Patents by Inventor Thomas E. Palmatier

Thomas E. Palmatier 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).

  • Self-Authenticating cryptographic apparatus
    Patent number: 6912284
    Abstract: A self-authenticating apparatus for effecting secure communication of a binary signal. In the encipherment apparatus, key is generated as a function of plain text summed with a pseudorandom linear sequence. The decipherment apparatus performs a reverse function in an autokey mode. Incoming cipher text is summed with generated key to create a plain text stream. As in the encipherment device, key is generated as a function of the resulting plain text summed with a pseudorandom linear sequence.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: June 28, 2005
    Assignee: The United States of America as represented by the National Security Agency
    Inventor: Thomas E. Palmatier