Pipelined Architectures of LILLIPUT Block Cipher for RFID Logistic Applications

Lightweight cryptography is an exciting field which hits the perfect balance between safety, higher performance, low power consumption, and compactness. Many compact algorithms such as PRESENT, HIGHT, LILLIPUT, KLEIN, KATAN, SFN, and PICCOLO have made the mark in recent years that can be used as lightweight cryptosystems. The reprogrammable devices are highly attractive solutions for encryption algorithm in hardware implementation. A strong focus is placed on high-throughput implementations, which are required to support security for logistics and tracking applications. In this paper, two pipelined architectures are designed for achieving high throughput. Among them, sub-pipelined implementation achieves a high throughput of 684.06 Mbps and 654.20 Mbps on xc5vlx50t-3ff1136 and xc4vlx25-12ff668 devices, respectively. All results are simulated and verified for different devices of Xilinx in Spartan & Virtex families.