Patents by Inventor Stephan Feil

Stephan Feil 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: 9577990
    Abstract: A method for controlling access of a user to a secondary system. A primary system receives, from a user system connected to the secondary system, first authentication information comprising an encryption of a random string. The encryption of the random string is a user-specific key. Second authentication information is generated from protected secondary authentication data stored in the primary system. Generation of the second authentication information includes applying the user-specific key to the protected secondary authentication data to generate the second authentication information. The second authentication information is provided to the secondary system to enable access of the user to the secondary system.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: February 21, 2017
    Assignee: International Business Machines Corporation
    Inventor: Stephan Feil
  • Publication number: 20150222608
    Abstract: A method for controlling access of a user to a secondary system. A primary system receives, from a user system connected to the secondary system, first authentication information comprising an encryption of a random string. The encryption of the random string is a user-specific key. Second authentication information is generated from protected secondary authentication data stored in the primary system. Generation of the second authentication information includes applying the user-specific key to the protected secondary authentication data to generate the second authentication information. The second authentication information is provided to the secondary system to enable access of the user to the secondary system.
    Type: Application
    Filed: April 13, 2015
    Publication date: August 6, 2015
    Inventor: Stephan Feil
  • Patent number: 9087180
    Abstract: A method and system for controlling access of a user to a secondary system. A primary system sends a random string to a user system that is connected to the secondary system. The user is logged on the user system. The primary system receives from the user system first authentication information including an encryption of the random string by a private key of the user. The primary system generates a user-specific key consisting of the encryption of the random string.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: July 21, 2015
    Assignee: International Business Machines Corporation
    Inventor: Stephan Feil
  • Publication number: 20130275764
    Abstract: A method and system for controlling access of a user to a secondary system. A primary system sends a random string to a user system that is connected to the secondary system. The user is logged on the user system. The primary system receives from the user system first authentication information including an encryption of the random string by a private key of the user. The primary system generates a user-specific key consisting of the encryption of the random string.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventor: Stephan Feil
  • Patent number: 8522324
    Abstract: A method and system for controlling access of a user to a secondary system. A primary system sends a random string to a user system that is connected to the secondary system. The user is logged on the user system. The primary system receives from the user system first authentication information including an encryption of the random string by a private key of the user. The primary system generates a user-specific key consisting of the encryption of the random string. The primary system generates second authentication information from protected secondary authentication data stored in the primary system via application of the user-specific key to the protected secondary authentication data. The primary system provides the second authentication information to the secondary system to enable access of the user to the secondary system.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: August 27, 2013
    Assignee: International Business Machines Corporation
    Inventor: Stephan Feil
  • Publication number: 20120226911
    Abstract: A method and system for controlling access of a user to a secondary system. The user is logged on a user system. A primary system sends a random string to a user system that is connected to the secondary system. The user is logged on the user system. The primary system receives from the user system first authentication information including an encryption of the random string by a private key of the user. The primary system generates a user-specific key consisting of the encryption of the random string. The primary system generates second authentication information from protected secondary authentication data stored in the primary system via application of the user-specific key to the protected secondary authentication data. The primary system provides the second authentication information to the secondary system to enable access of the user to the secondary system.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Inventor: Stephan Feil
  • Patent number: 8230487
    Abstract: A method and system for controlling access of a user to a secondary system. The user is logged on a user system. A primary system connects the user system to the secondary system. A first authentication information is received from the user system. After determining that the first authentication information conforms to protected primary authentication data included in the primary system, access of the user to the primary system is provided followed by generation of a user-specific key from the first authentication information. Second authentication information is derived from protected secondary authentication data included in the primary system, by use of the user-specific key in conjunction with the protected secondary authentication data. The second authentication information is provided to the secondary system to enable access of the user to the secondary system.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventor: Stephan Feil
  • Publication number: 20070143597
    Abstract: A method and system for controlling access of a user to a secondary system. The user is logged on a user system. A primary system connects the user system to the secondary system. A first authentication information is received from the user system. After determining that the first authentication information conforms to protected primary authentication data included in the primary system, access of the user to the primary system is provided followed by generation of a user-specific key from the first authentication information. Second authentication information is derived from protected secondary authentication data included in the primary system, by use of the user-specific key in conjunction with the protected secondary authentication data. The second authentication information is provided to the secondary system to enable access of the user to the secondary system.
    Type: Application
    Filed: October 12, 2006
    Publication date: June 21, 2007
    Applicant: International Business Machines Corporation
    Inventor: Stephan Feil