David Jung / Mbed OS MAX86140_Authenication_SHA256_test

intiial commit

Dependencies:   MAX8614X USBDevice max32630hsp_test

main.cpp@18:a0356b3e6ed9, 2018-08-16 (annotated)

Committer:
phonemacro
Date:
Thu Aug 16 22:44:42 2018 +0000
Revision:
18:a0356b3e6ed9
Parent:
17:e260080d3468
Child:
20:39857996a7c7
minor changes;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phonemacro 0:9e5a4f845510 1 /**********************************************************************
phonemacro 1:854f8a89a527 2 * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved.
phonemacro 0:9e5a4f845510 3 *
phonemacro 0:9e5a4f845510 4 * Permission is hereby granted, free of charge, to any person obtaining a
phonemacro 0:9e5a4f845510 5 * copy of this software and associated documentation files (the "Software"),
phonemacro 0:9e5a4f845510 6 * to deal in the Software without restriction, including without limitation
phonemacro 0:9e5a4f845510 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
phonemacro 0:9e5a4f845510 8 * and/or sell copies of the Software, and to permit persons to whom the
phonemacro 0:9e5a4f845510 9 * Software is furnished to do so, subject to the following conditions:
phonemacro 0:9e5a4f845510 10 *
phonemacro 0:9e5a4f845510 11 * The above copyright notice and this permission notice shall be included
phonemacro 0:9e5a4f845510 12 * in all copies or substantial portions of the Software.
phonemacro 0:9e5a4f845510 13 *
phonemacro 0:9e5a4f845510 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
phonemacro 0:9e5a4f845510 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
phonemacro 0:9e5a4f845510 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
phonemacro 0:9e5a4f845510 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
phonemacro 0:9e5a4f845510 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
phonemacro 0:9e5a4f845510 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
phonemacro 0:9e5a4f845510 20 * OTHER DEALINGS IN THE SOFTWARE.
phonemacro 0:9e5a4f845510 21 *
phonemacro 0:9e5a4f845510 22 * Except as contained in this notice, the name of Maxim Integrated
phonemacro 0:9e5a4f845510 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
phonemacro 0:9e5a4f845510 24 * Products, Inc. Branding Policy.
phonemacro 0:9e5a4f845510 25 *
phonemacro 0:9e5a4f845510 26 * The mere transfer of this software does not imply any licenses
phonemacro 0:9e5a4f845510 27 * of trade secrets, proprietary technology, copyrights, patents,
phonemacro 0:9e5a4f845510 28 * trademarks, maskwork rights, or any other form of intellectual
phonemacro 0:9e5a4f845510 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
phonemacro 0:9e5a4f845510 30 * ownership rights.
phonemacro 0:9e5a4f845510 31 **********************************************************************/
phonemacro 0:9e5a4f845510 32
phonemacro 0:9e5a4f845510 33
phonemacro 0:9e5a4f845510 34 #include "mbed.h"
phonemacro 0:9e5a4f845510 35 //#include "max32630fthr.h"
