APPARATUS FOR VERIFYING ENCRYPTION AND METHOD FOR VERIFYING ENCRYPTION

摘要

PURPOSE: A password authentication device and a password authentication method thereof are provided to guarantee safety from an attack of a hacker through pattern analysis by randomizing passwords. CONSTITUTION: User information and an original password for user registration are stored(S210). The use of a variable coding system is confirmed when a user tries password authentication(S220). A random number is displayed(S230). A virtual password is generated by using the random number and the original password(S240). A confirmation process for a user authentication password is performed(S250). A comparison process between the virtual password and the authentication password is performed(S260). When a combination of a second operator and a second variable and a plurality of virtual passwords are same, the authentication of a corresponding user is permitted(S270). [Reference numerals] (AA) Start; (BB) End; (S210) Storing an original password for user registration; (S220) Using a variable coding system?; (S222) Performing a static coding system; (S230) Generating and displaying a random number; (S240) Generating a virtual password by using the random number and the original password; (S250) Finishing a user authentication password input?; (S260) Virtual password = inputted authentication password?; (S270) Password authentication success; (S272) Password authentication fail