Title:
ENCRYPTION KEY DELIVERY SYSTEM, KEY DELIVERY ECU, KEY RECEPTION ECU, KEY DELIVERY PROGRAM, KEY RECEPTION PROGRAM, AND METHOD FOR DELIVERING ENCRYPTION KEY
Document Type and Number:
WIPO Patent Application WO/2018/142504
Kind Code:
A1
Abstract:
Provided are an encryption key delivery system, etc., with which it is possible to reduce the data volume needed for key updates. An encryption key delivery system (1) having a key delivery ECU (100) for transmitting an encryption key and a key reception ECU (200) for receiving an encryption key, wherein the key delivery ECU transmits an encryption key to the key reception ECU (in 133). The key delivery ECU also determines completion of encryption key transmission to the key reception ECU on the basis of the result of determination as to whether verification data transmitted from the key reception ECU and encryption key verification data calculated from a common key held in a local device and an identifier of the key reception ECU match each other (in 134). The key reception ECU records the received encryption key in the local device, calculates verification data for the received encryption key from the common key held in the local device and an identifier of the local device, and transmits the calculated data to the key delivery ECU (in 231).
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Inventors:
USUI KENTA (JP)
ABE YASUHIKO (JP)
SUZUKI NAOKI (JP)
ABE YASUHIKO (JP)
SUZUKI NAOKI (JP)
Application Number:
PCT/JP2017/003596
Publication Date:
August 09, 2018
Filing Date:
February 01, 2017
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H04L9/08; H04L9/32
Domestic Patent References:
| WO2016093368A1 | 2016-06-16 |
Foreign References:
| JP2011139186A | 2011-07-14 |
Other References:
TAKESHI SUGASHIMA ET AL.: "Secure Katsu Koritsuteki na Shasai Kagi Kanri no Teian", SCIS2016 [USB], 19 January 2016 (2016-01-19), pages 1 - 6
KEISUKE TAKEMORI ET AL.: "In-Vehicle Network Security Using Secure Element", IEICE TRANSACTIONS ON FUNDAMENALS OF ELECTRONICS, COMMUNICATIONS AND COMPUTER SCIENCES, vol. E99-A, no. 1, 1 January 2016 (2016-01-01), pages 208 - 216, XP055537638, Retrieved from the Internet [retrieved on 20170413]
HIDEAKI KAWABATA ET AL.: "Shasai ECU Muke no Kagi Kanri Hoshiki", SCIS2016 [USB], vol. 2F4-5, 22 January 2016 (2016-01-22), pages 1 - 7
GEOFF EMERSON ET AL.: "Using the Cryptographic Service Engine (CSE) An introduction to the CSE module", FREESCAL SEMICONDUCTOR APPLICATION NOTE, June 2011 (2011-06-01), pages 1 - 28, XP055537645, Retrieved from the Internet [retrieved on 20170413]
KEISUKE TAKEMORI ET AL.: "In-Vehicle Network Security Using Secure Element", IEICE TRANSACTIONS ON FUNDAMENALS OF ELECTRONICS, COMMUNICATIONS AND COMPUTER SCIENCES, vol. E99-A, no. 1, 1 January 2016 (2016-01-01), pages 208 - 216, XP055537638, Retrieved from the Internet
HIDEAKI KAWABATA ET AL.: "Shasai ECU Muke no Kagi Kanri Hoshiki", SCIS2016 [USB], vol. 2F4-5, 22 January 2016 (2016-01-22), pages 1 - 7
GEOFF EMERSON ET AL.: "Using the Cryptographic Service Engine (CSE) An introduction to the CSE module", FREESCAL SEMICONDUCTOR APPLICATION NOTE, June 2011 (2011-06-01), pages 1 - 28, XP055537645, Retrieved from the Internet
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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