A High Throughput And Speed Architecture of Lightweight Cipher LEA

A high-speed cryptography algorithm is the necessity of today's world to communicate between two resource-constrained tools. We have proposed a 128-bit block size and 256-bit key size LEA cipher for high speed and throughput purpose. High speed is an essential requirement with the secure transmission of information. Pipelining is the best way to achieve these requirements with higher throughput. The implementation results have shown that this method has a higher capability of speed and throughput as compared to previous ciphers. LEA has security against all existing cipher attacks and compatible with both hardware and software. Proposed work is 73.7% and 62.85% improved version of compared paper for respectively throughput and speed.