Patents by Inventor Sebstian Gajek

Sebstian Gajek 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 storing data in a relational database and relational database server
    Patent number: 10313120
    Abstract: The invention relates to a method for storing data in a relational database, comprising a plurality of tables, wherein the data is stored in these tables, wherein each row of each table is provided with an original primary key for identification, and wherein foreign keys are provided for cross-referencing different tables of the relational database, wherein the primary keys are encrypted, wherein the foreign keys are encrypted based on the encrypted primary keys and wherein for each table where a primary key is referenced as a foreign key an encrypted pointer is stored to link the corresponding encrypted foreign key to the encrypted primary key. The present invention further relates to a relational database server.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: June 4, 2019
    Assignee: NEC CORPORATION
    Inventors: Ghassan Karame, Jens-Matthias Bohli, Sebstian Gajek
  • METHOD FOR STORING DATA IN A RELATIONAL DATABASE AND RELATIONAL DATABASE SERVER
    Publication number: 20150106632
    Abstract: The invention relates to a method for storing data in a relational database, comprising a plurality of tables, wherein the data is stored in these tables, wherein each row of each table is provided with an original primary key for identification, and wherein foreign keys are provided for cross-referencing different tables of the relational database, wherein the primary keys are encrypted, wherein the foreign keys are encrypted based on the encrypted primary keys and wherein for each table where a primary key is referenced as a foreign key an encrypted pointer is stored to link the corresponding encrypted foreign key to the encrypted primary key. The present invention further relates to a relational database server.
    Type: Application
    Filed: December 6, 2012
    Publication date: April 16, 2015
    Inventors: Ghassan Karame, Jens-Matthias Bohli, Sebstian Gajek