Untraceable electronic cash
US5768385A · kind A · utility
187Cited by
9References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1995 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/1016
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
An electronic cash protocol including the steps of using a one-way function f.sub.1 (x) to generate an image f.sub.1 (x.sub.1) from a preimage x.sub.1 ; sending the image f.sub.1 (x.sub.1) in an unblinded form to a second party; and receiving from the second party a note including a digital signature, wherein the note represents a commitment by the second party to credit a predetermined amount of money to a first presenter of the preimage x.sub.1 to the second party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.