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arXiv 2007.09327cs.CRcs.LGcs.MA
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基于抽象多Agent交互的量子安全认证和密钥协商

Towards Quantum-Secure Authentication and Key Agreement via Abstract Multi-Agent Interaction

University of Edinburgh(爱丁堡大学)

Ibrahim H. Ahmed, Josiah P. Hanna, Elliot Fosong, Stefano V. Albrecht

摘要:

目前基于公钥密码学的认证和密钥协商方法容易受到量子计算的攻击。我们提出了一种新的方法的基础上,人工智能的研究,其中通信方被视为自主智能体反复使用自己的私人决策模型进行交互。认证和密钥协商是根据代理在交互过程中观察到的行为来决定的。这种方法的安全性取决于从有限的观察中对交互代理的决策进行建模的难度,我们推测这个问题对于量子计算来说也很难。我们发布PyAMI,一个原型认证和密钥协商系统的基础上提出的方法。我们经验验证我们的方法,同时检测不同类型的对抗攻击的合法用户进行身份验证。最后,我们将展示如何使用强化学习技术来训练服务器模型,从而有效地探测客户端的决策,以实现更有效的样本认证。

英文摘要:

Current methods for authentication and key agreement based on public-key cryptography are vulnerable to quantum computing. We propose a novel approach based on artificial intelligence research in which communicating parties are viewed as autonomous agents which interact repeatedly using their private decision models. Authentication and key agreement are decided based on the agents' observed behaviors during the interaction. The security of this approach rests upon the difficulty of modeling the decisions of interacting agents from limited observations, a problem which we conjecture is also hard for quantum computing. We release PyAMI, a prototype authentication and key agreement system based on the proposed method. We empirically validate our method for authenticating legitimate users while detecting different types of adversarial attacks. Finally, we show how reinforcement learning techniques can be used to train server models which effectively probe a client's decisions to achieve more sample-efficient authentication.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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