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1. (WO2015173434) METHOD FOR PROVING RETRIEVABILITY OF INFORMATION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/173434 International Application No.: PCT/EP2015/060917
Publication Date: 19.11.2015 International Filing Date: 18.05.2015
IPC:
G06F 21/64 (2013.01) ,H04L 29/06 (2006.01) ,G06F 3/06 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60
Protecting data
64
Protecting data integrity, e.g. using checksums, certificates or signatures
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29
Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02
Communication control; Communication processing
06
characterised by a protocol
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
06
Digital input from, or digital output to, record carriers
Applicants: NEC EUROPE LTD.[DE/DE]; Kurfuersten-Anlage 36 69115 Heidelberg, DE
UNIVERSITÄT MANNHEIM[DE/DE]; DE
Inventors: ARMKNECHT, Frederik; DE
BOHLI, Jens-Matthias; DE
KARAME, Ghassan; DE
REUTER, Christian; DE
Agent: ULLRICH & NAUMANN; Schneidmuehlstrasse 21 69115 Heidelberg, DE
Priority Data:
14168694.916.05.2014EP
Title (EN) METHOD FOR PROVING RETRIEVABILITY OF INFORMATION
(FR) PROCÉDÉ DE PREUVE DE RÉCUPÉRABILITÉ D'INFORMATIONS
Abstract:
(EN) The present invention relates to a method for proving retrievability, 'POR', of information, said method being performed in a memory available to one or more computation devices, wherein credentials between a user device, a storing device and an auditing device between each pair of said devices are exchanged and used for communication between them, comprising the steps of a) Encoding the information to be stored on said storing device by said user device or said auditing device, b) Storing the encoded information on said storing device, c) Verifying the correctness of said stored information by the auditing device and using unpredictable random information d) Transmitting correctness information to the user device, said correctness information being secure and which are generated based on the result of said verification by the auditing device and e) Validating said correctness information by the user device for proving retrievability of said stored information and said unpredictable random information.
(FR) La présente invention concerne un procédé pour prouver la récupérabilité, 'POR ', d'informations ledit procédé étant mis en œuvre dans une mémoire disponible pour au moins un dispositif de calcul. Des justificatifs d'identité entre un dispositif utilisateur, un dispositif de mémorisation et un dispositif de vérification entre chaque paire desdits dispositifs sont échangées et utilisés pour une communication entre eux. Le procédé consiste a) à coder les informations à mémoriser sur ledit dispositif de mémorisation par ledit dispositif utilisateur ou ledit dispositif de vérification, b) à mémoriser les informations codées sur ledit dispositif de mémorisation, c) à vérifier l'exactitude desdites informations mémorisées au moyen du dispositif de vérification et à l'aide d'informations aléatoires imprévisibles, d) à transmettre les informations d'exactitude au dispositif utilisateur, lesdites informations d'exactitude étant sûres et étant générées en se basant sur le résultat de ladite vérification par le dispositif de vérification et e) à valider lesdites informations d'exactitude au moyen du dispositif utilisateur pour prouver la récupérabilité desdites informations mémorisées et desdites informations aléatoires imprévisibles.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)