高技术通讯（英文版）2008，Vol.14Issue(2)：154-159,6.
An asynchronous pipeline architecture for the low-power AES S-box
An asynchronous pipeline architecture for the low-power AES S-box
摘要
Abstract
To obtain a low-power and compact implementation of the advanced encryption standard (AES) S-box, an asynchronous pipeline architecture over composite field arithmetic was proposed in this paper. In the presented S-box, some improvements were made as follows. (1) Level-sensitive latches were inserted in data path to block the propagation of the dynamic hazards, which lowered the power of data path circuit. (2) Operations of latches were controlled by latch controllers based on presented asynchronous sequence element: LC-element, which utilized static asymmetric C-element to construct a simple and power-efficient circuit structure. (3) Implementation of the data path circuit was a semi-custom standard-cell circuit on 0.25μm complementary mental oxide semiconductor (CMOS) process; and the full-custom design methodology was adopted in the handshake circuit design. Experimental results show that the resulting circuit achieves nearly 46% improvement with moderate area penalty (11.7%) compared with the related composite field S-box in power performance. The presented S-box circuit can be a hardware intelligent property (IP) embedded in the targeted systems such as wireless sensor networks (WSN), smartcards and radio frequency identification (RFID).关键词
advanced encryption standard (AES)/S-box/asynchronous pipeline/composite fieldKey words
advanced encryption standard (AES)/S-box/asynchronous pipeline/composite field分类
建筑与水利引用本文复制引用
Zeng Yonghong,Zou Xuecheng,Liu Zhenglin..An asynchronous pipeline architecture for the low-power AES S-box[J].高技术通讯（英文版）,2008,14(2):154-159,6.基金项目
Supported by the National High Technology Research and Development Programme of China (Grant No. 2006AA01Z226) and by the Project (Grant No. 2006Z001B) Supported by the Scientific Research Foundation of Huazhong University of Science and Technology. （Grant No. 2006AA01Z226）
