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Compact FPGA Implementation of 32-bits AES Algorithm Using Block RAM

By Chi-Wu Huang

Abstract

[[abstract]]Hardware implementation of advanced encryption standard (AES) algorithm has been in intensive discussion since its first publication by National Institute of Standards and Technology (NIST) in 2000, especially in high throughput over 1 Giga bits per second (Gbps). However, the studies of low area, low power and low cost implementations, which usually have throughput less than 1 Gbps and use the datapath less than 32-bit, have been appearing recently in ASIC as well as in FPGA for wireless communication and embedded hardware application. This paper proposes a 32-bit datapath implementation in small Xilinx FPGA Chip (Spartan-3 XC3S200). It uses 148 slice, 11 block RAMs (BRAMs) and achieves the data stream of 647 Mega bits per second ( Mbps) at 287 MHz working frequency. It obtains 3.4 times improvement to the best known similar design in terms of ratio throughput per area (Throughput/Area), and 20% smaller in slice area.

Topics: [[classification]]53
Year: 2013
OAI identifier: oai:ir.lib.ntnu.edu.tw:309250000Q/126349
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