My name is Jian Guo, I am currently Senior Research Scientist and Principal Investigator with Temasek Laboratories at Nanyang Technological University in Singapore, leading the Cryptanalysis Taskforce - CATF 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.

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.


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


03.2013 - present Senior Research Scientist
Principal Investigator
Research Fellow
 Nanyang Technological University, Singapore
09.2010 - 02.2013 Scientist  Institute for Infocomm Research, Singapore
01.2007 - 09.2010 Project Officer  Nanyang Technological University, Singapore


Discrete Mathematics: 2014S2, 2015S2


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 09 Nov 2016