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    • 3. 发明申请
    • System and method for software tamper detection
    • 软件篡改检测的系统和方法
    • US20070067643A1
    • 2007-03-22
    • US11232471
    • 2005-09-21
    • Oscar ZhukGlenn MortenJames Veres
    • Oscar ZhukGlenn MortenJames Veres
    • G06F12/14
    • G06F21/10G06F21/552G06F21/554
    • A method, system, and apparatus are directed towards detecting unauthorized modification of software, such as virtual smart card software. An analysis is performed on the software to generate a unique pattern that is based on the integrity of the software. The pattern is generated using various portions of the software code. In one embodiment, matrix manipulations that involve a sequence of randomly selected matrix operations are performed on extracted portions of the software code. Sample sizes of the software code, sizes of the matrices, and other initialization parameters may be selected based on a desired security level. The resulting pattern may then be compared to a known normal pattern for the software to detect unauthorized modification. In one embodiment, however, the resulting pattern may be algorithmically combined with another value. The resulting combination may be used to decrypt content, if the software has not been modified.
    • 方法,系统和装置旨在检测诸如虚拟智能卡软件的软件的未经授权的修改。 对软件执行分析,以生成基于软件完整性的唯一模式。 使用软件代码的各个部分生成模式。 在一个实施例中,涉及随机选择的矩阵运算序列的矩阵操作在软件代码的提取部分上执行。 可以基于期望的安全级别来选择软件代码的样本大小,矩阵的大小和其他初始化参数。 然后可以将所得到的模式与用于软件的已知正常模式进行比较以检测未经授权的修改。 然而,在一个实施例中,所得到的模式可以与另一个值进行算术组合。 如果软件未被修改,则所得到的组合可以用于解密内容。