Scholarlink

<p>Hybrid protocols that combine Post-Quantum (PQ) and traditional primitives, allowing flexible switching based on the threat level, provide optimal trade-offs between efficiency and security. The recently published HM-AKA scheme introduced a basic framework for this setup, but it fails to provide security against impersonation attacks by a semi-trusted TTP in some of its proposed modes. This vulnerability arises due to the asymmetric behavior of PQ primitives compared to traditional public-key primitives. We identify this threat and propose an enhanced version, HM-AKA+, that maintains the framework’s flexibility while ensuring security.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

HM-AKA+: Protecting against a semi-trusted third party with Hybrid Crypto

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月10日

查看全文
  • Jorge Munilla,
  • An Braeken

摘要

Hybrid protocols that combine Post-Quantum (PQ) and traditional primitives, allowing flexible switching based on the threat level, provide optimal trade-offs between efficiency and security. The recently published HM-AKA scheme introduced a basic framework for this setup, but it fails to provide security against impersonation attacks by a semi-trusted TTP in some of its proposed modes. This vulnerability arises due to the asymmetric behavior of PQ primitives compared to traditional public-key primitives. We identify this threat and propose an enhanced version, HM-AKA+, that maintains the framework’s flexibility while ensuring security.