Rabbit: A New High-Performance Stream Cipher

Abstract. We present a new stream cipher, Rabbit, based on iterating a set of coupled nonlinear functions. Rabbit is characterized by a high performance in software with a measured encryption/decryption speed of 3.7 clock cycles per byte on a Pentium III processor. We have performed detailed security analysis, in particular, correlation analysis and algebraic investigations. The cryptanalysis of Rabbit did not reveal an attack better than exhaustive key search.

• Type: Conference
• Year: 2003
• Where: FSE
• Authors: Martin Boesgaard, Mette Vesterager, Thomas Pedersen, Jesper Christiansen, Ove Scavenius
• Keywords: Cryptography, Detailed Security Analysis, Exhaustive Key Search, FSE 2003, Pentium III Processor