Souradyuti Paul, Bart Preneel, Gautham Sekar. Distinguishing Attacks on the Stream Cipher Py. In Matthew J. B. Robshaw, editor, Fast Software Encryption, 13th International Workshop, FSE 2006, Graz, Austria, March 15-17, 2006, Revised Selected Papers. Volume 4047 of Lecture Notes in Computer Science, pages 405-421, Springer, 2006. [doi]
Abstract is missing.