DE68925584T2 - Blindunterschriftensysteme mit rückübertragung eines wertes - Google Patents
Blindunterschriftensysteme mit rückübertragung eines wertesInfo
- Publication number
- DE68925584T2 DE68925584T2 DE68925584T DE68925584T DE68925584T2 DE 68925584 T2 DE68925584 T2 DE 68925584T2 DE 68925584 T DE68925584 T DE 68925584T DE 68925584 T DE68925584 T DE 68925584T DE 68925584 T2 DE68925584 T2 DE 68925584T2
- Authority
- DE
- Germany
- Prior art keywords
- value
- signature
- signer
- payer
- difference
- 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
- G06Q20/22—Payment schemes or models
- G06Q20/29—Payment schemes or models characterised by micropayments
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/260,053 US4949380A (en) | 1988-10-20 | 1988-10-20 | Returned-value blind signature systems |
PCT/US1989/004662 WO1990004892A1 (en) | 1988-10-20 | 1989-10-18 | Returned-value blind signature systems |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68925584D1 DE68925584D1 (de) | 1996-03-14 |
DE68925584T2 true DE68925584T2 (de) | 1996-09-19 |
Family
ID=22987606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68925584T Expired - Fee Related DE68925584T2 (de) | 1988-10-20 | 1989-10-18 | Blindunterschriftensysteme mit rückübertragung eines wertes |
Country Status (7)
Country | Link |
---|---|
US (1) | US4949380A (de) |
EP (1) | EP0439512B1 (de) |
JP (1) | JPH04502989A (de) |
AT (1) | ATE133822T1 (de) |
AU (1) | AU4486689A (de) |
DE (1) | DE68925584T2 (de) |
WO (1) | WO1990004892A1 (de) |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5224162A (en) * | 1991-06-14 | 1993-06-29 | Nippon Telegraph And Telephone Corporation | Electronic cash system |
US5453601A (en) * | 1991-11-15 | 1995-09-26 | Citibank, N.A. | Electronic-monetary system |
US5983207A (en) | 1993-02-10 | 1999-11-09 | Turk; James J. | Electronic cash eliminating payment risk |
US6415271B1 (en) | 1993-02-10 | 2002-07-02 | Gm Network Limited | Electronic cash eliminating payment risk |
NL9301348A (nl) * | 1993-08-02 | 1995-03-01 | Stefanus Alfonsus Brands | Elektronisch betalingssysteem. |
JP3367675B2 (ja) * | 1993-12-16 | 2003-01-14 | オープン マーケット インコーポレイテッド | オープンネットワーク販売システム及び取引トランザクションのリアルタイムでの承認を行う方法 |
US5420926A (en) * | 1994-01-05 | 1995-05-30 | At&T Corp. | Anonymous credit card transactions |
US5434919A (en) * | 1994-01-11 | 1995-07-18 | Chaum; David | Compact endorsement signature systems |
AU703349B2 (en) * | 1994-02-04 | 1999-03-25 | Ic One, Inc. | Method and system for allocating and redeeming incentive credits |
US5712913A (en) * | 1994-02-08 | 1998-01-27 | Digicash Incorporated | Limited-traceability systems |
US5668878A (en) * | 1994-02-28 | 1997-09-16 | Brands; Stefanus Alfonsus | Secure cryptographic methods for electronic transfer of information |
US5604805A (en) * | 1994-02-28 | 1997-02-18 | Brands; Stefanus A. | Privacy-protected transfer of electronic information |
US5572590A (en) * | 1994-04-12 | 1996-11-05 | International Business Machines Corporation | Discrimination of malicious changes to digital information using multiple signatures |
US5799087A (en) * | 1994-04-28 | 1998-08-25 | Citibank, N.A. | Electronic-monetary system |
US6868408B1 (en) | 1994-04-28 | 2005-03-15 | Citibank, N.A. | Security systems and methods applicable to an electronic monetary system |
US5826241A (en) | 1994-09-16 | 1998-10-20 | First Virtual Holdings Incorporated | Computerized system for making payments and authenticating transactions over the internet |
US5715314A (en) | 1994-10-24 | 1998-02-03 | Open Market, Inc. | Network sales system |
GB9507885D0 (en) * | 1995-04-18 | 1995-05-31 | Hewlett Packard Co | Methods and apparatus for authenticating an originator of a message |
US5832460A (en) * | 1995-06-02 | 1998-11-03 | International Business Machines Corporation | Method and system for bill presentation and payment reconciliation |
US7272639B1 (en) | 1995-06-07 | 2007-09-18 | Soverain Software Llc | Internet server access control and monitoring systems |
