The method involves generating secret data, and transmitting the data to a secured host processor (HP3) via a secured connection. The data to be loaded in the processor is encrypted by using a public key (NPK) of the processor. The encrypted data is transmitted to a near field communication (NFC) chipset system for destination of the processor which decrypts the data using a private key (NSK) corresponding to the public key of the processor. An independent claim is also included for a near field communication (NFC) chipset system comprising a secured host processor.