voice recognition for identification and authorization of people

I’m currently working on my final year project, which is on the design and implementation of a voice recognition system in ATM machines. The voice recognition system is to identify the individual’s voice and then match it with the voice prints in the database so as to either grant access to the individual or decline. It is basically using our voices as additional means of accessing ATMs for security purposes. I wonder if this can be achieved using arduio?

The Arduino has far too little memory and is too slow for such a complex task.