US5794221A (en) | 1995-07-07 | 1998-08-11 | Egendorf; Andrew | Internet billing method |
US5768385A (en) * | 1995-08-29 | 1998-06-16 | Microsoft Corporation | Untraceable electronic cash |
US5638445A (en) * | 1995-09-19 | 1997-06-10 | Microsoft Corporation | Blind encryption |
US5774670A (en) * | 1995-10-06 | 1998-06-30 | Netscape Communications Corporation | Persistent client state in a hypertext transfer protocol based client-server system |
US5757917A (en) * | 1995-11-01 | 1998-05-26 | First Virtual Holdings Incorporated | Computerized payment system for purchasing goods and services on the internet |
EP0809912B1 (de) * | 1995-12-18 | 2001-10-17 | Koninklijke Philips Electronics N.V. | Röntgenstrahluntersuchungsvorrichtung eine bildaufnahmematrix mit korrektureinheit enthaltend |
CA2253920A1 (en) * | 1996-05-10 | 1997-12-04 | David M. Barcelou | Automated transaction machine |
US6945457B1 (en) | 1996-05-10 | 2005-09-20 | Transaction Holdings Ltd. L.L.C. | Automated transaction machine |
US5956400A (en) * | 1996-07-19 | 1999-09-21 | Digicash Incorporated | Partitioned information storage systems with controlled retrieval |
US6029150A (en) * | 1996-10-04 | 2000-02-22 | Certco, Llc | Payment and transactions in electronic commerce system |
GB9709135D0 (en) * | 1997-05-02 | 1997-06-25 | Certicom Corp | Two way authentication protocol |
US7222087B1 (en) | 1997-09-12 | 2007-05-22 | Amazon.Com, Inc. | Method and system for placing a purchase order via a communications network |
US5960411A (en) * | 1997-09-12 | 1999-09-28 | Amazon.Com, Inc. | Method and system for placing a purchase order via a communications network |
WO1999026207A1 (en) | 1997-11-19 | 1999-05-27 | Rsa Security Inc. | Digital coin tracing using trustee tokens |
US9900305B2 (en) | 1998-01-12 | 2018-02-20 | Soverain Ip, Llc | Internet server access control and monitoring systems |
US6108644A (en) * | 1998-02-19 | 2000-08-22 | At&T Corp. | System and method for electronic transactions |
EP1064611A1 (de) | 1998-03-24 | 2001-01-03 | Telcordia Technologies, Inc. | Verfahren zum benutzen einer telefonkarte für geschäftliche transaktionen |
RU2153191C2 (ru) | 1998-09-29 | 2000-07-20 | Закрытое акционерное общество "Алкорсофт" | Способ изготовления вслепую цифровой rsa-подписи и устройство для его реализации (варианты) |
RU2157001C2 (ru) | 1998-11-25 | 2000-09-27 | Закрытое акционерное общество "Алкорсофт" | Способ проведения платежей (варианты) |
US6959388B1 (en) * | 1999-10-25 | 2005-10-25 | At&T Corp. | Method for generating many-time restrictive blind signatures |
AU2001245754A1 (en) | 2000-03-17 | 2001-10-03 | Ebay, Inc. | Method and apparatus for facilitating online payment transactions in a network-based transaction facility using multiple payment instruments |
US7499875B1 (en) | 2000-03-17 | 2009-03-03 | Ebay Inc. | Method and apparatus for facilitating online payment transactions in a network-based transaction facility using multiple payment instruments |
US8706618B2 (en) | 2005-09-29 | 2014-04-22 | Ebay Inc. | Release of funds based on criteria |
US6871276B1 (en) * | 2000-04-05 | 2005-03-22 | Microsoft Corporation | Controlled-content recoverable blinded certificates |
US7257581B1 (en) * | 2000-08-04 | 2007-08-14 | Guardian Networks, Llc | Storage, management and distribution of consumer information |
US8566248B1 (en) | 2000-08-04 | 2013-10-22 | Grdn. Net Solutions, Llc | Initiation of an information transaction over a network via a wireless device |
US9928508B2 (en) * | 2000-08-04 | 2018-03-27 | Intellectual Ventures I Llc | Single sign-on for access to a central data repository |
EP1205889A1 (de) * | 2000-11-10 | 2002-05-15 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Geld wiedergabe in einem Elektronischen Zahlungssystem |
US20020198798A1 (en) * | 2001-04-03 | 2002-12-26 | Bottomline Technologies, Inc. | Modular business transactions platform |
US20020198829A1 (en) * | 2001-04-03 | 2002-12-26 | Bottomline Technologies, Inc. | Modular business transactions platform |
