In this regards, currently existing cryptological methods are not appropriate for the applications of nowadays multimedia encryption.
就这一点来说，使用传统密码学的方法对多媒体数据进行加密保护不是十分合适。
参考来源 - IP语音混沌加密算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
So the digital image compression technology and the digital image encryption technology have been born and applied in many field, such as multimedia, communication, medicine and so on.
数字图像压缩技术和数字图像加密技术应运而生，并且被广泛应用到多媒体、通讯、医学等等各个领域。
Not changing the Video Conference protocols in existence, we embed a good encryption algorithm (Permutation Code) in the system to safeguard the information of Multimedia.
在不改变现有协议的前提下，嵌入性能良好的加密解密算法（排列码算法）来保障信息的安全；
In this paper, LIU's high intensity public encryption algorithm is studied, and a multimedia data encryption & decryption software system is designed.
研究了刘氏高强度密码体制算法，并且设计一个基于此密码机制的多媒体数据加解密软件系统。
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