STM32 PN532 AES Reader Firmware -- 2

I have a PN532 NFC front-end wired to an STM32 and now need complete firmware that turns this hardware into a reliable MIFARE Ultralight AES reader/writer. The reader must perform AES-128 authentication... (Budget: £750 - £1500 GBP, Jobs: C Programming, Cryptography, Documentation, Electrical Engineering, Electronics, Embedded Systems, Firmware Development, Microcontroller, Software Development, STM32)