Method for controlling file access on computer systems
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United States of America Patent
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Dec 27, 2011
Grant Date -
Dec 6, 2007
app pub date -
Jun 5, 2006
filing date -
Jun 5, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for controlling file access on computer systems is disclosed. Initially, a virtual machine manager (VMM) is provided in a computer system. In response to a write request, the VMM determines whether or not a location field is valid. If the location field is not valid, then the VMM writes the write request information to a storage device; but if the location field is valid, then the VMM encrypts the write request information before writing the write request information to the storage device. In response to a read request, the VMM again determines whether or not a location field is valid. If the location field is not valid, then the VMM sends the read request information to a read requester; but, if the location field is valid, then the VMM decrypts the read request information before sending the read request information to the read requester.
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