Patents by Inventor Dah-Haur H. Lin

Dah-Haur H. Lin 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).

  • Database authorization rules and component logic authorization rules aggregation
    Patent number: 9160752
    Abstract: Embodiments of the present invention provide a method, system and computer program product for aggregating database and component logic authorization rules in a multi-tier application. In an embodiment of the invention, a method for aggregating database and component logic authorization rules in a multi-tier application system can include aggregating role-based authorization rules for both a persistence layer and a logic layer of a multi-tier application in a unified policy, distributing the unified policy to both the persistence layer and the logic layer of the multi-tier application, transforming the unified policy into respectively a set of role based permissions for the persistence layer and a set of role based permissions for the logic layer, and applying the set of role based permissions for the persistence layer in the persistence layer, and the set of role based permissions for the logic layer in the logic layer of the multi-tier application.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: October 13, 2015
    Assignee: International Business Machines Corporation
    Inventors: German S. Goldszmidt, Dah-Haur H. Lin, Anthony J. Nadalin, Nataraj Nagaratnam, Indrajit Poddar
  • DATABASE AUTHORIZATION RULES AND COMPONENT LOGIC AUTHORIZATION RULES AGGREGATION
    Publication number: 20090064272
    Abstract: Embodiments of the present invention provide a method, system and computer program product for aggregating database and component logic authorization rules in a multi-tier application. In an embodiment of the invention, a method for aggregating database and component logic authorization rules in a multi-tier application system can include aggregating role-based authorization rules for both a persistence layer and a logic layer of a multi-tier application in a unified policy, distributing the unified policy to both the persistence layer and the logic layer of the multi-tier application, transforming the unified policy into respectively a set of role based permissions for the persistence layer and a set of role based permissions for the logic layer, and applying the set of role based permissions for the persistence layer in the persistence layer, and the set of role based permissions for the logic layer in the logic layer of the multi-tier application.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: German S. Goldszmidt, Dah-Haur H. Lin, Anthony J. Nadalin, Nataraj Nagaratnam, Indrajit Poddar
  • Heterogenous domain-based routing mechanism for user authentication
    Patent number: 7484243
    Abstract: A routing routine is used within a security access program in order to provide access to various heterogeneous directories and registries. Each user logs on with an indication of the domain of which they are a part. An access protocol for the given domain is loaded and used to authenticate the user's access rights.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: January 27, 2009
    Assignee: International Business Machines Corporation
    Inventors: John Andrew Dankovich, Ann Thuan Ho, Dah-Haur H. Lin