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基于超混沌加密的多水印分级嵌入算法
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作者 张慧华 郑胜林 +2 位作者 潘保昌 甘艳芬 温川雪 《广东工业大学学报》 CAS 2008年第4期52-55,68,共5页
为了提高多水印算法的安全性,提出了基于超混沌序列加密的多水印分级嵌入算法.该算法利用超混沌序列对水印图像进行加密,采用分级嵌入加密后的多个含不同信息的水印图像的方法.实验结果证明了该算法的可行性.该算法在检测水印时需要多... 为了提高多水印算法的安全性,提出了基于超混沌序列加密的多水印分级嵌入算法.该算法利用超混沌序列对水印图像进行加密,采用分级嵌入加密后的多个含不同信息的水印图像的方法.实验结果证明了该算法的可行性.该算法在检测水印时需要多组密钥,具有良好的保密性. 展开更多
关键词 多水印 分级嵌入 超混沌序列 多组密钥
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SECURE GROUP COMMUNICATIONS FOR LARGE DYNAMIC MULTICAST GROUP
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作者 Liu Jing Zhou Mingtian (College of Computer Science and Engineering, UEST of China, Chengdu 610054) 《Journal of Electronics(China)》 2003年第4期265-273,共9页
As the major problem in multicast security, the group key management has been the focus of research But few results are satisfactory. In this paper, the problems of group key management and access control for large dy... As the major problem in multicast security, the group key management has been the focus of research But few results are satisfactory. In this paper, the problems of group key management and access control for large dynamic multicast group have been researched and a solution based on SubGroup Secure Controllers (SGSCs) is presented, which solves many problems in IOLUS system and WGL scheme. 展开更多
关键词 Multicast security Group communication Group key management Access control Secret key tree
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