We propose to realize visual cryptography in an indirect way with the help of computer-generated hologram. At present, the recovery method of visual cryptography is mainly superimposed on transparent film or superimposed by computer equipment, which greatly limits the application range of visual cryptography. In this paper, the shares of the visual cryptography were encoded with computer-generated hologram, and the shares is reproduced by optical means, and then superimposed and decrypted. This method can expand the application range of visual cryptography and further increase the security of visual cryptography.

翻译：我们提议在计算机产生的全息图的帮助下,间接地实现视觉加密;目前,视觉加密的恢复方法主要是在透明胶片上或计算机设备加载的,这极大地限制了视觉加密的应用范围;在本文中,视觉加密的股份是用计算机产生的全息图编码的,这些股份是用光学手段复制的,然后是用超额和解密的。 这一方法可以扩大视觉加密的应用范围,进一步提高视觉加密的安全性。