DE68929263T2 - Blindunterschriftensysteme mit einer einzigen vorlage - Google Patents
Blindunterschriftensysteme mit einer einzigen vorlageInfo
- Publication number
- DE68929263T2 DE68929263T2 DE68929263T DE68929263T DE68929263T2 DE 68929263 T2 DE68929263 T2 DE 68929263T2 DE 68929263 T DE68929263 T DE 68929263T DE 68929263 T DE68929263 T DE 68929263T DE 68929263 T2 DE68929263 T2 DE 68929263T2
- Authority
- DE
- Germany
- Prior art keywords
- signatures
- untraceable
- revealed
- ensures
- single template
- 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.)
- Expired - Fee Related
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)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Detergent Compositions (AREA)
- Image Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (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 (2)
Publication Number | Publication Date |
---|---|
DE68929263D1 DE68929263D1 (de) | 2000-12-21 |
DE68929263T2 true DE68929263T2 (de) | 2001-07-12 |
Family
ID=22612986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68929263T Expired - Fee Related DE68929263T2 (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 |
---|---|---|---|---|
ATE159603T1 (de) * | 1990-01-29 | 1997-11-15 | 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 |
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 |
-
1989
- 1989-03-15 DE DE68929263T patent/DE68929263T2/de not_active Expired - Fee Related
- 1989-03-15 AT AT89905483T patent/ATE197656T1/de not_active IP Right Cessation
- 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 EP EP89905483A patent/EP0407465B1/de not_active Expired - Lifetime
- 1989-03-15 AU AU35609/89A patent/AU3560989A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP0407465B1 (de) | 2000-11-15 |
JPH04500440A (ja) | 1992-01-23 |
JP3333503B2 (ja) | 2002-10-15 |
DE68929263D1 (de) | 2000-12-21 |
ATE197656T1 (de) | 2000-12-15 |
AU3560989A (en) | 1989-10-05 |
WO1989008957A1 (en) | 1989-09-21 |
EP0407465A1 (de) | 1991-01-16 |
EP0407465A4 (en) | 1992-10-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE133822T1 (de) | Blindunterschriftensysteme mit rückübertragung eines wertes | |
DE3685186D1 (de) | Blindsignatursysteme mit unvorhergesehenen signaturen. | |
MX9300091A (es) | Terminal de tarjeta de datos con lector de caracter realizados y captura de firma. | |
EP0780808A3 (de) | System und Verfahren zur Wiederherstellung im Falle einer Katastrophe in einem offenen Zählsystem | |
DE60029455D1 (de) | Elektronisches geld, zugehörige elektronische börse und diese anwendende elektronische bezahlungssysteme | |
DK0628408T3 (da) | Sikkerhedspapir med farvemærke | |
DE59806201D1 (de) | Sicherheits- und/oder wertdokument | |
ATE197656T1 (de) | Blindunterschriftensysteme mit einer einzigen vorlage | |
US2693909A (en) | Accounting method and article | |
BR9508206A (pt) | Arranjo estrutural que possui um efeito de difração ótica | |
EP0365018A3 (en) | Identity card and its production method | |
JPS533045A (en) | Transaction processing system | |
Oberschelp | On the Craig-Lyndon interpolation theorem1 | |
JPS58111130A (ja) | 磁気記録媒体 | |
JPS5359308A (en) | Information recording control system | |
Khol | Brazil: Privatization Of Celma Postponed | |
CN109190445A (zh) | 基于多模态生物识别技术在社保体系下的应用方法和系统 | |
Neagle | US Eximbank Supports $80.75 Million In Credit To Mexico | |
JPS5730076A (en) | Forming system of transaction request slip | |
Holmes | Implementing electronic document management on a major nuclear design and build project | |
JPS5211741A (en) | Individual certification system | |
Books | Type of publication: Idiap-RR Citation: breuel-93.05 Number: Idiap-RR-09-1993 Year: 1993 Institution: IDIAP | |
FR2274089A1 (fr) | Procede de controle anti-fraude pour la justification de l'identite d'une personne physique ou morale | |
Cull | Table-automata/finite co-finite languages | |
Neagle | Venezuelan Government Threatens Debt Payment Moratorium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: INFOSPACE, INC., BELLEVUE, WASH., US |
|
8339 | Ceased/non-payment of the annual fee |