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http://dx.doi.org/10.7471/ikeee.2021.25.1.42

Secure private key exchange method based on optical interferometry using biometric finger print  

Jeon, Seok-Hee (Dept. of Electronics Engineering, Incheon National University)
Gil, Sang-Keun (Dept. of Electronics Engineering, The University of Suwon)
Publication Information
Journal of IKEEE / v.25, no.1, 2021 , pp. 42-46 More about this Journal
Abstract
A novel key exchange cryptographic method utilizing biometric finger print as a user's private key is proposed. Each unknown users' finger print is encrypted by optical phase-shifting interferometry principle and is changed into two ciphers, which are exchanged with the other party over a public communication network for secret key sharing. The transmitted ciphers generate a complex hologram, which is used to calculate a shared secret key for each user. The proposed method provides high security when applied to a secret key sharing encryption system.
Keywords
Security; Encryption; Key exchange; Optical interferometry; Fourier optics;
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