QUESTION AND ANSWER TYPE INDIVIDUAL IDENTIFICATION DEVICE, QUESTION AND ANSWER TYPE INDIVIDUAL IDENTIFICATION METHOD, COMMUNICATION EQUIPMENT AND COMMUNICATION METHOD

摘要

PURPOSE: To make secret information easily memorizable and to reduce the danger of unauthorized acquisition by performing preparation based on a prescribed rule. ;CONSTITUTION: A proving person prepares a character string H= {question, answer,..., hacker} as the easily memorizable information from a using character set C={a, b,..., z, 0,..., 9) based on the prescribed rule and registers it in an identification processor. When identification is requested from the proving person, a question is asked from the identification processor to the proving person, 64 blocks of vertically 8×horizontally 8 corresponding to the respective characters of the secret information H are displayed and the characters positioned on the specified blocks among the blocks are questioned. Whether or not a reply (e, a, o, y, r, e, s, r) inputted from a terminal is correct is judged by the identification processor, and when it is correct, a person who prepares the reply is identified as the proving person.;COPYRIGHT: (C)1996,JPO