#ifndef DEFINE_HEADERS_SEEN
//check header file for re-def conflicts

#define DEFINE_HEADERS_SEEN

/* ERROR CODES TO BE USED IN DIMA */

#define DIMASTATUS			int

#define DIMASUCCESS			0
#define DIMAFAILURE			-1

#define DIMAFILENOTFOUND	-1001
#define	DIMAINPUTERROR		-1002
#define DIMAOUTPUTERROR		-1003
#define DIMAINVALIDSTATE	-1004
#define DIMASHAFAILURE		-1005
#define DIMAECCFAILURE		-1006
#define DIMARSAFAILURE		-1007
#define DIMADRBGFAILURE		-1008
#define DIMAHKDFFAILURE		-1009
#define DIMAPKFAILURE		-1010
#define DIMASIGNFAILURE		-1011
#define DIMAVERIFYFAILURE	-1012


#define DIMAINFOMISMATCH	-1100


#define DIMAFAILUREUNKWN	-1111


////////////////////////////////////////////////

/* CONSTANTS TO BE USED IN DIMA */
#define SHA256_DGST_SIZE 	32			//bytes
#define UDS_SIZE			8
#define HKDF_KEY_SIZE		32
#define HKDF_ALG			MBEDTLS_MD_SHA256
#define ECC_CURVE			MBEDTLS_ECP_DP_SECP256R1	//mbedtls_ecp_group_id
#define RSA_HASH_ID			MBEDTLS_MD_SHA256 
#define RSA_SIZE			2048	//4096
#define RSA_EXP				65537
#define KEY_BUF_SIZE		16000
#define NONCE_SIZE			2




/* SPECIFIC AND SPECIAL VALUES */
/* DO NOT CHANGE THIS BLOCK */
#define IDENTITY	"Identity"
#define ALIAS 		"Alias"
#define SESSION 	"Session"
#define ACCUM_BUFF_OFFSET	2
#define ENTROPY_LEN			32


////////////////////////////////////////////////

/* DEFAULT CONFIGURATIONS */

#define DEBUG			0			//print all values when 1

#define isRSA			0
#define isECC 			1
#define DFL_PKC			isRSA		// isECC, 1 = ECC, 0= RSA

//#define BIN 			2
#define PEM 			0
#define DER 			1
#define	DFL_FORM		PEM
//#define DFL_PUB			"keys/DID_pub." DFL_FORM
//#define DFL_PRIV		"SecureStorage/DID_priv" DFL_FORM




//DRBG entropy source
#define SW_PRNG 	0
#define HW_TRNG 	1
#define DETERM 		2
#define DFL_ENT		DETERM


//////////////////////////////////////////////////

///Stage 2 configs

#define CL_NOS	2		//No of clients to be verified by THIS node


//Clinet verification status
#define Cl_unverf		0
#define Cl_verfd		1
#define Cl_fault		-1
#define DFL_CL_STAT		Cl_unverf

//Client capabilities	master, node, leaf
//evita full, med, small
#define CAP_FULL		1

#define DFL_CAP		CAP_FULL

///////////////////////////////////////////////////

/* typedefs */

typedef struct
{
	/*
	Use this typedef to define settings and vlaues to be passed to deriveECCKeyPair()
	To be used or exchanging data between ROM and FW
	*/
    int 					ENT_MODE;		//SW_PRNG,HW_TRNG,DETERM,
    int 					PKC_MODE;		//isRSA, isECC
    const uint8_t * 		seed;			
    const char *			phrase;			//IDENTITY,ALIAS,SESSION
    int 					KEY_FORM;		//BIN,PEM,DER
    char * 					pub_file;
    char *					priv_file;
    //placeholder, not implemented
    mbedtls_ecp_point *			pub_key;		//used to store keys in mem, if needed
    mbedtls_mpi *				priv_key;

} KeyDrv_context;

typedef struct
{
	/**
	Use this typedef to feed info to hash calculator
	**/
	const char *			filename;		//in file
	size_t					inLen;
	uint8_t * 				outbuf;			//out buf			
} Hash_context;

//useless structure ^ this one


typedef struct 
{
	/*
	Use this struct to load, store and update client info on server side
	or both ways if mutual attestation is possible
	*/
	const char *			cli_ID;
	const char *			pub_file;
	mbedtls_ecp_point *		pub_key;
	int 					Cli_STATUS;
	int 					Cli_CAP;
	const uint8_t	*		NONCE;

} Client_info;

typedef struct 
{
	//Use this struct to maintain uniformity between client and sever

	const char *			cli_ID;
	const uint8_t *			NONCE;
	const uint8_t *			sign;
	const size_t 			sig_len;

} Chall_context;


typedef struct 
{
	//Use this struct to maintain uniformity between client and sever

	const char *			cli_ID;
	const uint8_t *			NONCE;
	const uint8_t *			sign;
	const size_t 			sig_len;
} Resp_context;



#endif	//DEFINE_HEADERS_SEEN
//End of file