phonemacro 0:9e5a4f845510 36 #include "max32630hsp.h"
phonemacro 0:9e5a4f845510 37 #include "MAX8614X.h"
phonemacro 0:9e5a4f845510 38 #include "USBSerial.h"
phonemacro 16:d0f8cf9f160d 39 void executeSha256(MAX8614X &m, uint8_t *challenge, unsigned int challengeLen, bool romID, uint32_t *response);
phonemacro 16:d0f8cf9f160d 40 bool isTheChipAuthenicated(uint32_t *expectedResponse, uint32_t *chipResponse);
phonemacro 7:5b7f7ec9efe0 41
phonemacro 16:d0f8cf9f160d 42 #define RESPONSE_LEN32 8
phonemacro 0:9e5a4f845510 43
phonemacro 0:9e5a4f845510 44 MAX32630HSP icarus(MAX32630HSP::VIO_1V8);
phonemacro 0:9e5a4f845510 45 // MAX32630FTHR mbed_board(MAX32630FTHR::VIO_1V8);
phonemacro 0:9e5a4f845510 46 SPI spi(P5_1, P5_2, P5_0); /* mosi, miso, sclk */
phonemacro 3:2272f89aad7e 47 //DigitalOut cs(P3_0);
phonemacro 3:2272f89aad7e 48 DigitalOut cs(P5_3);
phonemacro 18:a0356b3e6ed9 49 PinName interrupt_pin = P3_2;
phonemacro 0:9e5a4f845510 50 // Virtual serial port over USB
phonemacro 0:9e5a4f845510 51 USBSerial microUSB;
phonemacro 0:9e5a4f845510 52
phonemacro 0:9e5a4f845510 53 DigitalOut rLED(LED1);
phonemacro 0:9e5a4f845510 54 DigitalOut gLED(LED2);
phonemacro 0:9e5a4f845510 55 DigitalOut bLED(LED3);
phonemacro 0:9e5a4f845510 56 int main()
phonemacro 0:9e5a4f845510 57 {
phonemacro 7:5b7f7ec9efe0 58 #define CHALLENGE_SZ_NO_SECRET 20
phonemacro 15:2616528b4007 59 uint8_t challenge_A[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 15:2616528b4007 60 0x00, 0x00, 0x00, 0x01,
phonemacro 15:2616528b4007 61 0x00, 0x00, 0x00, 0x00,
phonemacro 15:2616528b4007 62 0x00, 0x00, 0x00, 0x00,
phonemacro 15:2616528b4007 63 0x00, 0x00, 0x00, 0x00,
phonemacro 15:2616528b4007 64 0x00, 0x00, 0x00, 0x00
phonemacro 15:2616528b4007 65 };
phonemacro 10:0b940aff3bb8 66 uint8_t challenge_1[CHALLENGE_SZ_NO_SECRET] = { // 160 bit
phonemacro 10:0b940aff3bb8 67 0x5e, 0x81, 0x35, 0x24,
phonemacro 10:0b940aff3bb8 68 0x56, 0x63, 0xd6, 0x09,
phonemacro 10:0b940aff3bb8 69 0x99, 0x8d, 0x7b, 0x0d,
phonemacro 10:0b940aff3bb8 70 0x52, 0x12, 0x84, 0x65,
phonemacro 10:0b940aff3bb8 71 0xcd, 0x0d, 0xe3, 0x01
phonemacro 4:46919eec2c28 72 };
phonemacro 4:46919eec2c28 73
phonemacro 14:1939758a03cf 74 uint8_t challenge_2[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 13:97854f761347 75 0xd2, 0xaa, 0x84, 0xc5,
phonemacro 13:97854f761347 76 0x72, 0x77, 0xf7, 0xe5,
phonemacro 13:97854f761347 77 0xdb, 0x8f, 0xd6, 0x12,
phonemacro 13:97854f761347 78 0x96, 0xce, 0x69, 0xf2,
phonemacro 13:97854f761347 79 0x4e, 0xc5, 0x7a, 0xe8
phonemacro 13:97854f761347 80 };
phonemacro 14:1939758a03cf 81
phonemacro 14:1939758a03cf 82 uint8_t challenge_3[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 14:1939758a03cf 83 0x21, 0x20, 0x22, 0x80,
phonemacro 14:1939758a03cf 84 0xcc, 0x9d, 0x45, 0xaa,
phonemacro 14:1939758a03cf 85 0xb8, 0x13, 0x3e, 0x96,
phonemacro 14:1939758a03cf 86 0xd6, 0x53, 0x38, 0x0d,
phonemacro 14:1939758a03cf 87 0x2a, 0xd5, 0xdd, 0x6b
