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Cryptographically signed filesystem

  • US 8,171,285 B2
  • Filed: 10/25/2006
  • Issued: 05/01/2012
  • Est. Priority Date: 03/30/1999
  • Status: Expired due to Fees
First Claim
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1. A process, comprising steps of:

  • calculating one or more hash values for each database object of a plurality of database objects in a central database resident on a server;

    creating a digital signature based on both of;

    the plurality of database objects and the hash values corresponding to the plurality of database objects;

    storing the plurality of database objects, the hash values corresponding to the plurality of database objects, and the digital signature of both the plurality of database objects and the corresponding hash values in a bootstrap code database object;

    assembling, using at least a hardware processor, a hash table file for a root filesystem database object on the server and incorporating the hash table file into the bootstrap code database object, wherein each filename and hash value for each file in the root filesystem database object is entered in the hash table file; and

    transmitting the bootstrap code database object to a client device.

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