In order to find a high speed secure encryption of image, an encryption based on bit planes division for optoelectronic devices is studied. The research focuses on the security and the ability against the invader of the encryption. The simulation results show that after encrypted, the information in the image is reduced, and the change of average gray-level of encryptedimage is larger. The results demonstrate the gray-level transform cancels the correlation among pixels of primary image, and the pixel distributes randomly, which makes invader hard to analyze correlation and find outline of the original image. Hence, this encryption has a high security, and the average gray-level of encrypted image is more suitable than the change of average gray-level.
Key words
optical information security /
information optics /
security evaluation /
bit plane division encryption
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1]NOMURA T. Optical encryption using a joint tra-nsform correlator architecture[J]. Opt. Eng.,2000,39(8):2031-2035.
[2]UNNIKISHNAN G, JOSEPH J, SINGH K. Optical encryption by double random phase encoding in the fractional Fourier domain[J]. Opt. Lett.,1995,25:887-889.
[3]位恒政，彭翔，张鹏,等. 双随机相位加密系统的选择明文攻击[J].光学学报,2007，27(5)：824-829.
WEI Heng-zheng,PENG Xiang,ZHANG Peng, et al. Chosen-Plain text attack ondouble phase encoding encryption eechniqu[J]. Acta Optica Sinica, 2007，27(5)：824-829.(in Chinese with an English abstract)
[4]于斌，彭翔.基于级联相位恢复算法的光学图像加密[J].光学学报，2005,25(7):881-884.
YU Bing, PENG Xiang. Optical image encryption based on cascaded phase retrieval algorithm[J]. Acta Optica Sinica，2005,25(7):881-884.(in Chinese with an English abstract)[5]HE M Z, CAI L Z. Phase-only encryption and wa-te
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
