Accession Number : AD0775150

Title :   Computer Access Utilizing Magnetic Cards with Modifiable Codes,

Corporate Author : ELECTRONIC SYSTEMS DIV L G HANSCOM FIELD MASS

Personal Author(s) : Masson,Arthur L. ; Cobb,Charles G. , III

Report Date : JAN 1974

Pagination or Media Count : 54

Abstract : The report is a feasibility study of a technique using a one-time password on a magnetic card as a means of user identification for computer terminal access. A magnetic card reader/recorder was interfaced with a PDP-11/20 computer to provide a demonstration model. Interface logic diagrams and detailed description of the software used in the demonstration model are included. A method is shown for calculating the size of the major elements of the software required for implementation in any computer system. The report outlines some requirements of computer operation system in which identification feature is eventually used. (Author)

Descriptors :   *COMPUTER PROGRAMMING, *DATA PROCESSING SECURITY, DATA PROCESSING TERMINALS, CODING, IDENTIFICATION, READING MACHINES, MAGNETIC RECORDING SYSTEMS, LOGIC CIRCUITS, SCHEMATIC DIAGRAMS

Subject Categories : Computer Programming and Software
      Computer Hardware
      Computer Systems Management and Standards

Distribution Statement : APPROVED FOR PUBLIC RELEASE