FPGA implementation of high speed XTS-AES for data storage devices

Mohamed Elmoghany, Mohamed Diab, Moustafa Kassem, Mustafa Khairallah, Omar El Shahat, Wael Sharkasy

Abstract: This paper presents a novel architecture of XTS-AES mode for data storage devices. An enhanced fully pipelined and area efficient XTS-AES mode design using one AES core is proposed. We propose a design of XTS module to handle the data blocks to be encrypted using a single AES core. Considering previous work in XTS, few designs have been published that use a single AES core, and few efforts have been targeted toward their optimization. This paper describes hardware implementation of XTS-AES design with a throughput of 19.56 Gbps and a maximum achievable frequency of 153.84 MHz. This design is written in Verilog HDL and verified on Altera Cyclone II FPGA.