| Souradyuti Paul | |
| Nationality: |  Indian |
| Work Institution: | Indian Institute of Technology Bhilai University of Waterloo NIST Katholieke Universiteit Leuven |
| Alma Mater: | Katholieke Universiteit Leuven Indian Statistical Institute Jadavpur University |
| Field: | Cryptography |
| Known For: | Hash Functions Cryptanalysis Fast Wide-pipe Hash Mode Stream Ciphers |
| Doctoral Advisor: | Bart Preneel |
| Website: | http://homes.esat.kuleuven.be/~psourady/ |
Souradyuti Paul (born 1976) is an Indian cryptologist. Formerly a member of COSIC, he is currently working as an associate professor at Indian Institute of Technology Bhilai[1] and a Guest Researcher for the National Institute of Standards and Technology in the United States. He participated in cryptanalysis of RC4, Helix and Py family of ciphers among others. He has co-designed the following ciphers
He also contributed to the design of a hash function iteration mode of operation Fast-widepipe.[2] While working at NIST Dr. Paul has worked towards the development of US government secure hash standard SHA-3 being selected through a public competition.[3]