1 /*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the copyright holders nor the names of
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * 4. Any redistribution, use, or modification is done solely for
17 * personal benefit and not for any commercial purpose or for
18 * monetary gain.
19 *
20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Please inquire about commercial licensing options at
34 * [email protected]
35 *
36 */
37
38
39 #include <stdint.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43
44 #include "CppUTest/TestHarness.h"
45 #include "CppUTest/CommandLineTestRunner.h"
46
47 #include "hci.h"
48 #include "btstack_util.h"
49 #include "bluetooth.h"
50 #include "btstack_crypto.h"
51
52 static btstack_crypto_aes128_cmac_t cmac_context;
53 static uint8_t cmac_calculated[16];
54
55 static const char key_string[] = "2b7e1516 28aed2a6 abf71588 09cf4f3c";
56 static const char example_16_string[] = "6bc1bee2 2e409f96 e93d7e11 7393172a";
57 static const char example_40_string[] = "6bc1bee2 2e409f96 e93d7e11 7393172a ae2d8a57 1e03ac9c 9eb76fac 45af8e51 30c81c46 a35ce411";
58 static const char cmac_0_string[] = "bb1d6929 e9593728 7fa37d12 9b756746";
59 static const char cmac_16_string[] = "070a16b4 6b4d4144 f79bdd9d d04a287c";
60 static const char cmac_40_string[] = "dfa66747 de9ae630 30ca3261 1497c827";
61
parse_hex(uint8_t * buffer,const char * hex_string)62 static int parse_hex(uint8_t * buffer, const char * hex_string){
63 int len = 0;
64 while (*hex_string){
65 if (*hex_string == ' '){
66 hex_string++;
67 continue;
68 }
69 int high_nibble = nibble_for_char(*hex_string++);
70 int low_nibble = nibble_for_char(*hex_string++);
71 *buffer++ = (high_nibble << 4) | low_nibble;
72 len++;
73 }
74 return len;
75 }
76
gatt_hash_calculated(void * arg)77 static void gatt_hash_calculated(void * arg){
78 UNUSED(arg);
79 }
80
CHECK_EQUAL_ARRAY(const uint8_t * expected,uint8_t * actual,int size)81 void CHECK_EQUAL_ARRAY(const uint8_t * expected, uint8_t * actual, int size){
82 for (int i=0; i<size; i++){
83 // printf("%03u: %02x - %02x\n", i, expected[i], actual[i]);
84 BYTES_EQUAL(expected[i], actual[i]);
85 }
86 }
87
88 // mock
89 extern "C" {
hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler)90 void hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler){
91 }
hci_can_send_command_packet_now(void)92 bool hci_can_send_command_packet_now(void){
93 return true;
94 }
hci_get_state(void)95 HCI_STATE hci_get_state(void){
96 return HCI_STATE_WORKING;
97 }
hci_halting_defer(void)98 void hci_halting_defer(void){
99 }
hci_send_cmd(const hci_cmd_t * cmd,...)100 uint8_t hci_send_cmd(const hci_cmd_t *cmd, ...){
101 printf("hci_send_cmd opcode %04x\n", cmd->opcode);
102 return ERROR_CODE_SUCCESS;
103 }
104 }
105
TEST_GROUP(AES_CMAC)106 TEST_GROUP(AES_CMAC){
107 };
108
TEST(AES_CMAC,CMAC_0)109 TEST(AES_CMAC,CMAC_0){
110 uint8_t k[16];
111 uint8_t cmac[16];
112 parse_hex(k, key_string);
113 parse_hex(cmac, cmac_0_string);
114 btstack_crypto_aes128_cmac_message(&cmac_context, k, 0, NULL, cmac_calculated, gatt_hash_calculated, NULL);
115 CHECK_EQUAL_ARRAY(cmac, cmac_calculated, 16);
116 }
117
TEST(AES_CMAC,CMAC_16)118 TEST(AES_CMAC,CMAC_16){
119 uint8_t k[16];
120 uint8_t cmac[16];
121 uint8_t m[16];
122 parse_hex(k, key_string);
123 parse_hex(m, example_16_string);
124 parse_hex(cmac, cmac_16_string);
125 btstack_crypto_aes128_cmac_message(&cmac_context, k, 16, m, cmac_calculated, gatt_hash_calculated, NULL);
126 CHECK_EQUAL_ARRAY(cmac, cmac_calculated, 16);
127 }
128
TEST(AES_CMAC,CMAC_40)129 TEST(AES_CMAC,CMAC_40){
130 uint8_t k[16];
131 uint8_t cmac[16];
132 uint8_t m[40];
133 parse_hex(k, key_string);
134 parse_hex(m, example_40_string);
135 parse_hex(cmac, cmac_40_string);
136 btstack_crypto_aes128_cmac_message(&cmac_context, k, 40, m, cmac_calculated, gatt_hash_calculated, NULL);
137 printf_hexdump(cmac_calculated, 16);
138 CHECK_EQUAL_ARRAY(cmac, cmac_calculated, 16);
139 }
140
main(int argc,const char * argv[])141 int main (int argc, const char * argv[]){
142 return CommandLineTestRunner::RunAllTests(argc, argv);
143 }
144