Patents by Inventor Jay GRAVER

Jay GRAVER 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 and server for providing transaction keys
    Patent number: 10396989
    Abstract: A method and a server for providing transaction keys for a transaction system includes transaction units which use pre-delivered transaction keys, and are provided by a key provisioning server and wherein the transaction key usage is checked by a transaction checking server. A transaction key is derived from a master key of a transaction unit, wherein a varying derivation parameter is used in the step of deriving. The step of deriving comprises a first sub step of deriving a key from the master key and a second sub step of deriving the transaction key from the derived key. The first sub step or the second sub step of deriving is performed dependent on a security level of the transaction unit.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: August 27, 2019
    Assignee: GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    Inventors: Lauri Pesonen, Ulrich Weinert, Jarmo Mikael Kaikkonen, Jay Graver
  • Method and Server for Providing Transaction Keys
    Publication number: 20170324560
    Abstract: A method and a server for providing transaction keys for a transaction system includes transaction units which use pre-delivered transaction keys, and are provided by a key provisioning server and wherein the transaction key usage is checked by a transaction checking server. A transaction key is derived from a master key of a transaction unit, wherein a varying derivation parameter is used in the step of deriving. The step of deriving comprises a first sub step of deriving a key from the master key and a second sub step of deriving the transaction key from the derived key. The first sub step or the second sub step of deriving is performed dependent on a security level of the transaction unit.
    Type: Application
    Filed: November 9, 2015
    Publication date: November 9, 2017
    Inventors: Lauri PESONEN, Ulrich WEINERT, Jarmo Mikael KAIKKONEN, Jay GRAVER