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My name is Jian Guo, I am currently an Assistant Professor with the School of Physical and Mathematical Sciences of Nanyang Technological University in Singapore, and lead the Cryptanalysis Taskforce team. My research interests focus on symmetric-key cryptography, especially cryptanalysis, design and implementation of (lightweight) hash functions, block ciphers, authenticated encryption schemes, and their applications such as message authentication codes.


Hiring: 
2017-10-31:     As advertised here, we have 2 PhD vacancies with research scholarship, if you are interested in symmetric-key cryptography research in NTU Singapore, send me an email with CV and reference letters.

News:
2018-03-05:     Joint with L. Song, J. Guo, and D. Shi, the paper entitled "New MILP Modeling: Improved Conditional Cube Attacks to Keccak-based Constructions" won the Kejte cryptanalysis prize.
2018-03-05:    Joint with C. Chaigneau, T. Fuhr, H. Gilbert, J. Guo, J. Jean, J. R. Reinhard, L. Song, the paper entitled "Key-Recovery Attacks on Full Kravatte" won the Best Paper Award of FSE 2018. The paper broke the full Kravatte (a PRF design based on the SHA-3 round function), and several subsequent patched versions.
2017-02-26:    The CATF team solved the 6-round collision challenge of Keccak[r=1440,c=160,nr=6], refer to this announcement.
2016-08-15:    CLOC+SILC is selected into the 3rd round of CAESAR competition.
2016-08-01:    PHOTON is now part of ISO lightweight hash function standards, ISO/IEC 29192-5:2016.
2016-07-11:    The CATF team extended the 5-round collision attack to Keccak[r=640,c=160, nr=5], see announcement.
2016-05-27:    The CATF team solved the 5-round collision challenge of Keccak[r=1440,c=160, nr=5], refer to http://keccak.noekeon.org/crunchy_may2016.html.
2016-04-25:    The CATF team solved the 3-round preimage challenge of Keccak[r=1440, c=160, nr=3] and Keccak[r=640, c=160, nr=3], refer to http://keccak.noekeon.org/crunchy_april2016.html.

Education
01.2007 - 09.2010 Doctor of Mathematical Sciences
Supervisor: Huaxiong Wang		 School of Physical and Mathematical Sciences
Nanyang Technological University, Singapore
08.2003 - 11.2006 Bachelor of Engineering
(with First Class Honors)
Supervisor: Suiping Zhou		 School of Computer Engineering
Nanyang Technological University, Singapore

Employment

03.2013 - present Nanyang Technological University, Singapore
09.2010 - 02.2013 Institute for Infocomm Research, Singapore
01.2007 - 09.2010 Nanyang Technological University, Singapore

Teaching

Discrete Mathematics: AY14/15 S2, AY15/16 S2, AY18/19 S1
Algorithms and Computing II: AY17/18 S2

Contact

Address: Division of Mathematical Sciences, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371.
Tel:    (+65) 6514 8399    Fax:   (+65) 6515 8213
Last partially updated on 04 June 2018.