基于k-gram频数的静态软件胎记
Computer Engineering(2011)
Abstract
基于k-gram的静态软件胎记无法较好区分2个代码量差距较大的程序,且其胎记的鲁棒性一般。为此,将程序k-gram碎片的频数向量作为软件胎记,以其中一个程序的k-gram碎片集为基准对另一个程序的频数向量进行预变换,计算变换后的2个频数向量之间夹角的余弦,作为胎记的相似度。实验结果表明,对于Java类文件的检测,该胎记的可信性和鲁棒性均有一定提高。
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Key words
software theft detection,static software birthmark,k-gram frequency
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