This paper was presented in part at the 2011 IEEE Radio and Wireless Symposium (RWS 2011), Phoenix, AZ, January 2011.
Modified data encryption standard encryption algorithm with improved error performance and enhanced security in wireless fading channels†
Article first published online: 5 MAY 2014
Copyright © 2014 John Wiley & Sons, Ltd.
Security and Communication Networks
Volume 8, Issue 4, pages 565–573, 10 March 2015
How to Cite
2015) Modified data encryption standard encryption algorithm with improved error performance and enhanced security in wireless fading channels, Security Comm. Networks, 8, 565–573, doi: 10.1002/sec.1003., and (
- Issue published online: 16 JAN 2015
- Article first published online: 5 MAY 2014
- Manuscript Accepted: 20 FEB 2014
- Manuscript Revised: 7 JAN 2014
- Manuscript Received: 3 NOV 2011
- data encryption standard;
- avalanche criterion;
- error performance;
- wireless channel;
- encryption complexity
Encryption is becoming a vital process to ensure security over the wireless channel. However, using well-known encryption algorithms to encrypt data in wireless communication results in a catastrophic error because of the avalanche effect, which is an inherited criterion to ensure security. Although this criterion is desirable, these algorithms do not take into account the error characteristics of the wireless channel. Therefore, if an error occurs in the encrypted data over the channel, the decryption process at the receiver results in half the original bits to be in error because of this criterion. Hence, the need for a new secure encryption algorithm that takes into account the error characteristics of the wireless channel becomes necessary. In this paper, we propose a modification to the data encryption standard (DES) to make it secure and immune to errors caused by the wireless channel. We observe that using the modified algorithm in wireless channels improves the bit error rate performance as well as security compared with DES. We consider an additive white Gaussian noise with fading and evaluate the performance of the proposed algorithm in terms of bit error rate. We also show that the proposed algorithm is secure as compared with DES. Copyright © 2014 John Wiley & Sons, Ltd.