phonemacro 14:1939758a03cf 88 };
phonemacro 15:2616528b4007 89 uint8_t challenge_4[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 15:2616528b4007 90 0x4c, 0x3c, 0x0a, 0xca,
phonemacro 15:2616528b4007 91 0x61, 0x8a, 0xbd, 0xf2,
phonemacro 15:2616528b4007 92 0x34, 0xd8, 0xb3, 0x41,
phonemacro 15:2616528b4007 93 0x12, 0x89, 0xf3, 0x78,
phonemacro 15:2616528b4007 94 0x65, 0xb6, 0x0d, 0xeb
phonemacro 15:2616528b4007 95 };
phonemacro 16:d0f8cf9f160d 96 uint32_t expectedResponse_1_romID[RESPONSE_LEN32] = { // 160 bit, no ROM
phonemacro 16:d0f8cf9f160d 97 0xfe3f805f,
phonemacro 16:d0f8cf9f160d 98 0x0af066bc,
phonemacro 16:d0f8cf9f160d 99 0xda0f55e2,
phonemacro 16:d0f8cf9f160d 100 0x0020ac16,
phonemacro 16:d0f8cf9f160d 101 0x13fa3406,
phonemacro 16:d0f8cf9f160d 102 0x59d0e5ae,
phonemacro 16:d0f8cf9f160d 103 0x79def309,
phonemacro 16:d0f8cf9f160d 104 0x685981a3
phonemacro 16:d0f8cf9f160d 105 };
phonemacro 17:e260080d3468 106 uint32_t expectedResponse_2_noRomID[RESPONSE_LEN32] = { // 160 bit, no ROM
phonemacro 17:e260080d3468 107 0x1a7135a2,
phonemacro 17:e260080d3468 108 0x51b99ca8,
phonemacro 17:e260080d3468 109 0xbdd9245e,
phonemacro 17:e260080d3468 110 0xb9c8e758,
phonemacro 17:e260080d3468 111 0x770ec1c4,
phonemacro 17:e260080d3468 112 0x474ffcc7,
phonemacro 17:e260080d3468 113 0x828afe4d,
phonemacro 17:e260080d3468 114 0x9cb3de6d
phonemacro 17:e260080d3468 115 };
phonemacro 16:d0f8cf9f160d 116 uint32_t chip_response[RESPONSE_LEN32];
phonemacro 16:d0f8cf9f160d 117 bool valid = 0;
phonemacro 16:d0f8cf9f160d 118
phonemacro 5:df9f75bee8ac 119 #define MAC_SZ 32
phonemacro 7:5b7f7ec9efe0 120
phonemacro 0:9e5a4f845510 121
phonemacro 0:9e5a4f845510 122 // daplink.printf("daplink serial port\r\n");
phonemacro 0:9e5a4f845510 123 // microUSB.printf("micro USB serial port\r\n");
phonemacro 0:9e5a4f845510 124 rLED = LED_ON;
phonemacro 0:9e5a4f845510 125 gLED = LED_ON;
phonemacro 0:9e5a4f845510 126 bLED = LED_OFF;
phonemacro 0:9e5a4f845510 127
phonemacro 0:9e5a4f845510 128 rLED = LED_OFF;
phonemacro 1:854f8a89a527 129 printf("\r\n\rmax86140 authenication software\r\n");
phonemacro 11:ec7998257ec2 130 MAX8614X m(spi,cs,interrupt_pin);
phonemacro 18:a0356b3e6ed9 131 m.init();
phonemacro 11:ec7998257ec2 132 // MAX8614X m(spi,cs,interrupt_pin);
phonemacro 7:5b7f7ec9efe0 133 // m.readRegister(MAX8614X::MAX8614X_PART_ID_REG, data, 1);
phonemacro 7:5b7f7ec9efe0 134 // printf("device id should be 0x24, reg %02X = %02X\r\n", MAX8614X::MAX8614X_PART_ID_REG, data[0]);
phonemacro 3:2272f89aad7e 135
phonemacro 17:e260080d3468 136 //● Compare MAC from MAX86140 wth Host's precalculated MAC.
phonemacro 17:e260080d3468 137 // executeSha256(m, challenge_A, CHALLENGE_SZ_NO_SECRET, 1, chip_response);
phonemacro 17:e260080d3468 138
phonemacro 16:d0f8cf9f160d 139 executeSha256(m, challenge_1, CHALLENGE_SZ_NO_SECRET, 1, chip_response);
phonemacro 17:e260080d3468 140 //● Check PASS or FAIL.
