Software self-checking systems and methods
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United States of America Patent
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Jan 8, 2013
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app pub date -
Aug 12, 2011
filing date -
Jun 13, 2001
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Abstract
Software self-checking mechanisms are described for improving software tamper resistance and/or reliability. Redundant tests are performed to detect modifications to a program while it is running. Modifications are recorded or reported. Embodiments of the software self-checking mechanisms can be implemented such that they are relatively stealthy and robust, and so that they are compatible with copy-specific static watermarking and other tamper-resistance techniques.
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