ATE197656T1 - Blindunterschriftensysteme mit einer einzigen vorlage - Google Patents

Blindunterschriftensysteme mit einer einzigen vorlage

Info

Publication number
ATE197656T1
ATE197656T1 AT89905483T AT89905483T ATE197656T1 AT E197656 T1 ATE197656 T1 AT E197656T1 AT 89905483 T AT89905483 T AT 89905483T AT 89905483 T AT89905483 T AT 89905483T AT E197656 T1 ATE197656 T1 AT E197656T1
Authority
AT
Austria
Prior art keywords
signatures
untraceable
revealed
ensures
single template
Prior art date
Application number
AT89905483T
Other languages
English (en)
Inventor
David Chaum
Original Assignee
Digicash 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 Digicash Inc filed Critical Digicash Inc
Application granted granted Critical
Publication of ATE197656T1 publication Critical patent/ATE197656T1/de

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
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • 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
    • G06Q20/3825—Use of electronic signatures
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1016—Devices or methods for securing the PIN and other transaction-data, e.g. by encryption
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/302—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the integer factorization problem, e.g. RSA or quadratic sieve [QS] schemes
    • 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
    • H04L9/3257—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 using blind signatures
    • 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
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
AT89905483T 1988-03-16 1989-03-15 Blindunterschriftensysteme mit einer einzigen vorlage ATE197656T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16880288A 1988-03-16 1988-03-16
PCT/US1989/001061 WO1989008957A1 (en) 1988-03-16 1989-03-15 One-show blind signature systems

Publications (1)

Publication Number Publication Date
ATE197656T1 true ATE197656T1 (de) 2000-12-15

Family

ID=22612986

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89905483T ATE197656T1 (de) 1988-03-16 1989-03-15 Blindunterschriftensysteme mit einer einzigen vorlage

Country Status (6)

Country Link
EP (1) EP0407465B1 (de)
JP (1) JP3333503B2 (de)
AT (1) ATE197656T1 (de)
AU (1) AU3560989A (de)
DE (1) DE68929263T2 (de)
WO (1) WO1989008957A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69031614T2 (de) * 1990-01-29 1998-05-07 Security Techn Corp Wahlweise moderierte Transaktionssysteme
US5148479A (en) * 1991-03-20 1992-09-15 International Business Machines Corp. Authentication protocols in communication networks
NL9301348A (nl) * 1993-08-02 1995-03-01 Stefanus Alfonsus Brands Elektronisch betalingssysteem.
US5434919A (en) * 1994-01-11 1995-07-18 Chaum; David Compact endorsement signature systems
US5712913A (en) * 1994-02-08 1998-01-27 Digicash Incorporated Limited-traceability systems
US5901229A (en) * 1995-11-06 1999-05-04 Nippon Telegraph And Telephone Corp. Electronic cash implementing method using a trustee
GB2317790B (en) * 1996-09-26 1998-08-26 Richard Billingsley Improvements relating to electronic transactions
GB201806112D0 (en) * 2018-04-13 2018-05-30 Nchain Holdings Ltd Computer-implemented system and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264782A (en) * 1979-06-29 1981-04-28 International Business Machines Corporation Method and apparatus for transaction and identity verification
US4393269A (en) * 1981-01-29 1983-07-12 International Business Machines Corporation Method and apparatus incorporating a one-way sequence for transaction and identity verification
US4759063A (en) * 1983-08-22 1988-07-19 Chaum David L Blind signature systems
US4759064A (en) * 1985-10-07 1988-07-19 Chaum David L Blind unanticipated signature systems

Also Published As

Publication number Publication date
AU3560989A (en) 1989-10-05
EP0407465A4 (en) 1992-10-07
EP0407465B1 (de) 2000-11-15
DE68929263D1 (de) 2000-12-21
WO1989008957A1 (en) 1989-09-21
EP0407465A1 (de) 1991-01-16
JP3333503B2 (ja) 2002-10-15
JPH04500440A (ja) 1992-01-23
DE68929263T2 (de) 2001-07-12

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee