Lightweight Cipher Using GRP Bit Permutation and Tweak
Internet of Things (IoT) is a network of sensors which are able to connect and exchange data. IoT uses RPL (Routing Protocol for Low power and lossy network) as a routing protocol. This protocol uses Rank mechanism where each node is given a rank based on their proximity from the root node. But malicious nodes can advertise fake rank information to be a part of the graph and get sensitive information.
RPL uses AES/CCMP as a security mechanism to send messages securely but as AES/CCMP is designed for non-constrained environment and IoT is a network of lightweight constrained devices there is a need for lightweight cryptographic algorithms. PRESENT is the best lightweight encryption protocol. In this paper we have modified the P-Box of PRESENT using GRP bit permutation operations and also incorporated tweak structure to ensure security. Our algorithm shows better results in terms of execution time when compared with existing PRESENT protocol.
KeywordsPRESENT GRP AES Tweak
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