phonemacro 16:d0f8cf9f160d 141 valid = isTheChipAuthenicated(chip_response, expectedResponse_1_romID);
phonemacro 16:d0f8cf9f160d 142 if (valid)
phonemacro 16:d0f8cf9f160d 143 printf("\r\n Challenge 1 passed\r\n\r\n");
phonemacro 16:d0f8cf9f160d 144 else
phonemacro 16:d0f8cf9f160d 145 printf("\r\n Challenge 1 failed\r\n\r\n");
phonemacro 17:e260080d3468 146
phonemacro 17:e260080d3468 147 executeSha256(m, challenge_2, CHALLENGE_SZ_NO_SECRET, 0, chip_response);
phonemacro 17:e260080d3468 148 valid = isTheChipAuthenicated(chip_response, expectedResponse_2_noRomID);
phonemacro 17:e260080d3468 149 if (valid)
phonemacro 17:e260080d3468 150 printf("\r\n Challenge 2 passed\r\n\r\n");
phonemacro 17:e260080d3468 151 else
phonemacro 17:e260080d3468 152 printf("\r\n Challenge 2 failed\r\n\r\n");
phonemacro 16:d0f8cf9f160d 153 // executeSha256(m, challenge_3, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 16:d0f8cf9f160d 154 // executeSha256(m, challenge_4, CHALLENGE_SZ_NO_SECRET, 0);
phonemacro 17:e260080d3468 155 //● Check PASS or FAIL.
phonemacro 17:e260080d3468 156 //● Disable SHA_EN bit ( Write 0 to SHA_EN bit).
phonemacro 18:a0356b3e6ed9 157 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG, 0);
phonemacro 0:9e5a4f845510 158 while(1) {
phonemacro 1:854f8a89a527 159 gLED = !gLED;
phonemacro 0:9e5a4f845510 160 wait(1.0);
phonemacro 0:9e5a4f845510 161 }
phonemacro 0:9e5a4f845510 162 }
phonemacro 0:9e5a4f845510 163
phonemacro 16:d0f8cf9f160d 164 bool isTheChipAuthenicated(uint32_t *expectedResponse, uint32_t * chipResponse)
phonemacro 16:d0f8cf9f160d 165 {
phonemacro 16:d0f8cf9f160d 166 int i;
phonemacro 16:d0f8cf9f160d 167 for (i = 0; i < RESPONSE_LEN32; i++) {
phonemacro 16:d0f8cf9f160d 168 if (expectedResponse[i] != chipResponse[i])
phonemacro 16:d0f8cf9f160d 169 return 0;
phonemacro 16:d0f8cf9f160d 170 }
phonemacro 16:d0f8cf9f160d 171 return 1;
phonemacro 16:d0f8cf9f160d 172 }
phonemacro 16:d0f8cf9f160d 173
phonemacro 10:0b940aff3bb8 174 #if 0
phonemacro 7:5b7f7ec9efe0 175 void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen)
phonemacro 7:5b7f7ec9efe0 176 {
phonemacro 7:5b7f7ec9efe0 177 int i, j, k;
phonemacro 7:5b7f7ec9efe0 178 k = 0;
phonemacro 7:5b7f7ec9efe0 179 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 7:5b7f7ec9efe0 180 for (j = 3; j >= 0; j--) {
phonemacro 7:5b7f7ec9efe0 181 outData[j+(i*4)] = inData[k];
phonemacro 7:5b7f7ec9efe0 182 k++;
phonemacro 7:5b7f7ec9efe0 183 }
phonemacro 7:5b7f7ec9efe0 184 }
phonemacro 7:5b7f7ec9efe0 185 }
phonemacro 10:0b940aff3bb8 186 #endif
phonemacro 10:0b940aff3bb8 187 void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen)
phonemacro 10:0b940aff3bb8 188 {
phonemacro 10:0b940aff3bb8 189 int i, j, k;
phonemacro 10:0b940aff3bb8 190 k = 0;
phonemacro 10:0b940aff3bb8 191 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 10:0b940aff3bb8 192 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 193 outData[j+(i*4)] = inData[k];
