An improved optic-electronic hybrid encoding technique for certificate validation

Ke-nan Wu; Jia-sheng Hu; Yong Lin

doi:10.1117/12.757024

4 January 2008 An improved optic-electronic hybrid encoding technique for certificate validation

Ke-nan Wu, Jia-sheng Hu, Yong Lin

Proceedings Volume 6837, Information Optics and Photonics Technologies II; 683718 (2008) https://doi.org/10.1117/12.757024
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

We have proposed an improved optic-electronic hybrid encoding technique for certificate validation based on works of Junji Ohtsubo and Ayano Fujimoto. Corresponding experiment was carried out for substantiating our proposed method. Our approach enhances the level of security by importing another key image, largely increasing the cipher space and inducing a better resistance to brutal attacks. Optical experiment exhibits while the encrypted results offered is a correct one and another licit one but contaminated by an Additive Gaussian Noise with a Standard Deviation of 0.4, the PSNR of decrypted image is 6.87 and 6.54, respectively. Experimental results indicate the effectiveness and robustness of this method. This paper conducts a beneficial exploration in the practical application of optical authentication technique.

Citation Download Citation

Ke-nan Wu, Jia-sheng Hu, and Yong Lin "An improved optic-electronic hybrid encoding technique for certificate validation", Proc. SPIE 6837, Information Optics and Photonics Technologies II, 683718 (4 January 2008); https://doi.org/10.1117/12.757024

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KEYWORDS

Computer programming

Hybrid optics

Image encryption

Image enhancement

Image processing

Image restoration

CCD cameras

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