基于PPCT和基数k的动态图混合编码方案  

Dynamic graph hybrid encoding scheme based on PPCT and radix-k

作　　者：王慧娇[1] 沙宗鲁[1] 轩爱成[1] 

机构地区：[1]桂林电子科技大学计算机与控制学院,广西桂林541004

出　　处：《计算机工程与应用》2010年第25期109-111,共3页Computer Engineering and Applications

基　　金：桂林电子科技大学博士科研基金(No.Z206116);广西研究生教育创新计划资助项目(No.2009105950812M23)

摘　　要：针对PPCT动态图编码效率低的特点,提出了一种将PPCT枚举编码和基数k枚举编码进行混合编码的动态图编码方案。在保证其抗攻击力的前提下,为了提高PPCT枚举编码的编码效率,把基数k枚举编码的循环链表指针编码系数的方法运用到PPCT枚举编码中。该编码方案具有PPCT枚举编码的抗攻击能力和基数k枚举编码的编码效率,克服了PPCT动态图编码效率低的缺点。In this paper a new dynamic graph encoding scheme based on hybrid encoding between radix-k encoding enumeration and PPCT encoding enumeration is proposed for improving the low efficiency of PPCT dynamic graph encoding.In the premise of against a variety of attacks, the method that the pointer of circular linked list is used to encode the coefficients in radix-k encoding enumeration to PPCT encoding enumeration is applied, in order to improve the efficiency of PPCT.So this new scheme not only has the same capacity of against a variety of attacks as in PPCT, but also has the same efficiency of encoding as in radix-k encoding enumeration, and it overcomes the shortcoming of the low efficiency of PPCT dynamic graph encoding.

关 键 词：软件水印 平面环路树(PPCT) 基数k编码 混合编码 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]