ATE197656T1 - Blindunterschriftensysteme mit einer einzigen vorlage - Google Patents
Blindunterschriftensysteme mit einer einzigen vorlageInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Accounting & Taxation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Business, Economics & Management (AREA)
- Strategic Management (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Finance (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Collating Specific Patterns (AREA)
- Facsimile Transmission Control (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Image Processing (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Detergent Compositions (AREA)
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)
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)
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 |
US4759064A (en) | 1985-10-07 | 1988-07-19 | Chaum David L | Blind unanticipated signature systems |
US4759063A (en) * | 1983-08-22 | 1988-07-19 | Chaum David L | Blind signature systems |
-
1989
- 1989-03-15 WO PCT/US1989/001061 patent/WO1989008957A1/en active IP Right Grant
- 1989-03-15 JP JP50520989A patent/JP3333503B2/ja not_active Expired - Fee Related
- 1989-03-15 AU AU35609/89A patent/AU3560989A/en not_active Abandoned
- 1989-03-15 AT AT89905483T patent/ATE197656T1/de not_active IP Right Cessation
- 1989-03-15 EP EP89905483A patent/EP0407465B1/de not_active Expired - Lifetime
- 1989-03-15 DE DE68929263T patent/DE68929263T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU3560989A (en) | 1989-10-05 |
EP0407465A1 (de) | 1991-01-16 |
EP0407465A4 (en) | 1992-10-07 |
JPH04500440A (ja) | 1992-01-23 |
DE68929263D1 (de) | 2000-12-21 |
JP3333503B2 (ja) | 2002-10-15 |
DE68929263T2 (de) | 2001-07-12 |
EP0407465B1 (de) | 2000-11-15 |
WO1989008957A1 (en) | 1989-09-21 |
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Books | Type of publication: Idiap-RR Citation: breuel-93.05 Number: Idiap-RR-09-1993 Year: 1993 Institution: IDIAP |
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 |