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mesh: collect mesh-related crypto functions in /mesh_crypto

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This commit is contained in:
Matthias Ringwald 2018-10-05 15:44:15 +02:00
parent b7f1c2ae8d
commit db923fb98a
7 changed files with 170 additions and 66 deletions
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94
src/ble/mesh/mesh_crypto.c Normal file
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@ -0,0 +1,94 @@
/*
* Copyright (C) 2017 BlueKitchen GmbH
*
* 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH 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 MATTHIAS
* RINGWALD 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.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#define __BTSTACK_FILE__ "mesh_crypto.c"
#include <stdint.h>
#include <string.h>
#include "mesh_crypto.h"
// mesh k1 - might get moved to btstack_crypto and all vars go into btstack_crypto_mesh_k1_t struct
static uint8_t mesh_k1_temp[16];
static void (* mesh_k1_callback)(void * arg);
static void * mesh_k1_arg;
static const uint8_t * mesh_k1_p;
static uint16_t mesh_k1_p_len;
static uint8_t * mesh_k1_result;
static void mesh_k1_temp_calculated(void * arg){
btstack_crypto_aes128_cmac_t * request = (btstack_crypto_aes128_cmac_t*) arg;
btstack_crypto_aes128_cmac_message(request, mesh_k1_temp, mesh_k1_p_len, mesh_k1_p, mesh_k1_result, mesh_k1_callback, mesh_k1_arg);
}
void mesh_k1(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint16_t n_len, const uint8_t * salt,
const uint8_t * p, const uint16_t p_len, uint8_t * result, void (* callback)(void * arg), void * callback_arg){
mesh_k1_callback = callback;
mesh_k1_arg = callback_arg;
mesh_k1_p = p;
mesh_k1_p_len = p_len;
mesh_k1_result = result;
btstack_crypto_aes128_cmac_message(request, salt, n_len, n, mesh_k1_temp, mesh_k1_temp_calculated, request);
}
// mesh k3 - might get moved to btstack_crypto and all vars go into btstack_crypto_mesh_k3_t struct
static const uint8_t mesh_k3_tag[5] = { 'i', 'd', '6', '4', 0x01};
static uint8_t mesh_k3_temp[16];
static uint8_t mesh_k3_result128[16];
static void (* mesh_k3_callback)(void * arg);
static void * mesh_k3_arg;
static const uint8_t * mesh_k3_n;
static uint8_t * mesh_k3_result;
// AES-CMAC_ZERO('smk3')
static const uint8_t mesh_salt_smk3[] = { 0x00, 0x36, 0x44, 0x35, 0x03, 0xf1, 0x95, 0xcc, 0x8a, 0x71, 0x6e, 0x13, 0x62, 0x91, 0xc3, 0x02, };
static void mesh_k3_result128_calculated(void * arg){
UNUSED(arg);
memcpy(mesh_k3_result, &mesh_k3_result128[8], 8);
(*mesh_k3_callback)(mesh_k3_arg);
}
static void mesh_k3_temp_callback(void * arg){
btstack_crypto_aes128_cmac_t * request = (btstack_crypto_aes128_cmac_t*) arg;
btstack_crypto_aes128_cmac_message(request, mesh_k3_temp, sizeof(mesh_k3_tag), mesh_k3_tag, mesh_k3_result128, mesh_k3_result128_calculated, request);
}
void mesh_k3(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint8_t * result, void (* callback)(void * arg), void * callback_arg){
mesh_k3_callback = callback;
mesh_k3_arg = callback_arg;
mesh_k3_n = n;
mesh_k3_result = result;
btstack_crypto_aes128_cmac_message(request, mesh_salt_smk3, 16, mesh_k3_n, mesh_k3_temp, mesh_k3_temp_callback, request);
}

