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1. WO2012063755 - DISTRIBUTED ARCHIVE SYSTEM, DATA ARCHIVE DEVICE, AND DATA RESTORING DEVICE

Publication Number WO/2012/063755
Publication Date 18.05.2012
International Application No. PCT/JP2011/075534
International Filing Date 07.11.2011
IPC
G06F 21/24 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
24by protecting data directly, e.g. by labelling
G06F 12/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
12Accessing, addressing or allocating within memory systems or architectures
H04L 9/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
08Key distribution
CPC
G06F 11/1076
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
11Error detection; Error correction; Monitoring
07Responding to the occurrence of a fault, e.g. fault tolerance
08Error detection or correction by redundancy in data representation, e.g. by using checking codes
10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
1076Parity data used in redundant arrays of independent storages, e.g. in RAID systems
G06F 11/1458
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
11Error detection; Error correction; Monitoring
07Responding to the occurrence of a fault, e.g. fault tolerance
14Error detection or correction of the data by redundancy in operation
1402Saving, restoring, recovering or retrying
1446Point-in-time backing up or restoration of persistent data
1458Management of the backup or restore process
G06F 16/134
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
13File access structures, e.g. distributed indices
134Distributed indices
G06F 16/21
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
21Design, administration or maintenance of databases
G06F 21/602
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
602Providing cryptographic facilities or services
G06F 21/6209
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
62Protecting access to data via a platform, e.g. using keys or access control rules
6209to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
Applicants
  • 株式会社デジタル・メディア総合研究所 Digital Media Research Institute, Inc. [JP]/[JP] (AllExceptUS)
  • 株式会社グロウビット GLOBIT co., ltd. [JP]/[JP] (AllExceptUS)
  • 申 吉浩 SHIN, Yoshihiro [JP]/[JP] (UsOnly)
Inventors
  • 申 吉浩 SHIN, Yoshihiro
Agents
  • 澤田 俊夫 SAWADA, Toshio
Priority Data
2010-24991708.11.2010JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) DISTRIBUTED ARCHIVE SYSTEM, DATA ARCHIVE DEVICE, AND DATA RESTORING DEVICE
(FR) SYSTÈME D'ARCHIVAGE RÉPARTI, DISPOSITIF D'ARCHIVAGE RÉPARTI ET DISPOSITIF DE RÉCUPÉRATION DE DONNÉES
(JA) 分散アーカイブシステム並びにデータアーカイブ装置及びデータ復元装置
Abstract
(EN)
Provided are a distributed archive and a data restoring method capable of achieving both high-speed processing and safety. A random number generated by a seed random number generator (443) is input to a key random number generator (445) as a seed. From among n storage media in total, (n-k+1) storage media are independently and randomly determined as archive destinations using the random numbers each generated by the key random number generator (445), for each data fragment obtained by dividing a data file of an archive source. Each time the data fragment is extracted, the data fragment is stored in the determined (n-k+1) storage media in an overlapping manner.
(FR)
L'invention concerne une archive répartie et un procédé de récupération de données capable d'obtenir à la fois un traitement à vitesse élevée et d'assurer la sécurité. Un nombre aléatoire généré par un générateur de germe de nombre aléatoire (443) est fourni en entrée à un générateur de nombre aléatoire de clé (445) en tant que germe. Parmi un total de n supports de stockage, (n-k+1) supports de stockage sont déterminés indépendamment et aléatoirement comme étant des destinations d'archivage à partir des nombres aléatoires ayant chacun été généré par le générateur de nombre aléatoire de clé (445), pour chaque fragment de données obtenu en divisant un fichier de données d'une source d'archivage. Chaque instant où le fragment de données est extrait, le fragment de données est stocké sur le support de stockage (n-k+1) déterminé de manière chevauchante.
(JA)
 高速な処理と安全性を両立させる分散アーカイブ及びデータ復元の方式を提供する。シード用乱数発生器443が生成する乱数を、シードとして鍵用乱数発生器445に入力し、アーカイブ元のデータファイルを分割して得られるデータ断片毎に、鍵用乱数発生器445が都度生成する乱数によりn個の全記憶媒体から(n-k+1)個のアーカイブ先の記憶媒体を独立かつランダムに決定し、決定した(n-k+1)個の記憶媒体にその都度取り出したデータ断片を重複記憶する。
Also published as
Latest bibliographic data on file with the International Bureau