IC Chip for Preventing Identification Key Leak and Authorization Method Thereof

摘要

Disclosed are an IC chip for preventing identification key leak and an authorization method thereof. An IC chip capable of performing a financial function includes: a PIN supply unit for supplying a PIN used for authorization when performing a financial function using the IC chip; and a blocking unit for physically blocking the gap between the PIN supply unit and an input-output interface when the PIN is supplied to the outside through the input-output interface at an initial access of the IC chip.

主权项

1. An integrated circuit (IC) chip to be used for performing a financial function, the IC chip comprising:
a personal identification number (PIN) supply unit to supply a PIN to be used for authorization when performing the financial function using the IC chip; an input-output interface to transmit the PIN externally; and a blocking unit to physically block a connection between the PIN supply unit and the input-output interface when the PIN is transmitted externally through the input-output interface subsequent to the IC chip being initially accessed.