Patents by Inventor Ulrik Bergsten

Ulrik Bergsten 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 authentication and signature of a user in an application service, using a mobile telephone as a second factor in addition to and independently of a first factor
    Patent number: 8819432
    Abstract: The invention relates to a method for the two-factor authentication of a user in an application service running on an application server. The first authentication factor is a PIN authentication code known only by the user and the application service, and the second authentication factor is the mobile communication terminal of the user on which is installed a reliability application obtained from a reliable third party or certified by the same. The reliability application is capable of generating, using the PIN authentication code and a secret key shared only with the reliable third party, a single use authentication code for each authentication of the user in the application service.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: August 26, 2014
    Assignee: Paycool International Ltd.
    Inventors: Ulrik Bergsten, Christian Gross, Jacques Thieblemont
  • Method of sharing a strong secret between two parties, one of whom has little processing power
    Patent number: 8345862
    Abstract: The invention relates to a method of sharing a strong secret F between two parties (A, B) previously sharing a weak secret F, this method of sharing combining a symmetric algorithm and an asymmetric algorithm, and consisting in using a fixed exponent e of small size, and in encrypting not the exponent e, but the modulus n, by means of the weak secret f.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: January 1, 2013
    Assignee: Paycool International Limited
    Inventors: Ulrik Bergsten, Christian Gross, Jacques Thieblemont
  • METHOD FOR AUTHENTICATION AND SIGNATURE OF A USER IN AN APPLICATION SERVICE, USING A MOBILE TELEPHONE AS A SECOND FACTOR IN ADDITION TO AND INDEPENDENTLY OF A FIRST FACTOR
    Publication number: 20110016320
    Abstract: The invention relates to a method for the two-factor authentication of a user in an application service running on an application server. The first authentication factor is a PIN authentication code known only by the user and the application service, and the second authentication factor is the mobile communication terminal of the user on which is installed a reliability application obtained from a reliable third party or certified by the same. The reliability application is capable of generating, using the PIN authentication code and a secret key shared only with the reliable third party, a single use authentication code for each authentication of the user in the application service.
    Type: Application
    Filed: January 27, 2009
    Publication date: January 20, 2011
    Applicant: PAYCOOL INTERNATIONAL LTD.
    Inventors: Ulrik Bergsten, Christian Gross, Jacques Thieblemont
  • METHOD OF SHARING A STRONG SECRET BETWEEN TWO PARTIES, ONE OF WHOM HAS LITTLE PROCESSING POWER
    Publication number: 20100316215
    Abstract: The invention relates to a method of sharing a strong secret F between two parties (A, B) previously sharing a weak secret F, this method of sharing combining a symmetric algorithm and an asymmetric algorithm, and consisting in using a fixed exponent e of small size, and in encrypting not the exponent e, but the modulus n, by means of the weak secret f.
    Type: Application
    Filed: November 17, 2008
    Publication date: December 16, 2010
    Applicant: Paycool International Limited
    Inventors: Ulrik Bergsten, Christian Gross, Jacques Thieblemont