Title:
KEY STORAGE DEVICE, KEY STORAGE METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2006/077803
Kind Code:
A1
Abstract:
In a system where a plurality of sensor nodes are distributed and communication is performed between the distributed nodes by using an encryption key, a key required for communication is flexibly specified for each node and stored even when node arrangement is irregular or a plurality of distribution methods are used. An area dividing unit (611) divides a space as a node distribution object into predetermined small spaces. A key generation unit (612) generates an identical number of keys to the number of small spaces, causes a key pool storage area (613) to store the keys while correlating the small spaces to the keys. An arrangement sampling unit (614) predicts arrangement points of the respective nodes according to the probability density function, selects small spaces within a range communicable from the arrangement point of each predicted node, and specifies the key assigned for the selected small space as a storage object. This processing is repeated until a predetermined number of keys are specified for one node and a key write unit (615) writes the key specified by the arrangement sampling unit (614) in the node.
Inventors:
ITO TAKASHI (JP)
YONEDA TAKESHI (JP)
OHTA HIDENORI (JP)
YONEDA TAKESHI (JP)
OHTA HIDENORI (JP)
Application Number:
PCT/JP2006/300475
Publication Date:
July 27, 2006
Filing Date:
January 17, 2006
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
ITO TAKASHI (JP)
YONEDA TAKESHI (JP)
OHTA HIDENORI (JP)
ITO TAKASHI (JP)
YONEDA TAKESHI (JP)
OHTA HIDENORI (JP)
International Classes:
H04L9/08
Foreign References:
| JP2004248167A | 2004-09-02 |
Other References:
DONGGANG LIU AND PENG NING: "Location-Based Pairwise Key Establishments for Static Sensor Networks", 2003 ACM WORKSHOP ON SECURITY IN AD HOC AND SENSOR NETWORKS (SASN' 03), 2003, XP002995964, Retrieved from the Internet
WENLIANG DU ET AL.: "A Key Management Scheme for Wireless Sensor Networks Using Deployment Knowledge", IEEE INFOCOM 2004, 7 March 2004 (2004-03-07), pages 586 - 597, XP010740480
See also references of EP 1835653A4
ESCHENAUER; V. D. GLIGOR: "A Key-Management Scheme for Distributed Sensor Networks", PROCEEDINGS OF THE 9TH ACM CONFERENCE ON COMPUTER AND COMMUNICATIONS SECURITY, WASHINGTON, DC, USA, 18 November 2002 (2002-11-18), pages 41 - 47, XP007908590
W. DU; J. DENG; Y. S. HAN; S. CHEN; P. K. VARSHNEY: "A Key Management Scheme for Wireless Sensor Networks Using Deployment Knowledge", IEEE INFOCOM 2004, HONG KONG, March 2004 (2004-03-01)
DONGGANG LIU; PENG NING: "Location-Based Pairwise Key Establishments for Static Sensor Networks", 2003 ACM WORKSHOP ON SECURITY IN AD HOC AND SENSOR NETWORKS (SASN' 03, 2003
WENLIANG DU ET AL.: "A Key Management Scheme for Wireless Sensor Networks Using Deployment Knowledge", IEEE INFOCOM 2004, 7 March 2004 (2004-03-07), pages 586 - 597, XP010740480
See also references of EP 1835653A4
ESCHENAUER; V. D. GLIGOR: "A Key-Management Scheme for Distributed Sensor Networks", PROCEEDINGS OF THE 9TH ACM CONFERENCE ON COMPUTER AND COMMUNICATIONS SECURITY, WASHINGTON, DC, USA, 18 November 2002 (2002-11-18), pages 41 - 47, XP007908590
W. DU; J. DENG; Y. S. HAN; S. CHEN; P. K. VARSHNEY: "A Key Management Scheme for Wireless Sensor Networks Using Deployment Knowledge", IEEE INFOCOM 2004, HONG KONG, March 2004 (2004-03-01)
DONGGANG LIU; PENG NING: "Location-Based Pairwise Key Establishments for Static Sensor Networks", 2003 ACM WORKSHOP ON SECURITY IN AD HOC AND SENSOR NETWORKS (SASN' 03, 2003
Attorney, Agent or Firm:
Mizoi, Shoji (17-10 Ofuna 2-chom, Kamakura-shi Kanagawa 56, JP)
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