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1. (WO2012172832) AUTHENTICATOR, AUTHENTICATEE AND AUTHENTICATION METHOD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2012/172832 International Application No.: PCT/JP2012/054500
Publication Date: 20.12.2012 International Filing Date: 17.02.2012
IPC:
H04L 9/32 (2006.01) ,H04L 9/08 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
32
including means for verifying the identity or authority of a user of the system
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
06
the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
08
Key distribution
Applicants:
KABUSHIKI KAISHA TOSHIBA [JP/JP]; 1-1, Shibaura 1-chome, Minato-ku, Tokyo 1058001, JP (AllExceptUS)
NAGAI, Yuji [JP/JP]; null (UsOnly)
KATO, Taku [JP/JP]; null (UsOnly)
MATSUSHITA, Tatsuyuki [JP/JP]; null (UsOnly)
Inventors:
NAGAI, Yuji; null
KATO, Taku; null
MATSUSHITA, Tatsuyuki; null
Agent:
KURATA, Masatoshi; c/o SUZUYE & SUZUYE, 1-12-9, Toranomon, Minato-ku, Tokyo 1050001, JP
Priority Data:
2011-13564417.06.2011JP
Title (EN) AUTHENTICATOR, AUTHENTICATEE AND AUTHENTICATION METHOD
(FR) AUTHENTIFIANT, AUTHENTIFIÉ ET PROCÉDÉ D'AUTHENTIFICATION
Abstract:
(EN) According to one embodiment, an authentication method between an authenticatee which stores key information having a data structure composed of a key transition record, secret information XY of a matrix form, and secret information XYE which is created by encrypting the secret information XY, and an authenticator which authenticates the authenticatee, includes selecting, by the authenticator, a record corresponding to a device index of the authenticator from the key information which is received from the authenticatee, and decrypting the record by a device key, thereby taking out a key transition, and executing, by the authenticator, a decryption process on the secret information XYE, which is received from the authenticatee, by using the corresponding key transition, and sharing the secret information XY.
(FR) Selon un mode de réalisation, un procédé d'authentification entre un authentifié qui stocke des informations de clé ayant une structure de données composée d'un enregistrement de transition de clé, d'informations secrètes XY d'une forme matricielle et d'informations secrètes XYE créées par chiffrement des informations secrètes XY, et un authentifiant qui authentifie l'authentifié, consiste à choisir, par l'intermédiaire de l'authentifiant, un enregistrement correspondant à un index de dispositif de l'authentifiant à partir des informations de clé reçues de l'authentifié, puis à déchiffrer l'enregistrement au moyen d'une clé de dispositif, une transition de clé étant ainsi engagée, et à exécuter, par l'intermédiaire de l'authentifiant, un processus de déchiffrement des informations secrètes XYE, reçues de l'authentifié, au moyen de la transition de clé correspondante, et à partager les informations secrètes XY.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2721767US20140289526KR1020130129431