Sklavos - Electrical & Computer Engineering Dept., University of Patras
Shahraki - Electrical Engineering Dept., University of Sistan & Baluchistan
Souras - Electrical & Computer Engineering Dept., University of Patras

The special needs for cryptography, of both wired and wireless communications, have attracted the researchers' major interest in the design of new encryption algorithms. Rabbit cipher is a latest developed stream cipher, with special features for software performance. Of course, new algorithms are intended to perform efficiently for both software and hardware applications. In this paper, an architecture and the VLSI implementation of Rabbit cipher are proposed. An FPGA device has been used, as the integration platform of the introduced system architecture. Furthermore, both the implementation cost and the performance evaluation concerning the hardware integration are exploited. Finally, comparisons regarding other well-known stream ciphers implementations are given.

Rabbit Stream Cipher, Performance Evaluation, Hardware Implementation, FPGA, Chaotic Maps