Patents by Inventor Alphonse M. Bracco

Alphonse M. Bracco 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: 5319705
    Abstract: A method and system are disclosed for securely distributing a plurality of software files from a software distribution processor to a user processor, while selectively enabling the user processor to only use a subset of a lesser plurality of the software files. This is achieved by employing a customer key which includes a clear customer number and a derived portion derived from the customer number. The customer key is transformed into a second customer key which serves as a key expression for encrypting a file encryption key specifically intended for a respective one of the plurality of files. A plurality of software files can be stored together, for example on a CD-ROM, with each file encrypted under a corresponding file encryption key. The CD-ROM can be distributed to many user processors. When a specific user processor needs to run one of the software files, a request will be transmitted from the user processor to the software distribution processor.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: June 7, 1994
    Assignee: International Business Machines Corporation
    Inventors: Bernard J. Halter, Alphonse M. Bracco, Donald B. Johnson, An V. Le, Stephen M. Matyas, Rostislaw Prymak, deceased, James D. Randall, John D. Wilkins