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相关概念视频

Cluster Sampling Method01:20

Cluster Sampling Method

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Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
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相关实验视频

Updated: Sep 16, 2025

Large-scale Reconstructions and Independent, Unbiased Clustering Based on Morphological Metrics to Classify Neurons in Selective Populations
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改进了对CTR DRBG的侧通道攻击,使用集群算法.

Jaeseung Han1, Dong-Guk Han1

  • 1Department of Financial Information Security, Kookmin University, Seoul 02707, Republic of Korea.

Sensors (Basel, Switzerland)
|July 12, 2025
PubMed
概括
此摘要是机器生成的。

这项研究增强了对物联网设备中使用的确定性随机位生成器 (DRBG) 的侧通道攻击. 通过结合集群,改进的攻击提高了成功率,并在杂的环境中有效运行,构成更大的安全威胁.

关键词:
在 AES AES AES 中.DRBG DRBG 的意思是什么区块密码是一个区块密码.计数模式 计数模式 计数模式侧通道攻击侧通道攻击

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科学领域:

  • 密码学和信息安全信息安全
  • 嵌入式系统安全 嵌入式系统安全
  • 侧通道分析侧通道分析

背景情况:

  • 确定性随机位生成器 (DRBG) 对物联网设备的加密安全至关重要.
  • 对DRBG的攻击可以危及密钥等敏感信息,威胁整个系统.
  • 迈耶的2020侧通道攻击 (SCA) 针对使用功耗分析的NIST标准AES CTR DRBG.

研究的目的:

  • 为了增强迈耶的SCA方法对抗AES CTR DRBG.
  • 为了提高攻击的成功率和信息恢复.
  • 为了在噪音较高的环境中进行攻击.

主要方法:

  • 拟议的方法将一个集群算法集成到Meyer的四阶段SCA中.
  • 在第一阶段应用聚类来提高成功率和信息获取.
  • 集群结果被用来提高后续攻击阶段的准确性.

主要成果:

  • 与迈耶的攻击相比,增强攻击在第一阶段表现出更高的成功率,涉及所有噪音级别.
  • 在初始阶段,在高噪音水平下观察到高达50%的性能改善.
  • 攻击的第3步和第4步显示,与原始方法相比,平均性能提高了18.5%.

结论:

  • 拟议的集群增强的SCA显著提高了对AES CTR DRBGs攻击的有效性.
  • 增强的攻击更适应噪音,扩大了易受攻击的设备和环境的范围.
  • 这项研究强调了使用CTR DRBGs的物联网设备的安全风险增加,以应对复杂的侧通道攻击.