掩密技术的研究与实现

Cover the Clandestine and Technical Research With Realizes

本文简单介绍了掩密技术,提出基于DCT变换的掩密框架,并详细讨论了一种以JPEG格式的图像为信息载体的基于DCT的掩密算法,提高了掩密信息的安全保密性,大大改善了空域掩密算法的脆弱性问题,结果显示该算法可有效的实现信息的安全传输。

This text introduces to cover the clandestine technique in brief,putting forward according to the transformation of DCT covers the secret frame,combining detailed discussion a kind of regard the format of JPEG portrait as the information carries of according to the DCT covers the secret calculate way,increases to cover the safe confidentiality of the secret information,improving consumedly the empty area covers the weak problem of the secret calculate way,the result shows that that calculate way can realize effectively the SSL of the information.