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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 24 — Dec. 15, 2006
  • pp: 3579–3581

Asymmetric cryptography based on wavefront sensing

Xiang Peng, Hengzheng Wei, and Peng Zhang  »View Author Affiliations


Optics Letters, Vol. 31, Issue 24, pp. 3579-3581 (2006)
http://dx.doi.org/10.1364/OL.31.003579


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Abstract

A system of asymmetric cryptography based on wavefront sensing (ACWS) is proposed for the first time to our knowledge. One of the most significant features of the asymmetric cryptography is that a trapdoor one-way function is required and constructed by analogy to wavefront sensing, in which the public key may be derived from optical parameters, such as the wavelength or the focal length, while the private key may be obtained from a kind of regular point array. The ciphertext is generated by the encoded wavefront and represented with an irregular array. In such an ACWS system, the encryption key is not identical to the decryption key, which is another important feature of an asymmetric cryptographic system. The processes of asymmetric encryption and decryption are formulized mathematically and demonstrated with a set of numerical experiments.

© 2006 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.4560) Fourier optics and signal processing : Data processing by optical means
(100.0100) Image processing : Image processing
(200.0200) Optics in computing : Optics in computing

ToC Category:
Fourier Optics and Optical Signal Processing

History
Original Manuscript: July 12, 2006
Revised Manuscript: September 8, 2006
Manuscript Accepted: September 22, 2006
Published: November 22, 2006

Citation
Xiang Peng, Hengzheng Wei, and Peng Zhang, "Asymmetric cryptography based on wavefront sensing," Opt. Lett. 31, 3579-3581 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-24-3579

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