Patents by Inventor Jousuke Matsuki

Jousuke Matsuki 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).

  • IPSec processing device, network system, and IPSec processing program
    Patent number: 7917939
    Abstract: Security policy databases capable of being fast retrieved while securing sequentiality. An IPSec processing device of the present invention performs communications by encrypting IP packets exchanged between a first IP network and a second IP network. The IPSec processing device includes a security policy database that stores security policies. The security policy database includes first, second, and third security policy databases. The first and third security policy databases include a linear list structure, and the second security policy database includes a hash list structure. The IPSec processing device, when performing at least one of transmission and reception of the IP packet, retrieves a security policy in the order of the first, second, and third security policy databases.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: March 29, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Takehiro Morishige, Jousuke Matsuki, Masashi Yano
  • IPSec PROCESSING DEVICE, NETWORK SYSTEM, AND IPSec PROCESSING PROGRAM
    Publication number: 20080052756
    Abstract: Security policy databases capable of being fast retrieved while securing sequentiality. An IPSec processing device of the present invention performs communications by encrypting IP packets exchanged between a first IP network and a second IP network. The IPSec processing device includes a security policy database that stores security policies. The security policy database includes first, second, and third security policy databases. The first and third security policy databases include a linear list structure, and the second security policy database includes a hash list structure. The IPSec processing device, when performing at least one of transmission and reception of the IP packet, retrieves a security policy in the order of the first, second, and third security policy databases.
    Type: Application
    Filed: July 11, 2007
    Publication date: February 28, 2008
    Inventors: Takehiro Morishige, Jousuke Matsuki, Masashi Yano