Here is my dram$-$puf based secure protocol.I have been told that for hardware implementation part have to use raspberrypi which dont have any idea how could you please help me with that give me instructions$/$hints$/$information$.$Thanks in advance.

First we have set$-$up these parameters;

Public, Private key pairs

$1)$ Enrollment Phase: $-$ First Device will send its Device identification $($DID$)$ to Server

$-$ Server will send its Public key

$-$ PUF produce a "golden" response with challenge

$-$ Device $($D$)$ will send "golden" response with

DID $+$ Device Challenge $($C$\_$DID$)$ encrypted with

Device Public key

$-$ Server will take this $($C$\_$DID, s$,$ DID$)$ Pub$\_$DID

Decrypted with its private key and store it$.$

$2)$ Authentication Phase: $-$ Device will make an authorization request $($Authreq$,$ DID$)$

$-$ Server will go to Database get relevant challenge $($C$\_$DID$)$

know the relevant "golden" response, create Nonce $($h$)$

$-$ Server Encrypt this challenge and Nonce and send

to Device

$-$ Device will decrypt this challenge with its private key.

$-$ Device will create response $($R$)$ and with Nonce send

to server back.

$3)$ Hamming Distance $($HD$)$ is the noise.

We are comparing "golden" response $+$ noise $(+$HD$)$ compare with Response $($R$)$

so let's "old proven" is okay, I can change this ratio later.