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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
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基于LWE/LWR的模式的模板攻击,循环消息旋转
Yajing Chang1, Yingjian Yan1, Chunsheng Zhu1
1College of Cryptography Engineering, Information Engineering University, Zhengzhou 450001, China.
Entropy (Basel, Switzerland)
|July 8, 2023
概括
研究人员开发了一种新的方法来恢复秘密消息和共享密钥,这些密钥来自基于晶格的后量子密码学,如Crystal-Kyber. 这种高效的侧通道攻击需要更少的动力痕迹,并提高了成功率,特别是在杂的条件下.
科学领域:
- 密码学 密码学 密码学 密码学
- 计算机安全 计算机安全
- 信息理论 信息理论
背景情况:
- 基于格子的后量子加密技术 (PQC) 对未来的安全通信至关重要.
- 侧通道攻击对PQC实现构成重大威胁.
- 标准化工作强调了对PQC进行强有力的安全分析的必要性.
研究的目的:
- 提出一种新的消息恢复方法,针对基于LWE/LWR的PQC.
- 提高对PQC的侧通道攻击的效率和成功率.
- 为了证明Crystal-Kyber对此次攻击的脆弱性.
主要方法:
- 开发了一种基于解封阶段泄漏的消息恢复技术.
- 利用模板攻击和循环消息旋转进行密码文本操纵.
- 使用哈明重量模型为中间状态构建模板.
- 在加密操作期间分析电源泄漏.
主要成果:
- 从Crystal-Kyber成功地恢复了秘密消息和共享密钥.
- 减少了模板创建和攻击所需的功率轨迹的数量.
- 在低信号噪音比率 (SNR) 下显著增加了攻击成功率.
- 在足够的SNR的情况下,实现了高达99.6%的消息恢复成功率.
结论:
- 拟议的方法提供了一个更高效和有效的侧通道攻击基于格子的PQC.
- 这些发现强调了在PQC设计中考虑侧通道漏洞的重要性.
- 需要进一步的研究来开发针对这种基于泄漏的攻击的对策.
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