Patents by Inventor Thomas Keefee

Thomas Keefee 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).

  • Type system for access control lists
    Patent number: 8095557
    Abstract: A method and storage media for performing access resolution using ACL types is provided. Under an AND semantic, an intersection set formed from the types of multiple ACLs protecting a resource may be utilized to efficiently determine whether a request for a privilege to access the resource is granted or denied. If the privilege is not a member of the intersection set, the privilege cannot be granted. A union set may be used for an OR semantic. A global ACL type may represent all privileges system-wide or application-wide. A global ACL may represent a system-wide or application-wide access policy. A conjunction of a global ACL and a regular ACL may be stored in a cache. The union set, intersection set, or access resolution may also be cached for subsequent request processing.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: January 10, 2012
    Assignee: Oracle International Corporation
    Inventors: Tanvir Ahmed, Thomas Keefee, Vikram Pesati, Eric Sedlar
  • TYPE SYSTEM FOR ACCESS CONTROL LISTS
    Publication number: 20100281060
    Abstract: A method and storage media for performing access resolution using ACL types is provided. Under an AND semantic, an intersection set formed from the types of multiple ACLs protecting a resource may be utilized to efficiently determine whether a request for a privilege to access the resource is granted or denied. If the privilege is not a member of the intersection set, the privilege cannot be granted. A union set may be used for an OR semantic. A global ACL type may represent all privileges system-wide or application-wide. A global ACL may represent a system-wide or application-wide access policy. A conjunction of a global ACL and a regular ACL may be stored in a cache. The union set, intersection set, or access resolution may also be cached for subsequent request processing.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Tanvir Ahmed, Thomas Keefee, Vikram Pesati, Eric Sedlar