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1. (WO2000063856) CHIP CARD SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/063856    International Application No.:    PCT/EP2000/002853
Publication Date: 26.10.2000 International Filing Date: 31.03.2000
Chapter 2 Demand Filed:    17.07.2000    
G07F 7/10 (2006.01)
Applicants: KONINKLIJKE KPN N.V. [NL/NL]; Stationsplein 7, NL-9726 AE Groningen (NL) (For All Designated States Except US).
FRANSEN, Frank [NL/NL]; (NL) (For US Only)
Inventors: FRANSEN, Frank; (NL)
Agent: KRUK, Wiggert, Johan; Koninklijke KPN N.V., P.O. Box 95321, NL-2509 CH The Hague (NL)
Priority Data:
1011790 14.04.1999 NL
Abstract: front page image
(EN)By authentication of a card (1) for electronic payment transactions before subjecting a cryptographic module (4) to data to be enciphered within said module by a secret key (k), the manner in which the cryptographic module can be used and the character of the supplied data stream can be restricted to that which is normal for this kind of payment transaction, whereby experimenting with abnormal data to the end of hacking the key is excluded.
(FR)L'invention concerne l'authentification d'une carte (1) pour une transaction de paiement électronique, avant de soumettre à un module cryptographique (4) des données à crypter au sein dudit module au moyen d'une clé secrète (k). On peut choisir comment utiliser ce module cryptographique, ainsi que restreindre le caractère du train de données fourni à ce qui est normal pour ce genre de transaction de paiement. L'utilisation de données anormales en vue du piratage informatique de la clé est donc exclue.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)