Design and Implementation of New Lightweight Encryption Technique

Lightweight cryptography is an interesting field which provides security, higher throughput, low power consumption and compactness. Several algorithms like PRESENT, CLEFIA, SEA, TEA, Hummingbird and KANTAN have made the mark to be used as lightweight algorithms. In this paper, we present the design of hybrid lightweight encryption system based on bit permutation instruction GRP (group operation) and the S-box of PRESENT. A new hybrid system is proposed that provides more compact results in terms of both memory space and gate equivalents. This design has resulted in most compact implementation in terms of memory requirement. By using the S-box of PRESENT, it helps in resistant to several differential attacks and also GRP properties are very helpful to attain the compact implementation in hardware. The design is coded using VHDL language and implemented into the Spartan 6 FPGAs.