Patents by Inventor Joy Algesheimer

Joy Algesheimer 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 and system for processing a request of a customer
    Patent number: 7844496
    Abstract: The invention provides methods, apparatus and systems for securely processing an originator request of a customer. This originator request can be sent to at least one first entity.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: November 30, 2010
    Assignee: International Business Machines Corporation
    Inventors: Joy Algesheimer, Christian Cachin, Jan Camenisch, Guenter Karjoth
  • Method for reducing a value modulo a shared secret
    Patent number: 7194089
    Abstract: A method is provided for reducing a known value modulo a shared secret value among network devices exchanging messages in a network. The reduction results in a share of reduced value for each network device of a reduced value. Each network device has its share of known value and its share of shared secret value. It performs an inversion step for deriving from the share of shared secret value a share of the inverse of the shared secret value by using an approximation process, resulting in a share of inverse value; a multiplication step for deriving from the share of inverse value by use of the share of known value a share of multiplied inverse value; a rounding step for rounding the share of multiplied inverse value; and a calculation step for deriving the share of reduced value from the share of known value, the rounded share of multiplied inverse value, and the share of shared secret value.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: March 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Joy Algesheimer, Jan Camenisch, Victor Shoup
  • Method and system for processing a request of a customer
    Publication number: 20040225570
    Abstract: The invention provides methods, apparatus and systems for securely processing an originator request of a customer. This originator request can be sent to at least one first entity.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 11, 2004
    Applicant: International Business Machines Corporation
    Inventors: Joy Algesheimer, Christian Cachin, Jan Camenisch, Guenter Karjoth
  • Method for reducing a value modulo a shared secret
    Publication number: 20030112969
    Abstract: A method is provided for reducing a known value modulo a shared secret value among network devices exchanging messages in a network. The reduction results in a share of reduced value for each network device of a reduced value. Each network device has its share of known value and its share of shared secret value. It performs an inversion step for deriving from the share of shared secret value a share of the inverse of the shared secret value by using an approximation process, resulting in a share of inverse value; a multiplication step for deriving from the share of inverse value by use of the share of known value a share of multiplied inverse value; a rounding step for rounding the share of multiplied inverse value; and a calculation step for deriving the share of reduced value from the share of known value, the rounded share of multiplied inverse value, and the share of shared secret value.
    Type: Application
    Filed: October 24, 2002
    Publication date: June 19, 2003
    Applicant: International Business Machines Corporation
    Inventors: Joy Algesheimer, Jan Camenisch, Victor Shoup