信息安全保护机制的分析与探讨

目前常用的信息安全保护机制主要有信息加密技术和信息隐藏技术。信息加密通常采用破译难度比较大的加密算法如DES、RSA等,对所要传送的信息进行加密;信息隐藏是把所要传送的信息嵌入到可以公开传输的多媒体介质中,如声音、图像等,从而使人觉察不到信息的存在。信息加密和信息隐藏都在某种程度上保证了秘密信息在公共信道上的安全传输,二者既有联系又有区别。本文对这两种技术进行了分析和比较,并在此基础上提出将二者相融合的设想。

The Mechanism for Protection of Information Security

Currently,we usually use encryption technology and information hiding technology for information security mechanism.For information encryption,we often adopt encryption algorithm which is difficult to be deciphered,such as DES,RSA and so on.The information will be encrypted.For information hiding,we often nest information into multi-media which could be transferred in public way,such as sounds,images and so on.By so doing,the information will not be imperceptible.In some sense,both information encryption and information hiding guaranteed that credential information could be transferred through common signal channel.They are two different conceptions,but they also have some relations.In this paper,these two technologies are analyzed and compared with each other.Based on analyzing and comparing,we refer to an idea which may merge each other.