69
src/ble/mesh/mesh_crypto.h Normal file
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@ -0,0 +1,69 @@
/*
* Copyright (C) 2017 BlueKitchen GmbH
*
* 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH 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 MATTHIAS
* RINGWALD 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.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
/*
* provisioning.h
*/
#ifndef __MESH_CRYPTO_H
#define __MESH_CRYPTO_H
#include <stdint.h>
#include "btstack_defines.h"
#include "btstack_crypto.h"
#ifdef __cplusplus
extern "C"
{
#endif
/**
* Calculate mesh k1 function
*/
void mesh_k1(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint16_t n_len, const uint8_t * salt,
const uint8_t * p, const uint16_t p_len, uint8_t * result, void (* callback)(void * arg), void * callback_arg);
/**
* Calculate mesh k3 function
*/
void mesh_k3(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint8_t * result, void (* callback)(void * arg), void * callback_arg);
#ifdef __cplusplus
} /* end of extern "C" */
#endif
#endif

8
test/mesh/Makefile
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@ -41,19 +41,19 @@ CC_UNIT = g++
CFLAGS += $(shell pkg-config libusb-1.0 --cflags)
LDFLAGS += $(shell pkg-config libusb-1.0 --libs)
mesh: ${CORE_OBJ} ${COMMON_OBJ} ${SM_OBJ} provisioning.o provisioning_device.o mesh.o
mesh: ${CORE_OBJ} ${COMMON_OBJ} ${SM_OBJ} mesh_crypto.o provisioning_device.o mesh.o
${CC} $^ ${CFLAGS} ${LDFLAGS} -o $@
provisioner: ${CORE_OBJ} ${COMMON_OBJ} ${SM_OBJ} provisioning.o provisioning_provisioner.o provisioner.o
provisioner: ${CORE_OBJ} ${COMMON_OBJ} ${SM_OBJ} mesh_crypto.o provisioning_provisioner.o provisioner.o
${CC} $^ ${CFLAGS} ${LDFLAGS} -o $@
sniffer: ${CORE_OBJ} ${COMMON_OBJ} ${SM_OBJ} sniffer.c
${CC} $^ ${CFLAGS} ${LDFLAGS} -o $@
provisioning_device_test: provisioning_device_test.cpp uECC.o provisioning.o provisioning_device.o btstack_crypto.o btstack_util.o btstack_linked_list.o mock.o rijndael.o hci_cmd.o hci_dump.o
provisioning_device_test: provisioning_device_test.cpp uECC.o mesh_crypto.o provisioning_device.o btstack_crypto.o btstack_util.o btstack_linked_list.o mock.o rijndael.o hci_cmd.o hci_dump.o
${CC_UNIT} ${CFLAGS} ${LDFLAGS} $^ -lCppUTest -lCppUTestExt -o $@
provisioning_provisioner_test: provisioning_provisioner_test.cpp uECC.o provisioning.o provisioning_provisioner.o btstack_crypto.o btstack_util.o btstack_linked_list.o mock.o rijndael.o hci_cmd.o hci_dump.o
provisioning_provisioner_test: provisioning_provisioner_test.cpp uECC.o mesh_crypto.o provisioning_provisioner.o btstack_crypto.o btstack_util.o btstack_linked_list.o mock.o rijndael.o hci_cmd.o hci_dump.o
${CC_UNIT} ${CFLAGS} ${LDFLAGS} $^ -lCppUTest -lCppUTestExt -o $@
EXAMPLES = mesh provisioner sniffer provisioning_device_test provisioning_provisioner_test

