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/* Copyright [2009 - 2019] Exegin Technologies Limited. All rights reserved. */
/*--------------------------------------------------------------------------
* Copyright (c) 2013-2014, Exegin Technologies Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Exegin Technologies Limited nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*--------------------------------------------------------------------------
*/
/*--------------------------------------------------------------------------
* DESCRIPTION
* Interface definition for the Certificate
* Based Key Exchange suite to the ZigBee
* Key Establishment cluster.
*--------------------------------------------------------------------------
*/
#ifndef ZCL_CBKE_H
# define ZCL_CBKE_H
#include "zcl/zcl.h"
#include "zcl/key/zcl.cbke.h"
#include "zcl/key/zcl.key.h"
/*---------------------------------------------------------------
* Constants
*---------------------------------------------------------------
*/
#define CURVE_IDENTIFIER_SECT163K1 0x00U /* HACK: Not actually defined in the spec, but used for legacy certs. */
#define CURVE_IDENTIFIER_SECT283K1 0x0DU
#define HASH_IDENTIFIER_AES_MMO 0x08U
#define CERT_VALID_INFINITY 0xffffffffU
#define CBKE2_KEY_USAGE_AGREEMENT 0x08U
#define CBKE2_DIGITAL_SIGNATURE 0x80U
#define CBKE_EPHEMERAL_MAX_TIME 0xfeU
#define CBKE_CONFIRM_MAX_TIME 0xfeU
#define CBKE_V1_EPHEMERAL_DEFAULT_TIME 11U
#define CBKE_V1_CONFIRM_DEFAULT_TIME 16U
#define CBKE_V2_EPHEMERAL_DEFAULT_TIME 22U
#define CBKE_V2_CONFIRM_DEFAULT_TIME 32U
/*---------------------------------------------------------------
* Structures
*---------------------------------------------------------------
*/
typedef struct {
uint8_t type;
uint64_t serial;
uint8_t curve;
uint8_t hash;
uint64_t issuer;
uint64_t validFrom;
uint32_t validTo;
uint64_t subject;
uint8_t keyUsage;
size_t publicLen;
uint8_t publicKey[CBKE2_CERT_PUBLIC_KEY_SIZE];
} ZbZclCertificateT;
struct ZbZclKeClusterT;
/*---------------------------------------------------------------
* Function Declarations
*---------------------------------------------------------------
*/
enum ZclStatusCodeT ZbZclKeAddCbke(struct ZbZclClusterT *clusterPtr, const struct ZbZclCbkeInfoT *info);
enum ZclStatusCodeT ZbZclKeAddCbke2(struct ZbZclClusterT *clusterPtr, const struct ZbZclCbke2InfoT *info);
ZbZclCertificateT * ZbZclParseCertificate(ZbZclCertificateT *dst, const void *src, size_t len);
enum ZbZclKeyStatusT ZbZclCbke2ReconstPrivateKey(struct ZigBeeT *zb, const uint8_t *icu, const uint8_t *se, const uint8_t *du, uint8_t *wu);
/* Helper function to reconstruct a private key. */
uint8_t ZbZclCbkeReconstPrivateKey(const unsigned char *icu, const unsigned char *se, const unsigned char *du, unsigned char *wu);
struct ZbZclKeSuiteT * ZbZclKeMatchSuite(struct ZbZclKeClusterT *kePtr, uint16_t suite_mask);
bool ZbZclSuiteIsSupported(struct ZbZclClusterT *cluster, uint16_t suite);
#endif /* _ZCL_CBKE_H */
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