SG11201803041RA - File encrypting apparatus, file decrypting apparatus, system and program - Google Patents

File encrypting apparatus, file decrypting apparatus, system and program

Info

Publication number
SG11201803041RA
SG11201803041RA SG11201803041RA SG11201803041RA SG11201803041RA SG 11201803041R A SG11201803041R A SG 11201803041RA SG 11201803041R A SG11201803041R A SG 11201803041RA SG 11201803041R A SG11201803041R A SG 11201803041RA SG 11201803041R A SG11201803041R A SG 11201803041RA
Authority
SG
Singapore
Prior art keywords
file
program
decrypting
encrypting
encrypting apparatus
Prior art date
Application number
SG11201803041RA
Inventor
Toshio Dogu
Noriyuki Takahashi
Takuya Matsumoto
Original Assignee
Finalcode Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Finalcode Inc filed Critical Finalcode Inc
Publication of SG11201803041RA publication Critical patent/SG11201803041RA/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
SG11201803041RA 2015-10-14 2015-10-14 File encrypting apparatus, file decrypting apparatus, system and program SG11201803041RA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/079099 WO2017064780A1 (en) 2015-10-14 2015-10-14 File encryption device, file decryption device, system, and program

Publications (1)

Publication Number Publication Date
SG11201803041RA true SG11201803041RA (en) 2018-05-30

Family

ID=58043328

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201803041RA SG11201803041RA (en) 2015-10-14 2015-10-14 File encrypting apparatus, file decrypting apparatus, system and program

Country Status (6)

Country Link
US (1) US20180285583A1 (en)
EP (1) EP3386144B1 (en)
JP (1) JP6082130B1 (en)
SG (1) SG11201803041RA (en)
TW (1) TWI622895B (en)
WO (1) WO2017064780A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11784793B2 (en) * 2016-07-29 2023-10-10 Permanent Privacy Ltd. Applications in connection with secure encryption
US11222162B2 (en) * 2017-09-29 2022-01-11 Dropbox, Inc. Managing content item collections
JP7012927B2 (en) * 2018-03-28 2022-01-31 東芝デジタルエンジニアリング株式会社 File management methods, systems, terminals and programs
JP6464544B1 (en) * 2018-06-05 2019-02-06 デジタルア−ツ株式会社 Information processing apparatus, information processing method, information processing program, and information processing system
US10891391B2 (en) * 2018-08-29 2021-01-12 International Business Machines Corporation Remote file storage with multiple access levels
JP6932157B2 (en) * 2019-06-27 2021-09-08 デジタルア−ツ株式会社 Information processing equipment, information processing methods, and information processing programs
CN113553611A (en) * 2020-04-26 2021-10-26 中国电信股份有限公司 File encryption storage method and system, user terminal, cloud platform and storage medium
US20230274014A1 (en) * 2020-06-11 2023-08-31 Nec Corporation Management apparatus, control method, computer readable medium, and access control system
CN115550058B (en) * 2022-11-21 2023-03-10 卓望数码技术（深圳）有限公司 Shared file transparent encryption method and system
CN115529194B (en) * 2022-11-28 2023-03-10 中国人民解放军国防科技大学 Data management method, system, equipment and storage medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007280180A (en) * 2006-04-10 2007-10-25 Fuji Xerox Co Ltd Electronic document
US8656159B1 (en) * 2007-10-11 2014-02-18 Adobe Systems Incorporated Versioning of modifiable encrypted documents
US8549278B2 (en) * 2007-10-20 2013-10-01 Blackout, Inc. Rights management services-based file encryption system and method
US8364984B2 (en) * 2009-03-13 2013-01-29 Microsoft Corporation Portable secure data files
EP2575287A1 (en) * 2011-09-28 2013-04-03 Alcatel Lucent Method for publishing content over a communication network
US8751800B1 (en) * 2011-12-12 2014-06-10 Google Inc. DRM provider interoperability
US20140281516A1 (en) * 2013-03-12 2014-09-18 Commvault Systems, Inc. Automatic file decryption
US9203612B1 (en) * 2014-06-02 2015-12-01 Atlanta DTH, Inc. Systems and methods for controlling media distribution

Also Published As

Publication number Publication date
EP3386144B1 (en) 2021-01-13
JPWO2017064780A1 (en) 2017-10-19
US20180285583A1 (en) 2018-10-04
JP6082130B1 (en) 2017-02-15
EP3386144A1 (en) 2018-10-10
TWI622895B (en) 2018-05-01
EP3386144A4 (en) 2019-08-14
WO2017064780A1 (en) 2017-04-20
TW201730807A (en) 2017-09-01

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