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在标准模型中采用区块链增强的无证书签名方案
Xiaodong Yang1, Haoqi Wen1, Lei Liu2
1College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China.
Mathematical biosciences and engineering : MBE
|July 28, 2023
概括
本研究分析了Shim的无证书签名 (CLS) 方案,发现它易受公钥替代攻击的影响. 提出了一个新的基于区块链的CLS方案,增强针对各种攻击的安全性,而不会影响性能.
科学领域:
- 计算机科学 计算机科学
- 网络安全 网络安全
- 密码学 密码学 密码学 密码学
背景情况:
- 物联网 (IoT) 正在将社会转变为智能化.
- 无证书签名 (CLS) 对物联网安全至关重要,但现有的方案通常依赖于理想化的安全假设.
- 希姆提出了一个没有随机预言的CLS方案,声称在标准模型中是安全的.
研究的目的:
- 为了加密分析Shim的CLS计划并确定其安全漏洞.
- 提出一种基于区块链的新,安全和高效的CLS方案.
- 在现实的物联网环境中解决现有的CLS方案的局限性.
主要方法:
- 对Shim的CLS方案进行密码分析,以评估其对特定攻击的抵抗力.
- 开发一种利用区块链技术的新CLS方案.
- 针对I型和II型攻击者的拟议方案的安全分析.
- 计算和通信开销的性能评估.
主要成果:
- 发现Shim的CLS方案容易受到Type I攻击者对公钥替换攻击的攻击.
- 拟议的基于区块链的CLS方案有效地抵御了I型和II型攻击者.
- 新方案防止了对公共参数的签名伪造.
- 拟议的方案保持了与Shim方案相比较的计算和通信性能.
结论:
- 希姆的CLS方案存在安全漏洞,需要解决实际的物联网应用程序.
- 拟议的基于区块链的CLS计划提供了增强的安全性和稳定性.
- 这个新方案为物联网环境中的无证书签名提供了更安全,更可靠的解决方案.
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