CA2151590A1 - Method of Extending the Validity of a Cryptographic Certificate - Google Patents

Method of Extending the Validity of a Cryptographic Certificate

Info

Publication number
CA2151590A1
CA2151590A1 CA2151590A CA2151590A CA2151590A1 CA 2151590 A1 CA2151590 A1 CA 2151590A1 CA 2151590 A CA2151590 A CA 2151590A CA 2151590 A CA2151590 A CA 2151590A CA 2151590 A1 CA2151590 A1 CA 2151590A1
Authority
CA
Canada
Prior art keywords
certificate
original
document
function
validity
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.)
Granted
Application number
CA2151590A
Other languages
French (fr)
Other versions
CA2151590C (en
Inventor
Stuart Alan Haber
Wakefield Scott Stornetta Jr.
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.)
Iconectiv LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2151590A1 publication Critical patent/CA2151590A1/en
Application granted granted Critical
Publication of CA2151590C publication Critical patent/CA2151590C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3821—Electronic credentials
    • G06Q20/38215—Use of certificates or encrypted proofs of transaction rights
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
    • 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
    • H04L9/3263—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • 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

Abstract

A cryptographic certificate attesting to the authenticity of the original document elements will lose its validity when the cryptographic function underlying the certifying scheme is compromised. The present invention extends the reliability of such a certificate by subjecting the combination of the original certificate and the digital representation of the document to a scheme based on a less vulnerable function using the steps of: obtaining the original document (11); applying the function to the document to create the original certificate (13); combining the original document and the certificate (15); and, applying another function to the combination to create an extended certificate (17).
CA002151590A 1992-12-21 1993-11-17 Method of extending the validity of a cryptographic certificate Expired - Lifetime CA2151590C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/992,883 US5373561A (en) 1992-12-21 1992-12-21 Method of extending the validity of a cryptographic certificate
US992,883 1992-12-21

Publications (2)

Publication Number Publication Date
CA2151590A1 true CA2151590A1 (en) 1994-07-07
CA2151590C CA2151590C (en) 1998-05-26

Family

ID=25538851

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002151590A Expired - Lifetime CA2151590C (en) 1992-12-21 1993-11-17 Method of extending the validity of a cryptographic certificate

Country Status (7)

Country Link
US (1) US5373561A (en)
EP (1) EP0676109B1 (en)
JP (1) JPH08504965A (en)
AU (1) AU670166B2 (en)
CA (1) CA2151590C (en)
DE (1) DE69333068T2 (en)
WO (1) WO1994015421A1 (en)

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Also Published As

Publication number Publication date
EP0676109A1 (en) 1995-10-11
CA2151590C (en) 1998-05-26
US5373561A (en) 1994-12-13
AU5670694A (en) 1994-07-19
EP0676109B1 (en) 2003-06-25
DE69333068D1 (en) 2003-07-31
EP0676109A4 (en) 1999-11-17
JPH08504965A (en) 1996-05-28
AU670166B2 (en) 1996-07-04
DE69333068T2 (en) 2004-05-06
WO1994015421A1 (en) 1994-07-07

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