SMS4分组密码的差分功率分析攻击

2008 4th IEEE International Conference on Circuits and Systems for Communications Pub Date : 2008-05-26 DOI:10.1109/ICCSC.2008.136

Xuefei Bai, Li Guo, Tie Li

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引用次数: 11

摘要

SMS4是WAPI标准中用于保护WLAN数据包的128位分组密码。本文提出了一种针对轮密钥每个字节的差分功率分析攻击方法。通过这种攻击，可以获得SMS4最后4轮的轮密钥，进而找到128位的加密密钥。仿真实验结果表明，该方法对SMS4密码的攻击是有效和实用的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Differential Power Analysis Attack on SMS4 Block Cipher

SMS4 is a 128-bit block cipher used in the WAPI standard for protecting data packets in WLAN. In this paper, a differential power analysis attack method on every byte of round keys is presented. Through this attack, the round keys of the last four rounds of SMS4 can be obtained, and then the 128- bit encryption key can be found out. The results of simulation experiments indicate that this attack is effective and practical on the SMS4 cipher.

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2008 4th IEEE International Conference on Circuits and Systems for Communications

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