Patents by Inventor Michael Jahnich

Michael Jahnich 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 the execution of an encryption program for the encryption of data in a microprocessor-based portable data carrier
    Patent number: 6725374
    Abstract: A method for the execution of an encryption program for the encryption of data in a microprocessor-based portable data carrier is described, with the encryption program comprising several parallelisationable subprograms. According to the invention the serial order of execution of at least two subprograms is randomly permuted in the execution of the encryption program under the consideration of at least one random number.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: April 20, 2004
    Assignee: Orga Kartensysteme GmbH
    Inventors: Michael Jahnich, Guido Wueppenhorst, Werner Doppmeler