Data integrity monitoring in trusted computing entity
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United States of America Patent
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Nov 25, 2008
Grant Date -
N/A
app pub date -
May 25, 2000
filing date -
May 28, 1999
priority date (Note) -
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Abstract
A method of security monitoring of data files in a computer platform is carried out by a trusted component having a processor and trusted memory area. The method comprises creating one or a plurality of data files in an untrusted memory area of said computing platform, for each created data file, periodically generating a digest data by applying a hash function to each data file, storing the digest data in a trusted memory area and for each file periodically comparing a current digest data of the file with a previously generated digest data of the file. Any differences between a previous and a current digest data indicate that a file in the untrusted memory area has been corrupted.
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