Title:
RADIO TAG MANAGEMENT SERVER, RADIO TAG, AND RADIO TAG MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/024430
Kind Code:
A1
Abstract:
A one-way hash function computing unit (318) converts a bit string having an optional length into a bit string which is a hash value having a predetermined length. A comparison unit (320) compares the difference between two bit strings. A random number generating unit (342) generates random bit strings. An information storage unit (310) stores two different bit strings (S) and (P), a bit string (R), a bit string (Ks) which is a shared key with a bit string (S) radio tag, and a bit string (TK) which is a hash value generated in a radio tag on the basis of a shared key (Kt). An update unit (344) replaces the S with a bit string which is a hash value in which a join bit string of the bit string (S) and the bit string (R) is generated as input, and substitutes the value of the bit string (S) before update into the bit string (P). The comparison unit (320) compares a bit string (TK') generated on the basis of the bit string (Ks) with the bit string (TK), and if the both are matched, the update unit updates the bit string (S) and the bit string (P).
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Inventors:
TAKAGI TSUYOSHI (JP)
TAKAHASHI OSAMU (JP)
NIWA HIROKAZU (JP)
TAKAHASHI OSAMU (JP)
NIWA HIROKAZU (JP)
Application Number:
PCT/JP2010/005174
Publication Date:
March 03, 2011
Filing Date:
August 23, 2010
Export Citation:
Assignee:
FUTURE UNIVERSITY HAKODATE (JP)
TAKAGI TSUYOSHI (JP)
TAKAHASHI OSAMU (JP)
NIWA HIROKAZU (JP)
TAKAGI TSUYOSHI (JP)
TAKAHASHI OSAMU (JP)
NIWA HIROKAZU (JP)
International Classes:
H04L9/32; G06F21/00; G06F21/60; G06F21/64; G06K17/00; H04L9/08
Foreign References:
| JP2006352800A | 2006-12-28 | |||
| JP2008104169A | 2008-05-01 | |||
| JP2009129321A | 2009-06-11 |
Other References:
KAZUHIRO NIWA ET AL: "Doki Mondai o Koryo shita Anzen na RFID Hoshiki no Teian", 2009 NEN SYMPOSIUM ON CRYPTOGRAPHY AND INFORMATION SECURITY (SCIS2009) YOKOSHU, vol. 4F1-1, 20 January 2009 (2009-01-20)
J. LIM ET AL: "A new hash-based RFID mutual authentication protocol providing enhanced user privacy protection", LECTURE NOTES IN COMPUTER SCIENCE, vol. 4991, 2008, pages 278 - 289, XP019088324
HIROKAZU NIWA ET AL: "Server Narisumashi Kogeki ni Taishi Anzen na RFID Security Hoshiki", COMPUTER SECURITY SYMPOSIUM 2009 (CSS2009) RONBUNSHU [SEPARATE VOL.1], IPSJ SYMPOSIUM SERIES, vol. 2009, no. 11, 19 October 2009 (2009-10-19), pages 505 - 510
J. LIM ET AL: "A new hash-based RFID mutual authentication protocol providing enhanced user privacy protection", LECTURE NOTES IN COMPUTER SCIENCE, vol. 4991, 2008, pages 278 - 289, XP019088324
HIROKAZU NIWA ET AL: "Server Narisumashi Kogeki ni Taishi Anzen na RFID Security Hoshiki", COMPUTER SECURITY SYMPOSIUM 2009 (CSS2009) RONBUNSHU [SEPARATE VOL.1], IPSJ SYMPOSIUM SERIES, vol. 2009, no. 11, 19 October 2009 (2009-10-19), pages 505 - 510
Attorney, Agent or Firm:
MORISHITA, SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
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