Patents by Inventor Susan M. Mniszewski

Susan M. Mniszewski 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).

  • Method for encryption and transmission of digital keying data
    Patent number: 4731840
    Abstract: A method for the encryption, transmission, and subsequent decryption of digital keying data. The method utilizes the Data Encryption Standard and is implemented by means of a pair of apparatus, each of which is selectable to operate as either a master unit or remote unit. Each unit contains a set of key encryption keys which are indexed by a common indexing system. The master unit operates upon command from the remote unit to generate a data encryption key and encrypt the data encryption key using a preselected key encryption key. The encrypted data encryption key and an index designator are then downloaded to the remote unit, where the data encryption key is decrypted for subsequent use in the encryption and transmission data. Downloading of the encrypted data encryption key enables frequent change of keys without requiring manual entry or storage of keys at the remote unit.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: March 15, 1988
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Susan M. Mniszewski, Edward A. Springer, David P. Brenner