correlation Power Analysis of LW ciphers at ACNS, UK

July 2016 Dmitry will present Argon2 and Equihash at IETF meeting in Berlin.

August 2016 Aleksei gave a talk at CRYPTO'2016 and will participate in Defcon CTF Final.

August 2016 Dmitry gave a talk on Egalitarian computing at Usenix Security'16.

September 2016 Vesselin gave talk at DIAC'16.

October 2016 Léo will give talk about SPARX at the NIST Lightweight crypto workshop.

October 2016 Aleksei and his team have won the hack.lu CTF competition!

October 2016 Zcash cryptocurrency was launched with EquiHash as its proof-of-work.

December 2016 Léo and Vesselin gave talk about SPARX at ASIACRYPT'16 in Hanoi, Vietnam.

January 2017 Alex has organized ESC'17 where many of us gave talks.

February 2017 Dmitry and Sergei attended Ethereum developer conference EDCON in Paris.

March 2017 Sergei participated in a blockchain hackathon in Paris.

March 2017 Léo gave talks about generic muliset-algebraic attacks, ASASA update and exponential S-boxes at the FSE in Tokyo, Japan.

Cryptolux Seminars

How to reach us

We just moved to Belval Campus, Esch-Belval, Luxembourg. About 25 mins from Luxembourg city.


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