Highly-secure scattering-media-based key storage

IF 3.5 2区 工程技术 Q2 OPTICS Optics and Lasers in Engineering Pub Date : 2024-11-04 DOI:10.1016/j.optlaseng.2024.108613
Zaoxin Chen , Juncheng Chen , Jiayu Chen , Jiapeng Cai , Tairan Huang , Dajiang Lu , Xiang Peng , Wenqi He
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Abstract

Since all the secrets are buried in the secret key, securely storing the secret keys plays a significant role in our modern information society. To avoid the risk of illegally duplicating the stored secret keys, Pappu et al. (Science 297, 2002) proposed an alternative strategy to authenticate a legal user, but not encrypt anything, by introducing a high security-level physical identity token which is well-known as the Physical Unclonable Function (PUF). However, it is incapable of keeping the already existing digital keys away from being duplicated. Here, by modifying the Wavefront Shaping (WS) technique, we present an idea to build a mapping relationship between any easy-to-duplicate digital key and an unclonable scattering media (e.g. ground glass) that is full of uncountable microparticles, and we named it the Unclonable Equivalent Key (UEK). Theoretical analysis and optical experiments were carried out to demonstrate its feasibility, especially its secure and robust performance assisted by an easy-to-implement alignment strategy.
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基于散射介质的高安全性密钥存储
由于所有的秘密都埋藏在秘钥中,因此安全地存储秘钥在现代信息社会中发挥着重要作用。为了避免非法复制已存储密钥的风险,Pappu 等人(Science 297,2002)提出了一种替代策略,通过引入一种高安全级别的物理身份令牌(即众所周知的物理不可解密函数(PUF))来验证合法用户的身份,但不加密任何内容。然而,它无法防止已有的数字密钥被复制。在这里,我们通过修改波前整形(WS)技术,提出了一种在任何易于复制的数字密钥和充满不可计数微粒子的不可克隆散射介质(如磨碎的玻璃)之间建立映射关系的想法,并将其命名为不可克隆等价密钥(UEK)。我们进行了理论分析和光学实验,以证明其可行性,特别是在易于实施的对齐策略的辅助下,其安全和稳健的性能。
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来源期刊
Optics and Lasers in Engineering
Optics and Lasers in Engineering 工程技术-光学
CiteScore
8.90
自引率
8.70%
发文量
384
审稿时长
42 days
期刊介绍: Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques
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