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WO2004068264A3 - System and method for creating electronic signatures - Google Patents

System and method for creating electronic signatures Download PDF

Info

Publication number
WO2004068264A3
WO2004068264A3 PCT/IB2004/000249 IB2004000249W WO2004068264A3 WO 2004068264 A3 WO2004068264 A3 WO 2004068264A3 IB 2004000249 W IB2004000249 W IB 2004000249W WO 2004068264 A3 WO2004068264 A3 WO 2004068264A3
Authority
WO
WIPO (PCT)
Prior art keywords
signature
unique
server
sequence
representation
Prior art date
Application number
PCT/IB2004/000249
Other languages
French (fr)
Other versions
WO2004068264A2 (en
Inventor
Mart Saarepera
Ahto Buldas
Original Assignee
Linuxprobe Co
Mart Saarepera
Ahto Buldas
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 Linuxprobe Co, Mart Saarepera, Ahto Buldas filed Critical Linuxprobe Co
Publication of WO2004068264A2 publication Critical patent/WO2004068264A2/en
Publication of WO2004068264A3 publication Critical patent/WO2004068264A3/en

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
    • H04L9/3247—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
    • 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
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
    • 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
    • H04L2209/30—Compression, e.g. Merkle-Damgard construction
    • 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
    • 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
    • H04L2209/76—Proxy, i.e. using intermediary entity to perform cryptographic operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

A system and method for generating electronic signatures is provided. A first server receives a digital representation of a document or other content from a workstation. The first server authenticates the identity of the entity seeking to electronically sign the document or other content and generates a unique first signature statement based on the contents of the document and the identity of the signing entity. The first server adds the unique signature statement to a sequence of such statements and at some time thereafter calculates a representation of the sequence of statements by performing a hash function on the sequence. The first server sends the unique representation to at least two second servers, which generate a verifiable cryptographic signature corresponding to the unique representation, and transmits the signature to the first server. Lastly, the first server generates an electronic signature based on the unique signature statement, the sequence of unique signature statements, and the cryptographic signature from the at least two second servers.
PCT/IB2004/000249 2003-01-31 2004-01-30 System and method for creating electronic signatures WO2004068264A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44412603P 2003-01-31 2003-01-31
US60/444,126 2003-01-31

Publications (2)

Publication Number Publication Date
WO2004068264A2 WO2004068264A2 (en) 2004-08-12
WO2004068264A3 true WO2004068264A3 (en) 2004-12-29

Family

ID=32825399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/000249 WO2004068264A2 (en) 2003-01-31 2004-01-30 System and method for creating electronic signatures

Country Status (1)

Country Link
WO (1) WO2004068264A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7698557B2 (en) * 2003-12-22 2010-04-13 Guardtime As System and method for generating a digital certificate
SG186515A1 (en) * 2011-06-30 2013-01-30 Trusted Hub Ltd Method and system for digitally signing a document
CN110881048B (en) * 2019-12-16 2021-11-09 苏宁云计算有限公司 Safety communication method and device based on identity authentication

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003000A1 (en) * 1990-08-02 1992-02-20 Bell Communications Research, Inc. Method for secure time-stamping of digital documents

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003000A1 (en) * 1990-08-02 1992-02-20 Bell Communications Research, Inc. Method for secure time-stamping of digital documents

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ASOKAN N ET AL: "SERVER-SUPPORTED SIGNATURES", PROCEEDINGS OF THE EUROPEAN SYMPOSIUM ON RESEARCH IN COMPUTER SECURITY (ESORICS), SPRINGER VERLAG, BERLIN, DE, September 1996 (1996-09-01), pages 131 - 143, XP000972234 *
SCHNEIER B: "APPLIED CRYPTOGRAPHY. PROTOCOLS, ALGORITHMS, AND SOURCE CODE IN C, PASSAGE", APPLIED CRYPTOGRAPHY. PROTOCOLS, ALGORITHMS, AND SOURCE CODE IN C, NEW YORK, JOHN WILEY & SONS, US, 1996, pages 39 - 40, XP002299789, ISBN: 0-471-11709-9 *

Also Published As

Publication number Publication date
WO2004068264A2 (en) 2004-08-12

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