52
test/mesh/provisioning.c
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@ -40,55 +40,3 @@
#include <stdint.h>
#include <string.h>
#include "provisioning.h"
// mesh k1 - might get moved to btstack_crypto and all vars go into btstack_crypto_mesh_k1_t struct
static uint8_t mesh_k1_temp[16];
static void (* mesh_k1_callback)(void * arg);
static void * mesh_k1_arg;
static const uint8_t * mesh_k1_p;
static uint16_t mesh_k1_p_len;
static uint8_t * mesh_k1_result;
static void mesh_k1_temp_calculated(void * arg){
btstack_crypto_aes128_cmac_t * request = (btstack_crypto_aes128_cmac_t*) arg;
btstack_crypto_aes128_cmac_message(request, mesh_k1_temp, mesh_k1_p_len, mesh_k1_p, mesh_k1_result, mesh_k1_callback, mesh_k1_arg);
}
void mesh_k1(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint16_t n_len, const uint8_t * salt,
const uint8_t * p, const uint16_t p_len, uint8_t * result, void (* callback)(void * arg), void * callback_arg){
mesh_k1_callback = callback;
mesh_k1_arg = callback_arg;
mesh_k1_p = p;
mesh_k1_p_len = p_len;
mesh_k1_result = result;
btstack_crypto_aes128_cmac_message(request, salt, n_len, n, mesh_k1_temp, mesh_k1_temp_calculated, request);
}
// mesh k3 - might get moved to btstack_crypto and all vars go into btstack_crypto_mesh_k3_t struct
static const uint8_t mesh_k3_tag[5] = { 'i', 'd', '6', '4', 0x01};
static uint8_t mesh_k3_temp[16];
static uint8_t mesh_k3_result128[16];
static void (* mesh_k3_callback)(void * arg);
static void * mesh_k3_arg;
static const uint8_t * mesh_k3_n;
static uint8_t * mesh_k3_result;
// AES-CMAC_ZERO('smk3')
static const uint8_t mesh_salt_smk3[] = { 0x00, 0x36, 0x44, 0x35, 0x03, 0xf1, 0x95, 0xcc, 0x8a, 0x71, 0x6e, 0x13, 0x62, 0x91, 0xc3, 0x02, };
static void mesh_k3_result128_calculated(void * arg){
UNUSED(arg);
memcpy(mesh_k3_result, &mesh_k3_result128[8], 8);
(*mesh_k3_callback)(mesh_k3_arg);
}
static void mesh_k3_temp_callback(void * arg){
btstack_crypto_aes128_cmac_t * request = (btstack_crypto_aes128_cmac_t*) arg;
btstack_crypto_aes128_cmac_message(request, mesh_k3_temp, sizeof(mesh_k3_tag), mesh_k3_tag, mesh_k3_result128, mesh_k3_result128_calculated, request);
}
void mesh_k3(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint8_t * result, void (* callback)(void * arg), void * callback_arg){
mesh_k3_callback = callback;
mesh_k3_arg = callback_arg;
mesh_k3_n = n;
mesh_k3_result = result;
btstack_crypto_aes128_cmac_message(request, mesh_salt_smk3, 16, mesh_k3_n, mesh_k3_temp, mesh_k3_temp_callback, request);
}

11
test/mesh/provisioning.h
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@ -79,22 +79,13 @@ extern "C"
#define MESH_INPUT_OOB_NUMBER 0x04
#define MESH_INPUT_OOB_STRING 0x08
typedef struct {
uint8_t network_id[8];
uint8_t beacon_key[16];
uint32_t iv_index;
} mesh_provisioning_data;
/**
* Calculate mesh k1 function
*/
void mesh_k1(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint16_t n_len, const uint8_t * salt,
const uint8_t * p, const uint16_t p_len, uint8_t * result, void (* callback)(void * arg), void * callback_arg);
/**
* Calculate mesh k3 function
*/
void mesh_k3(btstack_crypto_aes128_cmac_t * request, const uint8_t * n, uint8_t * result, void (* callback)(void * arg), void * callback_arg);
#ifdef __cplusplus
} /* end of extern "C" */

1
test/mesh/provisioning_device.c
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@ -42,6 +42,7 @@
#include <stdlib.h>
#include <string.h>
#include "ble/mesh/pb_adv.h"
#include "ble/mesh/mesh_crypto.h"
#include "classic/rfcomm.h" // for crc8
#include "btstack.h"
#include "provisioning.h"

1
test/mesh/provisioning_provisioner.c
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@ -42,6 +42,7 @@
#include <stdlib.h>
#include <string.h>
#include "ble/mesh/pb_adv.h"
#include "ble/mesh/mesh_crypto.h"
#include "classic/rfcomm.h" // for crc8
#include "btstack.h"
#include "provisioning.h"