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A Reprogramming service should be efficient, reliable and secured in Wireless sensor network. Wireless reprogramming for wireless sensor network emphasize over the process of changing or improving the functionality of simulation or existing code. For challenging and on demand security purpose, secure and distributed routing protocols such as SDRP and ISDRP were developed. This paper reviews and compares the propagation delay for two reprogramming protocols, SDRP and ISDRP, which based on hierarchy of energies in network. Both are based on identity-based cryptography. But in the improved protocol the keys are distributed to the network as per the sorting and communication capabilities to improve the broadcast or communication nature of the network. Moreover, ISDRP demonstrates the security concepts, which deals over the key encryption properties using heap sort algorithm and the confidentiality parameter is enhanced by changing the private key values after certain interval of time for cluster head in respect to different public keys. The ISDRP shows high efficiency rate clearly with the throughput and propagation results by implementation in practice over SRDP.

Review and Performance Comparison of Distributed Wireless Reprogramming Protocols: SDRP and ISDRP