SM4-XTS Side Channel Analysis Method Based on Multi-stage CPA

ZHAO Yiqiang; YAN Mingkai; ZHANG Qizhi; GAO Ya; XIA Xianzhao; GUO Yang; WANG Yaohua; HE Jiaji

doi:10.11999/JEIT240183

Volume 46 Issue 11

Nov. 2024

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Article Navigation > Journal of Electronics & Information Technology > 2024 > 46(11): 4161-4169

ZHAO Yiqiang, YAN Mingkai, ZHANG Qizhi, GAO Ya, XIA Xianzhao, GUO Yang, WANG Yaohua, HE Jiaji. SM4-XTS Side Channel Analysis Method Based on Multi-stage CPA[J]. Journal of Electronics & Information Technology, 2024, 46(11): 4161-4169. doi: 10.11999/JEIT240183

Citation:

ZHAO Yiqiang, YAN Mingkai, ZHANG Qizhi, GAO Ya, XIA Xianzhao, GUO Yang, WANG Yaohua, HE Jiaji. SM4-XTS Side Channel Analysis Method Based on Multi-stage CPA[J]. Journal of Electronics & Information Technology, 2024, 46(11): 4161-4169. doi: 10.11999/JEIT240183

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SM4-XTS Side Channel Analysis Method Based on Multi-stage CPA

doi: 10.11999/JEIT240183

ZHAO Yiqiang^{1, 2},
YAN Mingkai^{1, 2},
ZHANG Qizhi^{1, 2},
GAO Ya^{1, 2},
XIA Xianzhao³,
GUO Yang⁴,
WANG Yaohua⁴,
HE Jiaji^{1, 2
,
,}

1.
School of Microelectronics, Tianjin University, Tianjin 300072, China
2.
Tianjin Key Laboratory of Imaging and Perception Microelectronics Technology, Tianjin 300072, China
3.
CATARC Technology Co., Ltd., Shenzhen 518118, China
4.
School of Computer Science, National University of Defense Technology, Changsha 410073, China

Funds: The National Key Research and Development Plan (2021YFB3100903)

Received Date: 2024-03-20
Rev Recd Date: 2024-09-10

Available Online: 2024-09-28

Publish Date: 2024-11-01

Abstract

Abstract

The XEX-based Tweaked-codebook mode with ciphertext Stealing (XTS) is widely used in storage encryption. With the emergence and application of big data computing and novel side-channel analysis methods, the security of the XTS encryption mode has become a matter of concern. Recent studies have attempted side-channel analysis on the XTS mode, aiming to narrow down the key search space by identifying partial keys and tweak values, but a comprehensive analysis of the XTS mode system has not been achieved. In this paper, a side-channel analysis technique targeting the SM4-XTS circuit is proposed. By combining traditional Correlation Power Analysis (CPA) with a multi-stage fusion CPA technique, the technique addresses the binary number shifting issue caused by the iterative modulation multiplication of the tweak values, enabling precise extraction of both the tweak values and keys. To validate the effectiveness of this analytical technique, an SM4-XTS encryption module is implemented on an FPGA to simulate real-world encryption memory scenarios. Experimental results demonstrate that the technique can successfully extract partial tweak values and keys from the target encryption circuit using only 10 000 power traces.
- SM4-XTS,
- Side-channel Analysis,
- Block ciphers,
- Correlation Power Analysis (CPA)

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References(17)

References

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