Jacques Stern (cryptographer)

For the French politician, see Jacques Stern (politician).

Jacques Stern (born 21 August 1949) is a cryptographer, currently a professor at the École Normale Supérieure. He received the 2006 CNRS Gold medal.^[1][2] His notable work includes the cryptanalysis of numerous encryption and signature schemes, the design of the Pointcheval–Stern signature algorithm, the Naccache–Stern cryptosystem and Naccache–Stern knapsack cryptosystem, and the block ciphers CS-Cipher, DFC, and xmx. He also contributed to the cryptanalysis of the SFLASH signature scheme.^[3]

Jacques Stern
Jacques Stern making a speech before receiving the CNRS gold medal
Born	(1949-08-21) 21 August 1949 (age 75)
Nationality	French
Alma mater	Paris Diderot University
Known for	Pointcheval–Stern signature algorithm
Scientific career
Fields	Cryptography
Institutions	École Normale Supérieure
Doctoral advisor	Jean-Louis Krivine [fr]
Doctoral students	Antoine Joux Brigitte Vallée Serge Vaudenay David Pointcheval

Awards

• Knight of the Légion d'honneur recipient
• 2005 CNRS Silver Medal
• IACR Fellow, 2005
• 2006 CNRS Gold medal
• 2007 RSA Award for Excellence in Mathematics