Quantum secret sharing by using Fourier transform on orbital angular momentum. (1st March 2019)

• Record Type: Journal Article
• Authors: Qin, Huawang; Tso, Raylin; Dai, Yuewei
• Is Part Of: IET information security. Volume 13:Number 2(2019)
• Page Start: 104
• Page End: 108
• Publication Date: 2019-03-01
• Subjects: Fourier transforms -- encoding -- quantum cryptography -- angular momentum -- private key cryptography; orbital angular momentum -- single‐particle measurements -- two‐dimensional schemes -- entangled particles -- quantum secret sharing scheme -- quantum Fourier transform -- angular position -- private key encoding -- ANG basis -- OAM basis -- security enhancement; Computer security -- Periodicals; Cryptography -- Periodicals; Computer networks -- Security measures -- Periodicals; Database security -- Periodicals; 005.8
• DOI: 10.1049/iet-ifs.2018.5149
• Languages: English
• ISSNs: 1751-8709

Abstract

Abstract : A quantum secret sharing scheme based on orbital angular momentum (OAM) is proposed. The dealer generates single particles in OAM basis or angular position (ANG) basis randomly. The participants encode their private keys into the particles through performing quantum Fourier transforms. Then the dealer can use the single‐particle measurements to get the shared secret. In the authors' scheme, the secret is protected by the distinguishability of OAM basis and ANG basis. Compared to the traditional two‐dimensional schemes, the authors' scheme can use the higher dimension of OAM to increase the detecting rate of eavesdropping, and enhance the security in practice. Besides, only the single particles are needed in their scheme. Compared to the schemes based on entangled particles, the authors' scheme will be more practical with the present technology.