phonemacro 10:0b940aff3bb8 194 // printf("%02X ",inData[k]);
phonemacro 10:0b940aff3bb8 195 k++;
phonemacro 10:0b940aff3bb8 196 }
phonemacro 10:0b940aff3bb8 197 // printf("\r\n");
phonemacro 10:0b940aff3bb8 198 }
phonemacro 10:0b940aff3bb8 199 for (i=0; i < challengeLen; i++) {
phonemacro 10:0b940aff3bb8 200 // if (!(i % 4))
phonemacro 10:0b940aff3bb8 201 // printf("\r\n ");
phonemacro 10:0b940aff3bb8 202 // printf("%02X ",outData[i]);
phonemacro 10:0b940aff3bb8 203 }
phonemacro 10:0b940aff3bb8 204 }
phonemacro 7:5b7f7ec9efe0 205
phonemacro 7:5b7f7ec9efe0 206
phonemacro 16:d0f8cf9f160d 207 void executeSha256(MAX8614X &m, uint8_t *challenge, unsigned int challengeLen, bool romID, uint32_t *response)
phonemacro 7:5b7f7ec9efe0 208 {
phonemacro 10:0b940aff3bb8 209 int i, j, k;
phonemacro 7:5b7f7ec9efe0 210 uint8_t macData[256];
phonemacro 10:0b940aff3bb8 211 uint8_t inData[256];
phonemacro 7:5b7f7ec9efe0 212 uint8_t xData[256];
phonemacro 10:0b940aff3bb8 213 uint32_t x32Data[64];
phonemacro 7:5b7f7ec9efe0 214 uint32_t tmpData;
phonemacro 10:0b940aff3bb8 215 const unsigned int responseLen32 = 8;
phonemacro 7:5b7f7ec9efe0 216 uint8_t data[5];
phonemacro 11:ec7998257ec2 217
phonemacro 18:a0356b3e6ed9 218 //● Enable SHA_DONE Interrupt
phonemacro 7:5b7f7ec9efe0 219 m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE2_REG, MAX8614X::MAX8614X_IE_SHA_DONE_EN);
phonemacro 7:5b7f7ec9efe0 220
phonemacro 7:5b7f7ec9efe0 221 m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE1_REG, 0); // Disable all other interrupts
phonemacro 7:5b7f7ec9efe0 222
phonemacro 13:97854f761347 223 //- Enable SHA_EN bit.
phonemacro 7:5b7f7ec9efe0 224 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN);
phonemacro 7:5b7f7ec9efe0 225
phonemacro 18:a0356b3e6ed9 226 //● Write 160-bit random challenge value to RAM using registers MEM_IDX and MEM_DATA.
phonemacro 7:5b7f7ec9efe0 227 // Enable Memory Write, Select Bank 0, address 0x00 to 0xFF
phonemacro 7:5b7f7ec9efe0 228 m.writeRegister(MAX8614X::MAX8614X_MEMORY_CONTROL_REG, MAX8614X::MAX8614X_MEMCNTRL_WR_EN_MASK | MAX8614X::MAX8614X_MEMCNTRL_BANK0_MASK);
phonemacro 7:5b7f7ec9efe0 229
phonemacro 7:5b7f7ec9efe0 230 printf("\r\n Raw Input Data\r\n\r\n");
phonemacro 7:5b7f7ec9efe0 231 for (i = 0; i < challengeLen; i++) {
phonemacro 10:0b940aff3bb8 232 if (!(i % 4))
phonemacro 10:0b940aff3bb8 233 printf("\r\n ");
phonemacro 10:0b940aff3bb8 234 printf("%02x", challenge[i]);
phonemacro 7:5b7f7ec9efe0 235 }
phonemacro 7:5b7f7ec9efe0 236 printf("\r\n");
phonemacro 10:0b940aff3bb8 237 #if 0
phonemacro 7:5b7f7ec9efe0 238 k = 0;
phonemacro 10:0b940aff3bb8 239 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 10:0b940aff3bb8 240 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 241
phonemacro 10:0b940aff3bb8 242 inData[j+(i*4)] = challenge[k];
phonemacro 10:0b940aff3bb8 243 k++;
phonemacro 7:5b7f7ec9efe0 244 }
phonemacro 10:0b940aff3bb8 245 }
phonemacro 10:0b940aff3bb8 246 #endif
phonemacro 10:0b940aff3bb8 247
