How to compare strings/array? RFID Project

[astanapane]

The attached file shown what i need to do with the ID-12 and the pic16f628a.

I will seperate those in two circuits.

The first circuit will read and identify the RFID cards and the second circuits will be based on the 3x4 keypad.

Once you pass the rfid card from the ID-12 the circuit will check if the card is valid or not.

If it is valid then will proceed and display your name. If not then you will need to go back and check card again.

Once you are accepted from the system then you only have 5 seconds to open the door. You will need to type your 4 digit code in order to open the door.