Patents by Inventor Harald Hewel

Harald Hewel 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: 8478973
    Abstract: System and method for providing and using expanded memory resources secure application environment is disclosed. An embodiment comprises a system and method for providing secure application functionality comprising receiving a request for a secure operation; determining if required application code for the secure operation is present in an application fragment store; sequentially loading a plurality of fragments of the required application code from an external memory, if the required application code is not present in the application fragment store; sequentially executing the plurality of fragments of the required application code; and sending a reply to the request for the secure operation. The system and method may further comprise decrypting each of the plurality of fragments of the required application code using a secure key prior to execution of the fragment and verifying the integrity of the code fragment.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: July 2, 2013
    Assignee: Infineon Technologies AG
    Inventors: Markus Gueller, Harald Hewel
  • Publication number: 20110093714
    Abstract: Embodiments relate to systems, methods and devices for asymmetric cryptographic authentication. In an embodiment, a system includes an accessory comprising an authentication chip, the authentication chip comprising a public authentication key, a private authentication key and data signed by a private verification key; and a device comprising a public verification key forming a verification key pair with the private verification key, the device configured to read the data and public authentication key from the authentication chip, verify the data and the public authentication key using the public verification key, and authenticate the accessory for use with the device using the public authentication key if verified.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 21, 2011
    Applicant: Infineon Technologies AG
    Inventors: Stephan Schaecher, Harald Hewel, Markus Gueller
  • Publication number: 20090300366
    Abstract: System and method for providing and using expanded memory resources secure application environment is disclosed. An embodiment comprises a system and method for providing secure application functionality comprising receiving a request for a secure operation; determining if required application code for the secure operation is present in an application fragment store; sequentially loading a plurality of fragments of the required application code from an external memory, if the required application code is not present in the application fragment store; sequentially executing the plurality of fragments of the required application code; and sending a reply to the request for the secure operation. The system and method may further comprise decrypting each of the plurality of fragments of the required application code using a secure key prior to execution of the fragment and verifying the integrity of the code fragment.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Markus Gueller, Harald Hewel
  • Patent number: 7295832
    Abstract: An identification information transmission pathway is separated from a system side to be performed by a mobile authorization means of an owner of a security module in a wireless way. To this end, the security module comprises two interfaces, i.e. one for a communication with a terminal and a further one for wirelessly communicating with the mobile authorization means. The mobile authorization means supplies identification information to the security module for an authentication examination at its part, either stored in the authorization means in a memory or otherwise generated there, like e.g. via biometric sensors, via a keyboard or the like. The security module, performing the examination of the identification information, like e.g. preferably via a zero knowledge method or a zero knowledge protocol, respectively, only then indicates a request for an action at the terminal, like e.g. of a money transfer, when the examination is successful.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: November 13, 2007
    Assignee: Infineon Technologies AG
    Inventor: Karl-Harald Hewel
  • Publication number: 20050103839
    Abstract: An identification information transmission pathway is separated from a system side to be performed by a mobile authorization means of an owner of a security module in a wireless way. To this end, the security module comprises two interfaces, i.e. one for a communication with a terminal and a further one for wirelessly communicating with the mobile authorization means. The mobile authorization means supplies identification information to the security module for an authentication examination at its part, either stored in the authorization means in a memory or otherwise generated there, like e.g. via biometric sensors, via a keyboard or the like. The security module, performing the examination of the identification information, like e.g. preferably via a zero knowledge method or a zero knowledge protocol, respectively, only then indicates a request for an action at the terminal, like e.g. of a money transfer, when the examination is successful.
    Type: Application
    Filed: November 18, 2004
    Publication date: May 19, 2005
    Applicant: Infineon Technologies AG
    Inventor: Karl-Harald Hewel