Rc5 Algorithm: Potential Cipher Solution for Security in Wireless Body Sensor Networks (Wbsn)

The patient-related data stored in the WBSN plays an important role in medical diagnosis and treatment; hence it is essential to ensure the security of these data. Access to patient-related data must be strictly limited only to authorized users; otherwise, the patient’s privacy could be abused. There has been very little study done in encryption algorithms suitable for WBSN. In this paper we focus on RC5 encryption algorithm as a potential cipher solution for providing data protection in WBSN. RC5 can be considered as one of the best ciphers in terms of overall performance, when used in nodes with limited memory and processing capabilities. In WBSN the size of data varies for different medical (health parameters such as ECG, EEG, Blood pressure, Blood Sugar etc) or nonmedical (video, audio etc) applications. RC5 is a highly efficient and flexible cryptographic algorithm, for which many parameters (key size, block size, number of rounds) can be adjusted to tradeoff security strength with power consumption and computational overhead. Thus RC5 with suitable parameters may perform well for WBSN applications with different data size. Implementations for WBSN nodes are in evolving stage now. This paper further presents a brief survey of various implementations of RC5 algorithm to convince its suitability for WBSN.

[1]  Kyung Sup Kwak,et al.  Towards security issues and solutions in Wireless Body Area Networks , 2010, INC2010: 6th International Conference on Networked Computing.

[2]  Chua-Chin Wang,et al.  Low power RC5 cipher for ZigBee portable biomedical systems , 2011, 2011 IEEE International Conference on Consumer Electronics (ICCE).

[3]  O. Elkeelany Design and Analysis of Various Models of RC 5-192 Embedded Information Security Algorithm , 2008 .

[4]  Lauri Sydanheimo,et al.  RC5-based security in wireless sensor networks: utilization and performance , 2010 .

[5]  Min Chen,et al.  Energy Efficient Security Algorithm for Power Grid Wide Area Monitoring System , 2011, IEEE Transactions on Smart Grid.

[6]  Xinghuo Yu,et al.  Real-Time ECG Monitoring System Based on FPGA , 2007, IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society.

[7]  Frank Mueller,et al.  Analyzing and modeling encryption overhead for sensor network nodes , 2003, WSNA '03.

[8]  K. M. S. Soyjaudah,et al.  Analytical Comparison of Cryptographic Techniques for Resource-constrained Wireless Security , 2009, Int. J. Netw. Secur..

[9]  Odysseas G. Koufopavlou,et al.  Area optimized architecture and VLSI implementation of RC5 encryption algorithm , 2003, 10th IEEE International Conference on Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003.

[10]  Omar S. Elkeelany,et al.  Performance Comparisons, Design, and Implementation of RC5 Symmetric Encryption Core using Reconfigurable Hardware , 2008, J. Comput..

[11]  Sasikanth Avancha,et al.  Security for Sensor Networks , 2004 .

[12]  Abdoul Rjoub,et al.  A Low-Energy Security Algorithm for Exchanging Information in Wireless Sensor Networks , 2009 .

[13]  Ronald L. Rivest,et al.  The RC5 Encryption Algorithm , 1994, FSE.

[14]  Yee Wei Law,et al.  Benchmarking Block Ciphers for Wireless Sensor Networks (Extended Abstract) , 2004 .

[15]  Ming Li,et al.  Data security and privacy in wireless body area networks , 2010, IEEE Wireless Communications.

[16]  Kyung Sup Kwak,et al.  A study on proposed IEEE 802.15 WBAN MAC protocols , 2009, 2009 9th International Symposium on Communications and Information Technology.