Patents by Inventor Troy A. Schultz

Troy A. Schultz 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).

  • Hybrid mode cryptographic method and system with message authentication
    Patent number: 8509427
    Abstract: An encryption and authentication technique that achieves enhanced integrity verification through assured error-propagation using a multistage sequence of pseudorandom permutations. The method generates intermediate data-dependent cryptographic variables at each stage, which are systematically combined into feedback loops. The encryption technique also generates an authentication tag with minimal post processing that is the size of the state.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: August 13, 2013
    Inventors: Eric Myron Smith, Daniel W. Engels, Peter Schweitzer, Troy A. Schultz
  • HYBRID MODE CRYPTOGRAPHIC METHOD AND SYSTEM WITH MESSAGE AUTHENTICATION
    Publication number: 20120076293
    Abstract: An encryption and authentication technique that achieves enhanced integrity verification through assured error-propagation using a multistage sequence of pseudorandom permutations. The method generates intermediate data-dependent cryptographic variables at each stage, which are systematically combined into feedback loops. The encryption technique also generates an authentication tag with minimal post processing that is the size of the state.
    Type: Application
    Filed: May 5, 2011
    Publication date: March 29, 2012
    Inventors: Eric Myron Smith, Daniel W. Engels, Peter Schweitzer, Troy A. Schultz