Patent · US Expired

Authenticating without opening electronic mail

US7523496B2 · kind B2 · utility

0Cited by
4References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 31, 2001
Grant dateApr 21, 2009
Priority date
Expiry dateApr 5, 2026

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L63/08
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A method for enabling the recipient of electronic mail (e-mail) to authenticate the originator of the e-mail without opening the e-mail, so that e-mail that carries a computer virus which activates upon opening the e-mail may be rejected. The originator and the recipient agree beforehand on a privately held authentication code, which is carried in an open field of the e-mail, i.e., carried in a field that is visible to an agent of the recipient without opening the e-mail.

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