Patents by Inventor Craig R. Balogh

Craig R. Balogh 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).

  • Patent number: 5623546
    Abstract: A system and method allows portable, encrypted data to be accessible through multiple hosts, including new hosts (14), without requiring a secure link to the new hosts. A split key encryption system encrypts (52) data and stores the encrypted data on a portable device (10). A split of the encryption key is stored (54) in the portable device (10), and another split of the key is stored (54) in a home host (12) . A password-modified key is then made (58) by combining a password with the encryption key. This password-modified key is then reduced (58), with one split being stored on the host (12) and another split stored on the portable device (10) . Data can be accessed with a new host (14) by transferring (78) the host password-modified split to the new host (14) and entering (80) the password into the portable device (10).
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: April 22, 1997
    Assignee: Motorola, Inc.
    Inventors: Douglas A. Hardy, Craig R. Fossey, Craig R. Balogh, Steven R. Tugenberg
  • Patent number: 5341426
    Abstract: A method for establishing a secure communications link between first and second terminals includes a step of exchanging a first message. The first message contains information describing encryption devices and communications modes available within the terminals and user authentication information. The method also includes a step of selecting, in at least one terminal, a common key generation and ciphering algorithm. The method further includes steps of exchanging a second message for providing data to form traffic keys, exchanging a third message for synchronizing secure communications and initiating secure communication.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: August 23, 1994
    Assignee: Motorola, Inc.
    Inventors: George M. Barney, Douglas A. Hardy, Craig R. Balogh