Title: RC5 implementation in ARM platform for cryptographic applications

Authors: A. Ruhan Bevi; S. Malarvizhi; Shubhra Saxena

Addresses: Department of Electronics and Communication Engineering, SRM University, Kattankulathur – 603203, Tamilnadu, India ' Department of Electronics and Communication Engineering, SRM University, Kattankulathur – 603203, Tamilnadu, India ' Department of Electronics and Communication Engineering, SRM University, Kattankulathur – 603203, Tamilnadu, India

Abstract: Due to recent advancements in technology, information security is becoming the biggest challenge to achieve in the field of wireless communications. To ensure secured transmission of data, data is encrypted and decrypted using cryptographic algorithms. The RC5 encryption algorithm is one of those cryptographic algorithms widely used to meet the security demands of the industry. This paper proposes the design and implementation of RC5 algorithm in the ARM 7TDMI processor. The ARM-based implementation enhances the performance of the crypto system with the reduced cost compared to the hardware implementations in FPGA. The testing of the encryption and decryption units with a constant key is communicated using UART module. The analysis of the implementation parameters like code size, execution time of the key expansion module for the RC5 computations are documented. The results show that the code size and the execution time are reduced and tailored for power constraint applications.

Keywords: RC5 encryption; cryptography; block cipher; ARM processor; information security; wireless communications; code size; execution time; power constraints.

DOI: 10.1504/IJICT.2014.063225

International Journal of Information and Communication Technology, 2014 Vol.6 No.3/4, pp.251 - 259

Received: 18 Mar 2013
Accepted: 21 Aug 2013

Published online: 26 Jul 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article