Field initialized authentication system for protective security of electronic information networks

US4731841A · kind A · utility

Assignee

• Applied Information Technologies Research Center · US

Inventors

• Richard D. Rosen · Hilliard, US
• Robert B. McCown · Upper Arlington, US
• Matthew Fleming · Duvall, US

Key dates

• Filing date: Jun 16, 1986
• Grant date: Mar 15, 1988
• Expiry date: Jun 16, 2006

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L9/3271
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

An authentication system for electronic information networks having small hand-held portable authenticating devices which are remotely initialized and can use 4 bit microprocessors in a challenge-response security system and yet permit practical communication of the large numbers which are necessary for sufficient security.