A Novel Symmetric Key Encryption Algorithm Based on RC5 in Wireless Sensor Network
Suraj Kumar Khuraijam, K. Radhika · 2013
Abstract- In recent years there has been growing interest in wireless sensor network due to its wide range of potential applications.They are used in military area, industrial process monitoring and control, environment and habitat monitoring,health care.The sensor node has limited computational power and memory size affecting the amount of data that can be stored in individual sensor nodes. So the protocol use in sensors application should be simple and lightweight. In order to overcome the limitation and to provide security these theses attain to this problem. A single master key or storing each key in node is not feasible to use in wireless sensor network.LU matrix scheme of key pre distribution will be used for key distribution among node.The outcome of key pre-distribution technique by LU matrix provides node to node mutual authentication and guarantees to find a common keys between any two sensor nodes in the sensor network. 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. After distribution of key the information is send encrypted by RC5. Keywords- Wireless sensor network, key predistribution LU matrix, security, RC5 algorithm I.