WO2002008865A3 - Transparent-coin electronic money system - Google Patents

Transparent-coin electronic money system Download PDF

Info

Publication number
WO2002008865A3
WO2002008865A3 PCT/US2001/023264 US0123264W WO0208865A3 WO 2002008865 A3 WO2002008865 A3 WO 2002008865A3 US 0123264 W US0123264 W US 0123264W WO 0208865 A3 WO0208865 A3 WO 0208865A3
Authority
WO
WIPO (PCT)
Prior art keywords
value
intermediary
transparent
electronic money
money system
Prior art date
Application number
PCT/US2001/023264
Other languages
French (fr)
Other versions
WO2002008865A2 (en
Inventor
David Chaum
Original Assignee
David Chaum
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 David Chaum filed Critical David Chaum
Priority to AU2001280735A priority Critical patent/AU2001280735A1/en
Publication of WO2002008865A2 publication Critical patent/WO2002008865A2/en
Publication of WO2002008865A3 publication Critical patent/WO2002008865A3/en

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

Abstract

Digital transaction systems are disclosed that allow, in some exemplary embodiments, the transfer of value from at least one party to at least another party through one of plural intermediate parties. During the transactions between an intermediary and another party to the system, the intermediary can change the way the value held is denominated without revealing whether such a transformation has actually taken place. In some examples, the intermediary may split an 'electronic coin' of one value into two, each having half that value or the intermediary can optionally combine two tokens of value into single token of twice the value. The intermediary would be able to choose, however, whether or not the value was in fact split/combined or the transaction was dummy and this choice would be hidden from the other parties.
PCT/US2001/023264 2000-07-24 2001-07-24 Transparent-coin electronic money system WO2002008865A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001280735A AU2001280735A1 (en) 2000-07-24 2001-07-24 Transparent-coin electronic money system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22026500P 2000-07-24 2000-07-24
US60/220,265 2000-07-24

Publications (2)

Publication Number Publication Date
WO2002008865A2 WO2002008865A2 (en) 2002-01-31
WO2002008865A3 true WO2002008865A3 (en) 2002-06-13

Family

ID=22822820

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/023264 WO2002008865A2 (en) 2000-07-24 2001-07-24 Transparent-coin electronic money system

Country Status (2)

Country Link
AU (1) AU2001280735A1 (en)
WO (1) WO2002008865A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8489063B2 (en) 2001-10-24 2013-07-16 Sipco, Llc Systems and methods for providing emergency messages to a mobile device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5839119A (en) * 1996-09-27 1998-11-17 Xerox Corporation Method of electronic payments that prevents double-spending
US6029150A (en) * 1996-10-04 2000-02-22 Certco, Llc Payment and transactions in electronic commerce system
WO2000042733A1 (en) * 1999-01-15 2000-07-20 Certicom Corp. Method and apparatus for masking cryptographic operations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5839119A (en) * 1996-09-27 1998-11-17 Xerox Corporation Method of electronic payments that prevents double-spending
US6029150A (en) * 1996-10-04 2000-02-22 Certco, Llc Payment and transactions in electronic commerce system
WO2000042733A1 (en) * 1999-01-15 2000-07-20 Certicom Corp. Method and apparatus for masking cryptographic operations

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WORLD REPORTER [online] BOYES: "Kohlgate", XP002906553, retrieved from 09101658 accession no. Dialog *
TIMES, 12 January 2000 (2000-01-12) *

Also Published As

Publication number Publication date
WO2002008865A2 (en) 2002-01-31
AU2001280735A1 (en) 2002-02-05

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