相关实验视频
Updated: Jan 9, 2026

06:38
Pattern-based Search of Epigenomic Data Using GeNemo
Published on: October 8, 2017
5.4K
KmerCrypt:使用同态加密进行私人k-mer搜索.
Kimonas Provatas1, Ioannis Mouratidis1, Ilias Georgakopoulos-Soares1
1Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Dell Paediatric Research Institute, 1400 Barbara Jordan Blvd, Austin, TX 78723, United States.
Briefings in bioinformatics
|December 8, 2025
概括
这项研究引入了一种新的同型加密协议,用于安全的基因组数据分析. 它允许对存储在不可信任服务器上的加密数据进行私人k-mer搜索,确保数据隐私.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 密码学 密码学 密码学 密码学
背景情况:
- 基因组数据分析需要将存储和计算外包给第三方服务器.
- 这种外包对敏感的人类基因组数据提出了重大隐私挑战.
- 基于K-mer的分析对于各种应用至关重要,但需要仔细的伦理和技术考虑.
研究的目的:
- 开发一个安全的协议,用于对加密的基因组数据进行私人k-mer搜索.
- 让客户能够在不受信任的服务器上存储和查询他们的基因组数据,而不会影响隐私.
- 为临床和研究环境中对机密基因组数据分析提供实用解决方案.
主要方法:
- 一个使用同态加密进行安全基因组数据处理的新型协议.
- 在上传到不可信任的服务器之前,对基因组的客户端加密.
- 服务器端对加密数据 (密码文本) 的计算,用于k-mer搜索.
- 开发KmerCrypt,这是一个实现私人k-mer搜索协议的工具包.
主要成果:
- 该协议允许对完全加密的基因组数据进行私人k-mer搜索.
- 服务器永远不会访问客户端的非加密基因组或k-mer查询内容.
- 加密的结果返回客户端进行解密,确保数据所有者控制.
- 该系统支持精确的k-mer搜索和位置重量矩阵搜索.
结论:
- 同型加密为外包基因组数据存储和分析提供了一个安全的框架.
- 提出的协议将云服务器转化为加密的客户端所拥有的基因组数据的安全计算系统.
- KmerCrypt为查询加密的基因组数据集提供了一种高效和私有解决方案,解决了关键的隐私问题.
相关概念视频
¹H NMR Chemical Shift Equivalence: Homotopic and Heterotopic Protons
4.0K
Protons in identical electronic environments within a molecule are chemically equivalent and have the same chemical shift. The replacement test is a useful tool to identify chemical equivalence and predict NMR spectra. A substituent replaces each of the protons being examined and the resulting molecules are compared. If the same molecule is obtained, the protons are equivalent or homotopic. Replacement of any hydrogens in ethane by chlorine yields chloroethane because all six protons are...
4.0K
Maxam-Gilbert Sequencing
12.5K
In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
Challenges of the Maxam-Gilbert Method
The...
12.5K
Conservation of Protein Domains Over Different Proteins
14.0K
Protein domains are small structurally independent units that are part of a single amino acid chain. Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
14.0K
Routh-Hurwitz Criterion I
510
Consider an electrical power grid, where stability is essential to prevent blackouts. The Routh-Hurwitz criterion is a valuable tool for assessing system stability under varying load conditions or faults. By analyzing the closed-loop transfer function, the Routh-Hurwitz criterion helps determine whether the system remains stable.
To apply the Routh-Hurwitz criterion, a Routh table is constructed. The table's rows are labeled with powers of the complex frequency variable s, starting from the...
To apply the Routh-Hurwitz criterion, a Routh table is constructed. The table's rows are labeled with powers of the complex frequency variable s, starting from the...
510
Routh-Hurwitz Criterion II
906
In the application of the Routh-Hurwitz criterion, two specific scenarios can arise that complicate stability analysis.
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
906
2D NMR: Overview of Homonuclear Correlation Techniques
596
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
COSY90 is the standard two-dimensional (2D) COSY experiment that...
596

