| Jacques Stern | |
| Birth Date: | 21 August 1949 |
| Nationality: | French |
| Fields: | Cryptography |
| Workplaces: | École Normale Supérieure |
| Alma Mater: | Paris Diderot University |
| Doctoral Students: | Antoine Joux Brigitte Vallée Serge Vaudenay David Pointcheval |
| Known For: | Pointcheval–Stern signature algorithm |
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]