论文标题
一个安全的身份验证框架，以确保元中的化身的可追溯性
A Secure Authentication Framework to Guarantee the Traceability of Avatars in Metaverse
论文作者
论文摘要
Metaverse是一个与物理世界平行的巨大虚拟环境，在该环境世界中，用户享受各种服务的服务。为了建立一个安全的生活栖息地，至关重要的是要确保通过虚拟空间中的化身在物理世界中跟踪恶意玩家的虚拟物理可追溯性。在本文中，我们提出了一个基于变色龙签名和基于生物特征识别的身份验证的两因素身份验证框架。首先，为了在虚拟空间中伪装，我们提出了变色龙碰撞签名算法，以实现阿凡达虚拟身份的可验证性。其次，面对物理世界的假冒，我们基于玩家的生物识别模板和变色龙键来构建一个化身的身份模型，以实现阿凡达物理身份的验证性。最后，我们根据阿凡达（Avatar）的身份模型设计了两个分散的身份验证协议，以确保阿凡达（Avatar）虚拟和物理身份的一致性。安全分析表明，所提出的身份验证框架保证了阿凡达（Avatar）身份的一致性和可追溯性。仿真实验表明，该框架不仅完成了化身之间的分散身份验证，还可以实现虚拟物理跟踪。
Metaverse is a vast virtual environment parallel to the physical world in which users enjoy a variety of services acting as an avatar. To build a secure living habitat, it's vital to ensure the virtual-physical traceability that tracking a malicious player in the physical world via his avatars in virtual space. In this paper, we propose a two-factor authentication framework based on chameleon signature and biometric-based authentication. First, aiming at disguise in virtual space, we propose a chameleon collision signature algorithm to achieve the verifiability of the avatar's virtual identity. Second, facing at impersonation in physical world, we construct an avatar's identity model based on the player's biometric template and the chameleon key to realize the verifiability of the avatar's physical identity. Finally, we design two decentralized authentication protocols based on the avatar's identity model to ensure the consistency of the avatar's virtual and physical identities. Security analysis indicates that the proposed authentication framework guarantees the consistency and traceability of avatar's identity. Simulation experiments show that the framework not only completes the decentralized authentication between avatars but also achieves the virtual-physical tracking.
