CAJ | 학술논문

在研究扩频软件水印基本原理的基础上,提出一种新的扩频软件水印方案.该方案将软件导入函数引用次数作为软件的特征矢量,通过修改矢量各分量值将水印信号分散隐藏在软件整个代码内,并用相关性检测模型检测水印.给出水印信号的嵌入和检测模型,并对方案的抗攻击性和鲁棒性进行讨论.结果表明,与现有软件水印相比,该方案隐蔽性较高,实现应用比较简单,且能够有效抵抗多种常见类型的攻击.
재연구확빈연건수인기본원리적기출상,제출일충신적확빈연건수인방안.해방안장연건도입함수인용차수작위연건적특정시량,통과수개시량각분량치장수인신호분산은장재연건정개대마내,병용상관성검측모형검측수인.급출수인신호적감입화검측모형,병대방안적항공격성화로봉성진행토론.결과표명,여현유연건수인상비,해방안은폐성교고,실현응용비교간단,차능구유효저항다충상견류형적공격.
Based on the basic idea of spread spectrum software watermarking,a new spread spectrum software watermarking scheme is proposed.The scheme takes the cross reference count of import function as the software characteristic vector,and spreads watermark over the whole software instruction code by modifying vector,and detects watermark by applying signal correlation detection approach.The models of watermark embedding and detecting are given,and their robustness and security are analyzed.The results show that compared with other schemes of software watermarking,this scheme has great information imperceptibility and is easy to implement and apply.In addition,it can be immune to most known attacks.