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Machine translation
1. (WO2010146140) WHITE-BOX CRYPTOGRAPHIC SYSTEM WITH CONFIGURABLE KEY USING BLOCK SELECTION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/146140    International Application No.:    PCT/EP2010/058591
Publication Date: 23.12.2010 International Filing Date: 17.06.2010
IPC:
H04L 9/06 (2006.01)
Applicants: IRDETO B.V. [NL/NL]; Taurusavenue 105 NL-2132 LS Hoofddorp (NL) (For All Designated States Except US).
MICHIELS, Wilhelmus Petrus Adrianus Johannus [NL/NL]; (NL) (For US Only)
Inventors: MICHIELS, Wilhelmus Petrus Adrianus Johannus; (NL)
Agent: PELLY, Jason, Charles; Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road London WC1X 8BT (GB)
Priority Data:
09163247.1 19.06.2009 EP
Title (EN) WHITE-BOX CRYPTOGRAPHIC SYSTEM WITH CONFIGURABLE KEY USING BLOCK SELECTION
(FR) SYSTÈME CRYPTOGRAPHIQUE STRUCTUREL AVEC CLÉ CONFIGURABLE ET SÉLECTION DE BLOCS
Abstract: front page image
(EN)A white-box cryptographic system (600) is presented for performing a key- dependent cryptographic operation, such as AES. The system comprises a plurality of basic blocks (640), such as look-up tables, and a basic block manager (650). The basic block manager is configured to iteratively select a selected one of the plurality of basic blocks in dependency on a block selection string (664). By sending a new block selection string to the system the key for which the system is configured can be updated.
(FR)Cette invention concerne un système cryptographique structurel (600) pour l'exécution d'une opération cryptographique dépendant d'une clé telle qu'AES Le système comprend une pluralité de blocs de base (640), tels que des tables de consultation, et un gestionnaire de blocs de base (650). Le gestionnaire de blocs de base est conçu pour sélectionner itérativement un bloc pris dans la pluralité des blocs de base, selon un cordon de sélection de blocs (664). L'envoi d'un nouveau cordon de sélection de blocs au système permet de mettre à jour la clé pour laquelle le système est conçu.
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, JP, 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, RO, RS, RU, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, 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, 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)