Patent · US Active

Digital signing method, digital signing apparatus, portable information processing apparatus, digital signing system, and recording medium

US7861086B2 · kind B2 · utility

1Cited by
4References
24Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 2, 2005
Grant dateDec 28, 2010
Priority date
Expiry dateOct 9, 2028

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L9/3247
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A digital signing method in a digital signing apparatus that provides a digital signature to electronic data, including: inputting data to be signed with the digital signature; presenting attribute information of one or more signature keys; displaying said attribute information of said one or more signature keys presented to a user; creating signature data by using said inputted data and a signature key corresponding to said attribute information of signature key selected by said user from said attribute information of said one or more signature keys displayed; and saving signature data created or a signature file created based on said signature data in a storage unit.

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