phonemacro 10:0b940aff3bb8 248 transformData(challenge, xData, challengeLen);
phonemacro 7:5b7f7ec9efe0 249
phonemacro 7:5b7f7ec9efe0 250 printf("\r\n Transformed Input Data\r\n\r\n");
phonemacro 10:0b940aff3bb8 251 for (i = 0; i < challengeLen; i++) {
phonemacro 7:5b7f7ec9efe0 252 if (!(i % 4))
phonemacro 7:5b7f7ec9efe0 253 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 254 printf("%02x", xData[i]);
phonemacro 7:5b7f7ec9efe0 255 }
phonemacro 7:5b7f7ec9efe0 256 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 257 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 258
phonemacro 10:0b940aff3bb8 259 for (i = 0; i < (challengeLen); i++) {
phonemacro 7:5b7f7ec9efe0 260 m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i);
phonemacro 7:5b7f7ec9efe0 261 m.writeRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, xData[i]);
phonemacro 10:0b940aff3bb8 262 //}
phonemacro 10:0b940aff3bb8 263 }
phonemacro 7:5b7f7ec9efe0 264 printf("%\r\n");
phonemacro 7:5b7f7ec9efe0 265 // The message block consists of a 160-bit secret, a 160-bit challenge and 192 bits of constant data. Optionally, the 64-bit
phonemacro 7:5b7f7ec9efe0 266 // ROM ID replaces 64 of the 192 bits of constant data used in the hash operation. 16 bits out of the 160-bit secret and 16
phonemacro 7:5b7f7ec9efe0 267 // bits of ROM ID are programmable–8 bits each in metal and 8 bits each in OTP bits
phonemacro 13:97854f761347 268 //- Write command, with ROM ID (0x35) or without ROM ID (0x36), to SHA_CMD register
phonemacro 12:fc888315e5fd 269 if (romID) {
phonemacro 12:fc888315e5fd 270 printf("ROMID \r\n");
phonemacro 13:97854f761347 271 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 12:fc888315e5fd 272 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 17:e260080d3468 273 // wait(1);
phonemacro 12:fc888315e5fd 274 }
phonemacro 12:fc888315e5fd 275 else
phonemacro 12:fc888315e5fd 276 {
phonemacro 12:fc888315e5fd 277 printf("no ROMID \r\n");
phonemacro 13:97854f761347 278 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 12:fc888315e5fd 279 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 17:e260080d3468 280 // wait(1);
phonemacro 12:fc888315e5fd 281 }
phonemacro 12:fc888315e5fd 282
phonemacro 12:fc888315e5fd 283
phonemacro 12:fc888315e5fd 284 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 7:5b7f7ec9efe0 285 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 7:5b7f7ec9efe0 286
phonemacro 7:5b7f7ec9efe0 287
phonemacro 10:0b940aff3bb8 288 m.readRegister(MAX8614X::MAX8614X_SHA_CMD_REG, data, 1);
phonemacro 14:1939758a03cf 289 /// printf("sha cmd reg should be 0x35 mac rom id, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CMD_REG, data[0]);
phonemacro 10:0b940aff3bb8 290 m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1);
phonemacro 14:1939758a03cf 291 /// printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]);
phonemacro 7:5b7f7ec9efe0 292 //● Write 1 to SHA_START and 1 to SHA_EN bit.
