Checking file integrity using signature generated in isolated execution
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United States of America Patent
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N/A
Issued Date -
Oct 3, 2002
app pub date -
Mar 30, 2001
filing date -
Mar 30, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A signature key is generated in a secure platform. The secure platform has a processor configured in one of a normal execution mode and an isolated execution mode. A file checker is loaded into an isolated memory area accessible to the processor in the isolated execution mode. In isolated execution mode, a file checker performs a scan operation on the original file and produces a result. A signature associated with the scanned file is generated based on the result and using the signature key. The signature indicates file integrity.
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