Three-dimensional information encryption with phase extraction and phase shifting interferometry

Yishi Shi; Yali Wang; Yuhua Yang; Jingjuan Zhang

doi:10.1117/12.870354

4 November 2010 Three-dimensional information encryption with phase extraction and phase shifting interferometry

Yishi Shi, Yali Wang, Yuhua Yang, Jingjuan Zhang

Proceedings Volume 7848, Holography, Diffractive Optics, and Applications IV; 784807 (2010) https://doi.org/10.1117/12.870354
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Three-dimensional information encryption based on the phase extraction and phase shifting interferometry is proposed. The three-dimensional information with the pure amplitude and pure phase are constructed as the encryption target. First the complex amplitude of the three-dimensional information is calculated under the scalar diffraction theory, and its phase distribution is extracted independently. Then it is encrypted by the double random phase encoding, the complex amplitude is recorded by using two-step of phase shifting interferometry. Computer simulations demonstrate the feasibility, the robustness and the security of the proposed method. We analyze and simulate its resistance against the known plaintext attack as well. Furthermore, it is implied the potential of applying this method for the three-dimensional information encryption with much larger information quantity.

Citation Download Citation

Yishi Shi, Yali Wang, Yuhua Yang, and Jingjuan Zhang "Three-dimensional information encryption with phase extraction and phase shifting interferometry", Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784807 (4 November 2010); https://doi.org/10.1117/12.870354

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KEYWORDS

Phase interferometry

Spatial light modulators

Computer security

Computer programming

Computer simulations

Phase shift keying

3D acquisition

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