Multiuser optical information authentication using photon counting in spiral phase transform domain

Ravi Kumar, Chenggen Quan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In the present time, the substantial advances in communication technology have prompted many challenges including secure transmission of sensitive information. Optical techniques have also been studied extensively for information security and validation. In this paper, we present a new optical information authentication techniques using photon counting in spiral phase transform (SPT) domain. SPT is used for the optical propagation. For SPT, a modified spiral phase function is utilized which defines the order of the transform. In the encryption process, an asymmetric approach is used, in which, first the input image is combined with the random phase mask and Fresnel propagated with a distance, d to get the intermediated image. Further, the polar decomposition (PD) is applied to the intermediate image which will give a rotational matrix and two symmetric matrices. The symmetric matrices can be used for authenticating the original information and serve as the private keys. The final encrypted image is obtained by performing the SPT of a particular order on the rotational matrix after PD. The encrypted image is made sparse by randomly retaining few pixels using photon counting approach. For authentication, the nonlinear correlation approach is studied, which offer better correlation peaks with fewer sparse-based complex samples. The numerical simulation results have been presented in support of the validity and effectiveness of the proposed technique. The proposed method deals with the optical encryption, authentication and also overcomes the limitations of data storage issue.

Original languageEnglish
Title of host publicationQuantum Optics and Photon Counting 2019
EditorsIvan Prochazka, Roman Sobolewski, Ralph B. James, Peter Domokos, Adam Gali
ISBN (Electronic)9781510627208
StatePublished - 1 Jan 2019
Externally publishedYes
EventQuantum Optics and Photon Counting 2019 - Prague, Czech Republic
Duration: 1 Apr 20193 Apr 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceQuantum Optics and Photon Counting 2019
Country/TerritoryCzech Republic


  • Image authentication.
  • Photon counting
  • Polar decomposition
  • Spiral phase transform


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