SE0401841L - Device and method - Google Patents

Device and method

Info

Publication number
SE0401841L
SE0401841L SE0401841A SE0401841A SE0401841L SE 0401841 L SE0401841 L SE 0401841L SE 0401841 A SE0401841 A SE 0401841A SE 0401841 A SE0401841 A SE 0401841A SE 0401841 L SE0401841 L SE 0401841L
Authority
SE
Sweden
Prior art keywords
information
metadata
decryption
computer
protected objects
Prior art date
Application number
SE0401841A
Other languages
Swedish (sv)
Other versions
SE527925C2 (en
SE0401841D0 (en
Inventor
Kent Soederstroem
Original Assignee
Infinisec Holding Ab
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 Infinisec Holding Ab filed Critical Infinisec Holding Ab
Priority to SE0401841A priority Critical patent/SE527925C2/en
Publication of SE0401841D0 publication Critical patent/SE0401841D0/en
Priority to CN 200580030086 priority patent/CN101057433A/en
Priority to PCT/SE2005/001141 priority patent/WO2006006931A1/en
Publication of SE0401841L publication Critical patent/SE0401841L/en
Publication of SE527925C2 publication Critical patent/SE527925C2/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
    • G06F21/6209—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
    • 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
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES 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
    • H04L9/088—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
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Bioethics (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Storage Device Security (AREA)

Abstract

The invention concerns a method for the decryption of encrypted information stored in the form of computer records (20) in a database (10). Metadata is stored together with the information content of a computer record, whereby metadata controls the processing of information in the computer records (20) through information being limited by access rules that are defined by protected objects (16) intended for decryption, whereby the protected objects (16) are linked to metadata.
SE0401841A 2004-07-09 2004-07-09 Procedure for decryption and database of encrypted data information SE527925C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0401841A SE527925C2 (en) 2004-07-09 2004-07-09 Procedure for decryption and database of encrypted data information
CN 200580030086 CN101057433A (en) 2004-07-09 2005-07-08 Storing of metadata
PCT/SE2005/001141 WO2006006931A1 (en) 2004-07-09 2005-07-08 Storing of metadata

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0401841A SE527925C2 (en) 2004-07-09 2004-07-09 Procedure for decryption and database of encrypted data information

Publications (3)

Publication Number Publication Date
SE0401841D0 SE0401841D0 (en) 2004-07-09
SE0401841L true SE0401841L (en) 2006-01-10
SE527925C2 SE527925C2 (en) 2006-07-11

Family

ID=32867226

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0401841A SE527925C2 (en) 2004-07-09 2004-07-09 Procedure for decryption and database of encrypted data information

Country Status (3)

Country Link
CN (1) CN101057433A (en)
SE (1) SE527925C2 (en)
WO (1) WO2006006931A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101346734B1 (en) 2006-05-12 2014-01-03 삼성전자주식회사 Multi certificate revocation list support method and apparatus for digital rights management
US7904732B2 (en) * 2006-09-27 2011-03-08 Rocket Software, Inc. Encrypting and decrypting database records
CN101587479B (en) * 2008-06-26 2011-04-13 北京人大金仓信息技术股份有限公司 Database management system kernel oriented data encryption/decryption system and method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5661799A (en) * 1994-02-18 1997-08-26 Infosafe Systems, Inc. Apparatus and storage medium for decrypting information
US5598470A (en) * 1994-04-25 1997-01-28 International Business Machines Corporation Method and apparatus for enabling trial period use of software products: Method and apparatus for utilizing a decryption block
SE506853C2 (en) * 1996-06-20 1998-02-16 Anonymity Prot In Sweden Ab Method of data processing

Also Published As

Publication number Publication date
CN101057433A (en) 2007-10-17
WO2006006931A1 (en) 2006-01-19
SE527925C2 (en) 2006-07-11
SE0401841D0 (en) 2004-07-09

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Legal Events

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