Cipher feedback mode under go-back-N and selective-reject protocols in error channels
Article first published online: 12 OCT 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Security and Communication Networks
Volume 6, Issue 8, pages 942–954, August 2013
How to Cite
Liang, X., Xiao, Y., Ozdemir, S., Vasilakos, A. V. and Deng, H. (2013), Cipher feedback mode under go-back-N and selective-reject protocols in error channels. Security Comm. Networks, 6: 942–954. doi: 10.1002/sec.638
- Issue published online: 10 JUL 2013
- Article first published online: 12 OCT 2012
- cipher feedback mode;
- flow control;
- error channel
To produce ciphertexts, two modes of encryption are applied—block ciphers, which encrypt a fixed size block of plaintext at a time, and stream ciphers, which encrypt stream data, one or more bits at a time. As one of stream ciphers, the cipher feedback (CFB) mode is implemented by a block cipher via multiple stages, and in each stage, 1 bit or a number of bits of plaintext are encrypted at a time. Throughout this paper, the study will focus upon the error performance of the stream-based CFB under two sliding-window protocols, go-back-N and selective-reject, in an error channel in terms of throughput. We model the performance of the CFB in terms of application-level throughput and derive the number of stages needed to achieve the optimal throughput, under a given error rate in an error channel. Copyright © 2012 John Wiley & Sons, Ltd.