Cryptographically signed filesystem
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 1, 2012
Grant Date -
May 24, 2007
app pub date -
Oct 25, 2006
filing date -
Mar 30, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A cryptographically signed filesystem provides a central database resident on a server that contains database objects. The server creates startup software to be installed in a client system's read only memory. The startup software contains a hash value for a second stage loader. The server also creates software for a bootstrap loader object which typically contains the operating system for a client system and also the bootstrap loader's hash value and a digital signature that is unique to the server. The startup software and objects created by the server are initially installed on a client device at the time of manufacture. The server can update a client's bootstrap loader and root filesystem at any time through the transmission of slices.
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