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AU2001295208A1 - Encryption systems and methods for identifying and coalescing identical objects encrypted with different keys - Google Patents

Encryption systems and methods for identifying and coalescing identical objects encrypted with different keys

Info

Publication number
AU2001295208A1
AU2001295208A1 AU2001295208A AU9520801A AU2001295208A1 AU 2001295208 A1 AU2001295208 A1 AU 2001295208A1 AU 2001295208 A AU2001295208 A AU 2001295208A AU 9520801 A AU9520801 A AU 9520801A AU 2001295208 A1 AU2001295208 A1 AU 2001295208A1
Authority
AU
Australia
Prior art keywords
encryption
methods
keys
encryptable
objects
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001295208A
Inventor
William J. Bolosky
John R. Douceur
Marvin M. Theimer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microsoft Corp
Original Assignee
Microsoft Corp
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 Microsoft Corp filed Critical Microsoft Corp
Publication of AU2001295208A1 publication Critical patent/AU2001295208A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L9/3236—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 using cryptographic hash functions
    • 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
    • H04L9/3247—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 involving digital signatures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99953—Recoverability
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99955—Archiving or backup

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

Cryptographic protocols and methods of employing the same are described. The described protocols advantageously enable two or more identical encryptable objects that are coded for encryption with different keys to be identified as identical without access to either the unencrypted objects or the keys that are used in the encryption process. Additionally, the protocols enable two or more identical encryptable objects to be processed with different encryption keys, yet be stored in a manner so that the total required storage space is proportional to the space that is required to store a single encryptable object, plus a constant amount for each distinct encryption key. In various embodiments, the encryptable objects comprise files and the cryptographic protocols enable encrypted files to be used in connection with single instance store (SIS) systems.
AU2001295208A 2000-05-05 2001-04-05 Encryption systems and methods for identifying and coalescing identical objects encrypted with different keys Abandoned AU2001295208A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/565,821 US6983365B1 (en) 2000-05-05 2000-05-05 Encryption systems and methods for identifying and coalescing identical objects encrypted with different keys
US09/565,821 2000-05-05
PCT/US2001/040462 WO2001086396A2 (en) 2000-05-05 2001-04-05 Encryption systems and methods for identifying and coalescing identical objects encrypted with different keys

Publications (1)

Publication Number Publication Date
AU2001295208A1 true AU2001295208A1 (en) 2001-11-20

Family

ID=24260237

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001295208A Abandoned AU2001295208A1 (en) 2000-05-05 2001-04-05 Encryption systems and methods for identifying and coalescing identical objects encrypted with different keys

Country Status (6)

Country Link
US (6) US6983365B1 (en)
EP (1) EP1299971B1 (en)
AT (1) ATE487297T1 (en)
AU (1) AU2001295208A1 (en)
DE (1) DE60143395D1 (en)
WO (1) WO2001086396A2 (en)

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Also Published As

Publication number Publication date
US20040221160A1 (en) 2004-11-04
DE60143395D1 (en) 2010-12-16
EP1299971B1 (en) 2010-11-03
US20040215962A1 (en) 2004-10-28
WO2001086396A3 (en) 2003-01-30
US7266689B2 (en) 2007-09-04
ATE487297T1 (en) 2010-11-15
US20040221159A1 (en) 2004-11-04
US20050235146A1 (en) 2005-10-20
WO2001086396A2 (en) 2001-11-15
US7574598B2 (en) 2009-08-11
US7437555B2 (en) 2008-10-14
US7159110B2 (en) 2007-01-02
US20050229012A1 (en) 2005-10-13
US6983365B1 (en) 2006-01-03
US7779253B2 (en) 2010-08-17
EP1299971A2 (en) 2003-04-09

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