SYSTEM FOR PREVENTING SMUDGE AND SHOULDER SURFING ATTACKS ON MOBILE DEVICE AND USER PATTERN AUTHENTICATION METHOD

摘要

The present invention relates to a pattern authentication method for preventing smudge and shoulder surfing attacks, the method comprising a pattern registration step and a pattern authentication step, wherein the pattern registration step comprises the steps of: by an input unit of a pattern authentication device, receiving a pattern from a user; by a matching unit, matching a code value corresponding to the pattern being received from the user and storing the code value in a storage unit; and by a key derivation ID (KDI) generator, generating a user key derivation ID (KDI) by matching the code value with a quantum random number table comprising quantum random numbers generated by a quantum random-number generator.