Patent · US Active

Efficient partially spendable e-cash

US11651354B2 · kind B2 · utility

0Cited by

6References

25Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Marcel Medwed · Graz, AT
Mario Lamberger · Graz, AT

Key dates

Filing date	Sep 11, 2019
Grant date	May 16, 2023
Priority date	—
Expiry date	Mar 13, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06Q20/383
WIPO fieldIT methods for management
WIPO sectorElectrical engineering

Abstract

A method for managing an anonymous e-cash transaction includes receiving a request to withdraw a payment coin, generating a combination of random attributes for the payment coin, creating the payment coin based on the combination of attributes, and issuing the payment coin in exchange for a first asset. Each attribute of the combination of attributes may represent a different portion of a total value of the payment coin. A partially spent value of the payment coin may be based on a revealed subset of the combination of attributes. The method further includes

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.