81 lines
4.0 KiB
C++
81 lines
4.0 KiB
C++
/* Copyright Statement:
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* *
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* * This software/firmware and related documentation ("MediaTek Software") are
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* * protected under relevant copyright laws. The information contained herein
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* * is confidential and proprietary to MediaTek Inc. and/or its licensors.
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* * Without the prior written permission of MediaTek inc. and/or its licensors,
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* * any reproduction, modification, use or disclosure of MediaTek Software,
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* * and information contained herein, in whole or in part, shall be strictly prohibited.
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* *
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* * MediaTek Inc. (C) 2016. All rights reserved.
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* *
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* * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
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* * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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* * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
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* * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
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* * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
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* * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
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* * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
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* * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
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* * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
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* * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
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* * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
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* * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
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* * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
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* * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
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* * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
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* * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
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* * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
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* * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
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* *
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* * The following software/firmware and/or related documentation ("MediaTek Software")
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* * have been modified by MediaTek Inc. All revisions are subject to any receiver's
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* * applicable license agreements with MediaTek Inc.
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* */
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#ifdef MTK_MESH_SUPPORT
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#if (SMP_DEBUG == TRUE)
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#include <stdio.h>
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#endif
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#include "bt_target.h"
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#include "stack/smp/p_256_ecc_pp.h"
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#include "stack/smp/smp_int.h"
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#include "mtk_btm_ble_api.h"
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#endif
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#ifdef MTK_MESH_SUPPORT
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EXPORT_SYMBOL void smp_generate_key(uint8_t pub_key[BT_OCTET32_LEN * 2], uint8_t pri_key[BT_OCTET32_LEN]) {
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Point public_key;
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BT_OCTET32 private_key;
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SMP_TRACE_DEBUG("%s", __func__);
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memcpy(private_key, pri_key, BT_OCTET32_LEN);
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ECC_PointMult(&public_key, &(curve_p256.G), (uint32_t*)private_key);
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memcpy(pub_key, public_key.x, BT_OCTET32_LEN);
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memcpy(&pub_key[BT_OCTET32_LEN], public_key.y, BT_OCTET32_LEN);
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#if (SMP_DEBUG == TRUE)
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smp_debug_print_nbyte_little_endian (pri_key, "private", BT_OCTET32_LEN);
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smp_debug_print_nbyte_little_endian (public_key.x, "public(x)", BT_OCTET32_LEN);
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smp_debug_print_nbyte_little_endian (public_key.y, "public(y)", BT_OCTET32_LEN);
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#endif
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}
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EXPORT_SYMBOL void smp_calculate_dhkey(const uint8_t pub_key[BT_OCTET32_LEN * 2], const uint8_t pri_key[BT_OCTET32_LEN], uint8_t secret[BT_OCTET32_LEN]) {
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Point peer_publ_key, new_publ_key;
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SMP_TRACE_DEBUG("%s", __func__);
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memcpy(peer_publ_key.x, pub_key, BT_OCTET32_LEN);
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memcpy(peer_publ_key.y, &pub_key[BT_OCTET32_LEN], BT_OCTET32_LEN);
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ECC_PointMult(&new_publ_key, &peer_publ_key, (uint32_t*)pri_key);
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memcpy(secret, new_publ_key.x, BT_OCTET32_LEN);
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#if (SMP_DEBUG == TRUE)
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smp_debug_print_nbyte_little_endian(pri_key, "private", BT_OCTET32_LEN);
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smp_debug_print_nbyte_little_endian(pub_key, "public(x)", BT_OCTET32_LEN);
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smp_debug_print_nbyte_little_endian(&pub_key[32], "public(y)", BT_OCTET32_LEN);
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smp_debug_print_nbyte_little_endian(secret, "secret", BT_OCTET32_LEN);
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#endif
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}
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#endif
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