Invention Grant
US08510554B2 Key management system, key management method, server apparatus and program 有权
密钥管理系统,密钥管理方法,服务器设备和程序

  • Patent Title: Key management system, key management method, server apparatus and program
  • Patent Title (中): 密钥管理系统,密钥管理方法,服务器设备和程序
  • Application No.: US12782621
    Application Date: 2010-05-18
  • Publication No.: US08510554B2
    Publication Date: 2013-08-13
  • Inventor: Kazuhide Koike
  • Applicant: Kazuhide Koike
  • Applicant Address: JP Tokyo
  • Assignee: NEC Corporation
  • Current Assignee: NEC Corporation
  • Current Assignee Address: JP Tokyo
  • Priority: JP2009-124236 20090522
  • Main IPC: H04L29/06
  • IPC: H04L29/06
Key management system, key management method, server apparatus and program
Abstract:
Disclosed is a key management system including plural terminal devices and a server. Each of the terminal devices includes: authentication means for authenticating a user and acquiring user information; delivery key registration means for registering a delivery key linked to the user information based on corresponding information, transmitted from the server, between the user information and the delivery key; encryption key receiving means for receiving an encryption key using the delivery key. The server includes terminal information storage means for storing the terminal identification information, user information on the user utilizing the terminal device and the delivery key, wherein the terminal identification information, the user information and the delivery key are linked to each other; and encryption key delivering means for transmitting the encryption key using the delivery key linked to the user information on the user performing secret communication.
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