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1. WO2015173434 - METHOD FOR PROVING RETRIEVABILITY OF INFORMATION

Publication Number WO/2015/173434
Publication Date 19.11.2015
International Application No. PCT/EP2015/060917
International Filing Date 18.05.2015
IPC
G06F 21/64 2013.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
64Protecting data integrity, e.g. using checksums, certificates or signatures
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
G06F 3/06 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
06Digital input from, or digital output to, record carriers
CPC
G06F 21/645
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
64Protecting data integrity, e.g. using checksums, certificates or signatures
645using a third party
G06F 2221/2101
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
2101Auditing as a secondary aspect
G06F 2221/2115
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
2115Third party
H04L 63/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
10for controlling access to network resources
H04L 63/123
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
12Applying verification of the received information
123received data contents, e.g. message integrity
Applicants
  • NEC EUROPE LTD. [DE]/[DE]
  • UNIVERSITÄT MANNHEIM [DE]/[DE]
Inventors
  • ARMKNECHT, Frederik
  • BOHLI, Jens-Matthias
  • KARAME, Ghassan
  • REUTER, Christian
Agents
  • ULLRICH & NAUMANN
Priority Data
14168694.916.05.2014EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
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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Latest bibliographic data on file with the International Bureau