用全息干涉法实现图象的加密存储

The cryptographic storage of graphic informationthrough holographic interference

本文提出两种图象信息的加密存储方法。通过π位相调制和参光角度编码两种方式对图象进行编码，以全息干涉方式读出信息。没有解码，其它任何人无法读出信息。文章中的方法有着广泛的应用前景。

Two cryptographic methods for storage of graphic information are proposed in this paper.Thegraphic information is encoded by π-phase modulation and the reference beam's angle modulation.The informationis read out by means of holographic interference. Without decode card,anyone else can't read out the informationstored in the informational card.There is a brighter promise for its application.