针对随机相位编码光学图像加密技术，简要回顾了它的国内外研究进展，并讨论了它的发展态势。-Research and progress of optical image encryption using random phase mask present research situation and development of image encryption using random phase mask at home and abroad are reviewed. At the sam

一种可破解permutation-only图像加密算法的通用方法，使用cat，baker等置乱方法加密的图像可成功被破解。-One kind of permutation-only image can crack the encryption algorithm common method using cat, baker and other image scrambling encryption method can be successfully cracked.