Patents Assigned to Toven Technologies Inc.
  • Encryption apparatus for computer device
    Patent number: 5325430
    Abstract: A computing device has storage means, for example fixed and floppy discs, a processor and I/O devices. A communication bus connects this device to a security module which includes data encryption circuitry. The security module preferably also includes its own microprocessor, security storage and a token coupler for copying to a token, for example an IC card. Data stored on the storage means is encrypted in accordance with keys read from tokens in the token coupler. Different levels of encryption and access can be provided.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: June 28, 1994
    Assignee: Toven Technologies Inc.
    Inventors: Brian J. Smyth, Leon C. Vandervalk