Patents by Inventor David Robert Lott

David Robert Lott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Encryption output data generation method and system
    Patent number: 7925886
    Abstract: A hashing method and system. The method comprises receiving by a computing system first source data. A first hash function is applied to first source data. A first hash output is generated by the first hash function as a result of applying the first hash function to first source data. The computing system performs an operation relating the first source data with at least a portion of the first hash output to generate second source data. The first hash function is applied to the second source data. A second hash output is generated as a result of applying the first hash function to the second source data.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: April 12, 2011
    Assignee: International Business Machines Corporation
    Inventor: David Robert Lott
  • Hashing method and system
    Patent number: 7694147
    Abstract: A hashing method and system. The method comprises receiving by a computing system, a user password. The computing system generates a first hash for the user password. The computing system generates a second hash for a system parameter and performs an operation relating the first hash to the second hash to generate a first combination value. The computing system generates a third hash for the first combination value. The computing system receives a specific password for requesting access to the computing system. The computing system generates a fourth hash for said specific password and performs an operation relating the fourth hash to the second hash to generate a second combination value. The computing system generates a fifth hash for the second combination value. The third hash is compared to the fifth hash to determine that the third hash matches the fifth hash. Access is enabled to the computing system.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: April 6, 2010
    Assignee: International Business Machines Corporation
    Inventor: David Robert Lott
  • ENCRYPTION OUTPUT DATA GENERATION METHOD AND SYSTEM
    Publication number: 20080310631
    Abstract: A hashing method and system. The method comprises receiving by a computing system first source data. A first hash function is applied to first source data. A first hash output is generated by the first hash function as a result of applying the first hash function to first source data. The computing system performs an operation relating the first source data with at least a portion of the first hash output to generate second source data. The first hash function is applied to the second source data. A second hash output is generated as a result of applying the first hash function to the second source data.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 18, 2008
    Inventor: David Robert Lott