#include <stdio.h>
#include <stdint.h>

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



#define SHA256_DGST_SIZE 32	//bytes
#define ECC_curve 

int createUDS();					//create rand file. to be replaced with real fuse pointer

int readUDS(uint8_t* UDSdigest);
int readFWID(uint8_t * FW_M);
int calcCDID(uint8_t * UDS_M, uint8_t * FW_M, uint8_t * CDID);
int _calcCDID(uint8_t * CDID);		//wrapper function broken, do not use