Patents by Inventor Joseph C. Angert

Joseph C. Angert 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).

  • Pad encryption method and software
    Patent number: 6324287
    Abstract: A pad encryption software architecture includes space on a floppy for storing the pad to be used with the encryption software. The pad is XOR generated with random numbers subject to redetermined offsets. If the pad is smaller than the text to be encrypted, then XOR takes several cycles with redetermined offsets used in XORing the pad with the remaining plain text to be encrypted. The offset is determined from a user selected password. New offsets are determined from old offsets by adding the current offset to the value of the byte in the pad located at the offset value.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 27, 2001
    Assignee: SCM Microsystems, Inc.
    Inventor: Joseph C. Angert
  • pad encryption method and software
    Patent number: 5799090
    Abstract: A pad encryption software architecture includes space on a floppy for storing the pad to be used with the encryption software. The pad is XOR generated with random numbers subject to redetermined offsets. If the pad is smaller than the text to be encrypted, then XOR takes several cycles with redetermined offsets used in XORing the pad with the remaining plain text to be encrypted. The offset is determined from a user selected password. New offsets are determined from old offsets by adding the current offset to the value of the byte in the pad located at the offset value.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: August 25, 1998
    Inventor: Joseph C. Angert