#include <stdio.h>
#include <stdint.h>
#include <openssl/rand.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/sha.h>

#define SHA256_dig_t 32	//bytes

int readUDS(uint8_t* UDSdigest);
int createUDS();
int readFWID(uint8_t * FW_M);
int calcCDID(uint8_t * UDS_M, uint8_t * FW_M, uint8_t * CDID);