论文标题
融合秘密通信的键：朝着信息理论安全性
Fusing Keys for Secret Communications: Towards Information-Theoretic Security
论文作者
论文摘要
现代密码学对于执行各种安全操作（例如加密，身份验证和签名）的通信和信息安全至关重要。但是，钥匙的暴露可能性对几乎所有现代密码学构成了巨大威胁。本文提出了一个钥匙符合的框架，该框架可以通过融合多个不完美的密钥来具有很高的弹性启用。该方案的正确性通过玩具模型进行了严格验证，该模型足以抽象物理层密钥生成（PLKG）机制。分析和结果表明，所提出的方案可以大大降低秘密中断概率，因此甚至具有高暴露概率的关键来源实际上可能对实际的秘密交流有益。我们的框架为通过整合各种关键来源（例如物理层密钥生成，基于晶格的加密术和量子加密）来实现信息理论安全铺平了道路。
Modern cryptography is essential to communication and information security for performing all kinds of security actions, such as encryption, authentication, and signature. However, the exposure possibility of keys poses a great threat to almost all modern cryptography. This article proposes a key-fusing framework, which enables a high resilience to key exposure by fusing multiple imperfect keys. The correctness of the scheme is strictly verified through a toy model that is general enough to abstract the physical-layer key generation (PLKG) mechanisms. Analysis and results demonstrate that the proposed scheme can dramatically reduce secret outage probability, so that key sources with even high exposure probability can be practically beneficial for actual secret communication. Our framework paves the way for achieving information-theoretic security by integrating various key sources, such as physical layer key generation, lattice-based cryptography, and quantum cryptography.