US20030195857A1 (en) * | 2002-04-10 | 2003-10-16 | Alessandro Acquisti | Communication technique to verify and send information anonymously among many parties |
US7793095B2 (en) * | 2002-06-06 | 2010-09-07 | Hardt Dick C | Distributed hierarchical identity management |
US7551737B2 (en) * | 2003-03-31 | 2009-06-23 | International Business Machines Corporation | Cryptographic keys using random numbers instead of random primes |
DE602004006373T2 (de) * | 2004-03-02 | 2008-01-17 | France Telecom | Verfahren und Vorrichtungen zur Erstellung fairer Blindunterschriften |
US8504704B2 (en) * | 2004-06-16 | 2013-08-06 | Dormarke Assets Limited Liability Company | Distributed contact information management |
US8527752B2 (en) * | 2004-06-16 | 2013-09-03 | Dormarke Assets Limited Liability | Graduated authentication in an identity management system |
US9245266B2 (en) * | 2004-06-16 | 2016-01-26 | Callahan Cellular L.L.C. | Auditable privacy policies in a distributed hierarchical identity management system |
EP2026267A1 (de) * | 2007-07-31 | 2009-02-18 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Ausstellung elektronischer Belege |
US9177313B1 (en) | 2007-10-18 | 2015-11-03 | Jpmorgan Chase Bank, N.A. | System and method for issuing, circulating and trading financial instruments with smart features |
US8185476B2 (en) * | 2008-01-07 | 2012-05-22 | Microsoft Corporation | Digital rights management system protecting consumer privacy |
EP2128828A1 (de) * | 2008-05-27 | 2009-12-02 | Prof. Bartmann Information Systems GmbH | Verfahren und System zur sicheren Zuordnung eines Privilegs |
US10148285B1 (en) | 2012-07-25 | 2018-12-04 | Erich Schmitt | Abstraction and de-abstraction of a digital data stream |
US9084218B2 (en) | 2013-05-23 | 2015-07-14 | Pitney Bowes Inc. | Location-based service provider method and system having a user controlled location privacy mechanism |
US10795858B1 (en) | 2014-02-18 | 2020-10-06 | Erich Schmitt | Universal abstraction and de-abstraction of a digital data stream |
US10956894B2 (en) | 2014-05-22 | 2021-03-23 | Paypal, Inc. | Offline bill splitting system |
US10643203B2 (en) | 2016-04-12 | 2020-05-05 | Digicash Pty Ltd. | Secure transaction controller for value token exchange systems |
US11526859B1 (en) | 2019-11-12 | 2022-12-13 | Bottomline Technologies, Sarl | Cash flow forecasting using a bottoms-up machine learning approach |
US11532040B2 (en) | 2019-11-12 | 2022-12-20 | Bottomline Technologies Sarl | International cash management software using machine learning |
US11704671B2 (en) | 2020-04-02 | 2023-07-18 | Bottomline Technologies Limited | Financial messaging transformation-as-a-service |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458109A (en) * | 1982-02-05 | 1984-07-03 | Siemens Corporation | Method and apparatus providing registered mail features in an electronic communication system |
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 |
-
1988
- 1988-10-20 US US07/260,053 patent/US4949380A/en not_active Expired - Lifetime
-
1989
- 1989-10-18 EP EP89912051A patent/EP0439512B1/de not_active Expired - Lifetime
- 1989-10-18 AU AU44866/89A patent/AU4486689A/en not_active Abandoned
- 1989-10-18 WO PCT/US1989/004662 patent/WO1990004892A1/en active IP Right Grant
- 1989-10-18 DE DE68925584T patent/DE68925584T2/de not_active Expired - Fee Related
- 1989-10-18 AT AT89912051T patent/ATE133822T1/de not_active IP Right Cessation
- 1989-10-18 JP JP1511301A patent/JPH04502989A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
WO1990004892A1 (en) | 1990-05-03 |
ATE133822T1 (de) | 1996-02-15 |
JPH04502989A (ja) | 1992-05-28 |
EP0439512B1 (de) | 1996-01-31 |
AU4486689A (en) | 1990-05-14 |
US4949380A (en) | 1990-08-14 |
DE68925584D1 (de) | 1996-03-14 |
EP0439512A1 (de) | 1991-08-07 |
EP0439512A4 (en) | 1993-02-24 |
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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: ECASH TECHNOLOGIES, INC., BOTHELL, WASH., US |
|
8339 | Ceased/non-payment of the annual fee |