阶层安全密钥分配方案 阶层安全密钥分配方案
Baris Celiktas1, Ibrahim Çelikbilek2, Sueda Guzey2
1Isik University, Computer Engineering Department, Istanbul, Türkiye.
PloS one
|February 18, 2026
概括
本研究介绍了用于访问控制的轻量级层次密钥分配机制,增强数字系统的安全性. 这种新的方案提供了高效的密钥管理和强大的防御攻击,优于现有的后量子解决方案.
科学领域:
- 计算机科学 计算机科学
- 密码学 密码学 密码学
- 信息安全 信息安全
背景情况:
- 层次化的访问控制对于管理数字资源至关重要.
- 现有的密钥分配机制经常面临可扩展性,计算开销和安全漏洞的挑战.
- 在复杂的访问结构中,需要有效和安全的密钥管理.
研究的目的:
- 为访问控制提出一种新的等级密钥分配机制.
- 设计一个计算轻量化和高效的方案,优化结构化数字环境.
- 确保强大的安全性,包括抵御勾结和特权升级的弹性,并且在没有可信赖的第三方的情况下安全地重新购买.
主要方法:
- 利用直角投影和分发组基来进行关键分配.
- 实施一个层次结构,使得父母对子的密钥导出,同时防止反向访问.
- 进行分析复杂性评估和与后量子方案进行比较分析.
主要成果:
- 关键导出最多需要O(n^2) 运算,每位用户使用紧的关键材料 (远远少于二-5).
- 存储需求与组数的数量线性扩展,确保轻量级的大层次结构.
- 选择性回收表明通信开销较低,只影响修改组的后代.
结论:
- 拟议的机制提供了一个可扩展,轻量级和安全的解决方案,用于在大层次结构中的访问控制.
- 它的效率和强大的安全特性使其适合在数字环境中实际部署.
- 该方案在存储和密钥管理效率方面比现有的后量子解决方案提供了显著的改善.
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