phonemacro 7:5b7f7ec9efe0 293 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN | MAX8614X::MAX8614X_SHACFG_SHA_START);
phonemacro 10:0b940aff3bb8 294 m.readRegister(MAX8614X::MAX8614X_SHA_CFG_REG, data, 1);
phonemacro 14:1939758a03cf 295 /// printf("sha CFG reg should be 0x3, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CFG_REG, data[0]);
phonemacro 7:5b7f7ec9efe0 296
phonemacro 18:a0356b3e6ed9 297 //● Wait for SHA_DONE.
phonemacro 7:5b7f7ec9efe0 298 data[0] = 0;
phonemacro 17:e260080d3468 299 k = 0;
phonemacro 17:e260080d3468 300 while(!data[0] && k < 100) {
phonemacro 7:5b7f7ec9efe0 301 m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1);
phonemacro 17:e260080d3468 302 k++;
phonemacro 7:5b7f7ec9efe0 303 }
phonemacro 7:5b7f7ec9efe0 304 // ● Read 256 MAC value from RAM using registers MEM_IDX and MEM_DATA.
phonemacro 10:0b940aff3bb8 305 printf("\r\n Raw Output\r\n\r\n");
phonemacro 7:5b7f7ec9efe0 306 for (i = 64; i < 64+32; i++) {
phonemacro 7:5b7f7ec9efe0 307 if (!(i % 4))
phonemacro 7:5b7f7ec9efe0 308 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 309 m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i);
phonemacro 7:5b7f7ec9efe0 310 m.readRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, data, 1);
phonemacro 10:0b940aff3bb8 311 xData[i-64] = data[0];
phonemacro 7:5b7f7ec9efe0 312 printf("%02x", data[0]);
phonemacro 7:5b7f7ec9efe0 313 }
phonemacro 10:0b940aff3bb8 314 printf("%\r\n");
phonemacro 10:0b940aff3bb8 315
phonemacro 10:0b940aff3bb8 316 transformData(xData,macData, 32);
phonemacro 10:0b940aff3bb8 317 #if 0
phonemacro 10:0b940aff3bb8 318 printf("\r\n Formatted Response\r\n\r\n");
phonemacro 10:0b940aff3bb8 319 for (i = 0; i < 32; i++) {
phonemacro 10:0b940aff3bb8 320 if (!(i % 4))
phonemacro 10:0b940aff3bb8 321 printf("\r\n ");
phonemacro 10:0b940aff3bb8 322 printf("%02x", macData[i]);
phonemacro 10:0b940aff3bb8 323 }
phonemacro 10:0b940aff3bb8 324 printf("\r\n\r\n");
phonemacro 10:0b940aff3bb8 325
phonemacro 10:0b940aff3bb8 326 #endif
phonemacro 10:0b940aff3bb8 327 // transform data to Little-Endian
phonemacro 10:0b940aff3bb8 328 k = 0;
phonemacro 10:0b940aff3bb8 329 for (i = 0; i < (responseLen32); i++) {
phonemacro 10:0b940aff3bb8 330 tmpData = challenge[i];
phonemacro 10:0b940aff3bb8 331 x32Data[i] = 0;
phonemacro 10:0b940aff3bb8 332 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 333 x32Data[i] = x32Data[i] << 8;
phonemacro 10:0b940aff3bb8 334 x32Data[i] |= macData[k] & 0xFF;
phonemacro 10:0b940aff3bb8 335 k++;
phonemacro 10:0b940aff3bb8 336 }
phonemacro 10:0b940aff3bb8 337
phonemacro 10:0b940aff3bb8 338 }
phonemacro 10:0b940aff3bb8 339
phonemacro 10:0b940aff3bb8 340 printf("\r\n Formatted Response\r\n\r\n");
phonemacro 10:0b940aff3bb8 341 for (i = 0; i < responseLen32; i++) {
phonemacro 10:0b940aff3bb8 342 printf(" %08X \r\n",x32Data[i]);
phonemacro 16:d0f8cf9f160d 343 response[i] = x32Data[i];
phonemacro 10:0b940aff3bb8 344 }
phonemacro 10:0b940aff3bb8 345
phonemacro 10:0b940aff3bb8 346
phonemacro 7:5b7f7ec9efe0 347 }