//
//  Determine which cryptographic library we are going to be using
//

#pragma once

#cmakedefine COSE_C_USE_MBEDTLS
#cmakedefine COSE_C_USE_OPENSSL
#cmakedefine COSE_C_USE_BCRYPT

// make sure we only use one crypto library
#if defined(COSE_C_USE_MBEDTLS)
	#if defined(COSE_C_USE_OPENSSL) || defined(COSE_C_USE_BCRYPT)
		#error Only Define One Crypto Package
	#endif
#elif defined(COSE_C_USE_BCRYPT)
	#if defined(COSE_C_USE_OPENSSL)
		#error Only Define One Crypto Package
	#endif
#endif

// verify that we have a supported version of openssl
#if defined(COSE_C_USE_OPENSSL)
	#include <openssl/opensslv.h>
#endif

//
//  Define which AES GCM algorithms are being used
//

#define USE_AES_GCM_128
#define USE_AES_GCM_192
#define USE_AES_GCM_256

#if defined(USE_AES_GCM_128) || defined(USE_AES_GCM_192) || \
	defined(USE_AES_GCM_256)
#define USE_AES_GCM
#endif

//
//  Define which AES CCM algorithms are being used
//

#define USE_AES_CCM_16_64_128
#define USE_AES_CCM_16_64_256
#define USE_AES_CCM_64_64_128
#define USE_AES_CCM_64_64_256
#define USE_AES_CCM_16_128_128
#define USE_AES_CCM_16_128_256
#define USE_AES_CCM_64_128_128
#define USE_AES_CCM_64_128_256

#define INCLUDE_AES_CCM

//
//  Define which HMAC-SHA algorithms are being used
//

#define USE_HMAC_256_64
#define USE_HMAC_256_256
#define USE_HMAC_384_384
#define USE_HMAC_512_512
#if defined(USE_HMAC_256_64) || defined(USE_HMAC_256_256) || \
	defined(USE_HMAC_384_384) || defined(USE_HMAC_512_512)
#define USE_HMAC
#endif

//
//  Define which AES CBC-MAC algorithms are to be used
//

#if !defined(COSE_C_USE_MBEDTLS)

#define USE_AES_CBC_MAC_128_64
#define USE_AES_CBC_MAC_128_128
#define USE_AES_CBC_MAC_256_64
#define USE_AES_CBC_MAC_256_128

#endif	// !defined(COSE_C_USE_MBEDTLS)

//
//  Define which ECDH algorithms are to be used
//

#if !defined(COSE_C_USE_MBEDTLS)
#define USE_ECDH_ES_HKDF_256
#define USE_ECDH_ES_HKDF_512
#define USE_ECDH_SS_HKDF_256
#define USE_ECDH_SS_HKDF_512
#if defined(USE_ECDH_ES_HKDF_256) || defined(USE_ECDH_ES_HKDF_512) || \
	defined(USE_ECDH_SS_HKDF_256) || defined(USE_ECDH_SS_HKDF_512)
#define USE_ECDH 1
#define USE_HKDF_SHA2 1
#endif
#endif	// !defined(COSE_C_USE_MBEDTLS)

#if !defined(COSE_C_USE_MBEDTLS)
#define USE_ECDH_ES_A128KW
#define USE_ECDH_ES_A192KW
#define USE_ECDH_ES_A256KW
#define USE_ECDH_SS_A128KW
#define USE_ECDH_SS_A192KW
#define USE_ECDH_SS_A256KW
#if defined(USE_ECDH_ES_A128KW) || defined(USE_ECDH_ES_A192KW) || \
	defined(USE_ECDH_ES_A256KW) || defined(USE_ECDH_SS_A128KW) || \
	defined(USE_ECDH_SS_A192KW) || defined(USE_ECDH_SS_A256KW)
#define USE_ECDH 1
#define USE_HKDF_AES 1
#endif
#endif	// !defined(COSE_C_USE_MBEDTLS)

//
//  Define which Key Wrap functions are to be used
//

#if !defined(COSE_C_USE_MBEDTLS)
#define USE_AES_KW_128
#define USE_AES_KW_192
#define USE_AES_KW_256
#endif	// !defined(COSE_C_USE_MBEDTLS)

//
//  Define which of the DIRECT + KDF algorithms are to be used
//

#if !defined(COSE_C_USE_MBEDTLS)
#define USE_Direct_HKDF_HMAC_SHA_256
#define USE_Direct_HKDF_HMAC_SHA_512
#define USE_Direct_HKDF_AES_128
#define USE_Direct_HKDF_AES_256
#if defined(USE_Direct_HKDF_HMAC_SHA_256) || \
	defined(USE_Direct_HKDF_HMAC_SHA_512)
#define USE_HKDF_SHA2 1
#endif
#if defined(USE_Direct_HKDF_AES_128) || defined(USE_Direct_KDF_AES_256)
#define USE_HKDF_AES 1
#endif
#endif	// !defined(COSE_C_USE_MBEDTLS)

//
//  Define which of the signature algorithms are to be used
//

#define USE_ECDSA_SHA_256
#define USE_ECDSA_SHA_384
#define USE_ECDSA_SHA_512
#if defined(COSE_C_USE_OPENSSL)
	//  MBEDTLS currently supports ECDH for X25519 but not EdDSA
	#if OPENSSL_VERSION_NUMBER > 0x10100000L
		// Requires OPEN SSL 1.1.1 to build
		#define USE_EDDSA
	#else
		#define STRINGIFY(x) #x
		#define TOSTRING(x) STRINGIFY(x)
		#pragma message("OPENSSL VERSION IS " OPENSSL_VERSION_TEXT)
	#endif
#endif	// !defined (COSE_C_USE_MBEDTLS)

//
//   Define which COSE objects are included
//

#ifndef INCLUDE_ENCRYPT
#define INCLUDE_ENCRYPT 1
#endif
#ifndef INCLUDE_ENCRYPT0
#define INCLUDE_ENCRYPT0 1
#endif
#ifndef INCLUDE_MAC
#define INCLUDE_MAC 1
#endif
#ifndef INCLUDE_MAC0
#define INCLUDE_MAC0 1
#endif
#ifndef INCLUDE_SIGN
#define INCLUDE_SIGN 1
#endif
#ifndef INCLUDE_SIGN1
#define INCLUDE_SIGN1 1
#endif
#ifndef INCLUDE_COUNTERSIGNATURE
#define INCLUDE_COUNTERSIGNATURE 1
#endif
#ifndef INCLUDE_COUNTERSIGNATURE1
#define INCLUDE_COUNTERSIGNATURE1 0
#endif