David Jung / Mbed OS MAX86140_Authenication_SHA256_test

intiial commit

Dependencies:   MAX8614X USBDevice max32630hsp_test

main.cpp@14:1939758a03cf, 2018-08-16 (annotated)

Committer:
phonemacro
Date:
Thu Aug 16 21:19:32 2018 +0000
Revision:
14:1939758a03cf
Parent:
13:97854f761347
Child:
15:2616528b4007
three challenges ok

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 12:fc888315e5fd 39 void executeSha256(MAX8614X &m, uint8_t *challenge, unsigned int challengeLen, bool romID);
phonemacro 7:5b7f7ec9efe0 40
phonemacro 0:9e5a4f845510 41
phonemacro 0:9e5a4f845510 42 MAX32630HSP icarus(MAX32630HSP::VIO_1V8);
phonemacro 0:9e5a4f845510 43 // MAX32630FTHR mbed_board(MAX32630FTHR::VIO_1V8);
phonemacro 0:9e5a4f845510 44 SPI spi(P5_1, P5_2, P5_0); /* mosi, miso, sclk */
phonemacro 3:2272f89aad7e 45 //DigitalOut cs(P3_0);
phonemacro 3:2272f89aad7e 46 DigitalOut cs(P5_3);
phonemacro 6:0ec9dd0e8eb0 47 //PinName interrupt_pin = P3_3;
phonemacro 6:0ec9dd0e8eb0 48 //PinnName interrupt_pin = P5_7;
phonemacro 6:0ec9dd0e8eb0 49 //PinName interrupt_pin = P5_5;
phonemacro 6:0ec9dd0e8eb0 50 //PinName interrupt_pin = P3_6;
phonemacro 6:0ec9dd0e8eb0 51 //PinName interrupt_pin = P3_7;
phonemacro 6:0ec9dd0e8eb0 52 //PinName interrupt_pin = P3_2;
phonemacro 6:0ec9dd0e8eb0 53 PinName interrupt_pin = P5_4;
phonemacro 0:9e5a4f845510 54 // Virtual serial port over USB
phonemacro 0:9e5a4f845510 55 USBSerial microUSB;
phonemacro 0:9e5a4f845510 56
phonemacro 0:9e5a4f845510 57 DigitalOut rLED(LED1);
phonemacro 0:9e5a4f845510 58 DigitalOut gLED(LED2);
phonemacro 0:9e5a4f845510 59 DigitalOut bLED(LED3);
phonemacro 0:9e5a4f845510 60 int main()
phonemacro 0:9e5a4f845510 61 {
phonemacro 7:5b7f7ec9efe0 62 #define CHALLENGE_SZ_NO_SECRET 20
phonemacro 10:0b940aff3bb8 63 uint8_t challenge_1[CHALLENGE_SZ_NO_SECRET] = { // 160 bit
phonemacro 10:0b940aff3bb8 64 0x5e, 0x81, 0x35, 0x24,
phonemacro 10:0b940aff3bb8 65 0x56, 0x63, 0xd6, 0x09,
phonemacro 10:0b940aff3bb8 66 0x99, 0x8d, 0x7b, 0x0d,
phonemacro 10:0b940aff3bb8 67 0x52, 0x12, 0x84, 0x65,
phonemacro 10:0b940aff3bb8 68 0xcd, 0x0d, 0xe3, 0x01
phonemacro 4:46919eec2c28 69 };
phonemacro 4:46919eec2c28 70
phonemacro 14:1939758a03cf 71 uint8_t challenge_2[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 13:97854f761347 72 0xd2, 0xaa, 0x84, 0xc5,
phonemacro 13:97854f761347 73 0x72, 0x77, 0xf7, 0xe5,
phonemacro 13:97854f761347 74 0xdb, 0x8f, 0xd6, 0x12,
phonemacro 13:97854f761347 75 0x96, 0xce, 0x69, 0xf2,
phonemacro 13:97854f761347 76 0x4e, 0xc5, 0x7a, 0xe8
phonemacro 13:97854f761347 77 };
phonemacro 14:1939758a03cf 78
phonemacro 14:1939758a03cf 79 uint8_t challenge_3[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 14:1939758a03cf 80 0x21, 0x20, 0x22, 0x80,
phonemacro 14:1939758a03cf 81 0xcc, 0x9d, 0x45, 0xaa,
phonemacro 14:1939758a03cf 82 0xb8, 0x13, 0x3e, 0x96,
phonemacro 14:1939758a03cf 83 0xd6, 0x53, 0x38, 0x0d,
phonemacro 14:1939758a03cf 84 0x2a, 0xd5, 0xdd, 0x6b
phonemacro 14:1939758a03cf 85 };
phonemacro 5:df9f75bee8ac 86 #define MAC_SZ 32
phonemacro 7:5b7f7ec9efe0 87
phonemacro 0:9e5a4f845510 88
phonemacro 0:9e5a4f845510 89 // daplink.printf("daplink serial port\r\n");
phonemacro 0:9e5a4f845510 90 // microUSB.printf("micro USB serial port\r\n");
phonemacro 0:9e5a4f845510 91 rLED = LED_ON;
phonemacro 0:9e5a4f845510 92 gLED = LED_ON;
phonemacro 0:9e5a4f845510 93 bLED = LED_OFF;
phonemacro 0:9e5a4f845510 94
phonemacro 0:9e5a4f845510 95 rLED = LED_OFF;
phonemacro 1:854f8a89a527 96 printf("\r\n\rmax86140 authenication software\r\n");
phonemacro 11:ec7998257ec2 97 MAX8614X m(spi,cs,interrupt_pin);
phonemacro 11:ec7998257ec2 98 // MAX8614X m(spi,cs,interrupt_pin);
phonemacro 7:5b7f7ec9efe0 99 // m.readRegister(MAX8614X::MAX8614X_PART_ID_REG, data, 1);
phonemacro 7:5b7f7ec9efe0 100 // printf("device id should be 0x24, reg %02X = %02X\r\n", MAX8614X::MAX8614X_PART_ID_REG, data[0]);
phonemacro 3:2272f89aad7e 101
phonemacro 12:fc888315e5fd 102 executeSha256(m, challenge_1, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 14:1939758a03cf 103 // executeSha256(m, challenge_2, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 13:97854f761347 104 executeSha256(m, challenge_2, CHALLENGE_SZ_NO_SECRET, 0);
phonemacro 14:1939758a03cf 105 executeSha256(m, challenge_3, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 13:97854f761347 106 //- Compare MAC from MAX86140 wth Host's precalculated MAC.
phonemacro 13:97854f761347 107 //- Check PASS or FAIL.
phonemacro 13:97854f761347 108 //- Disable SHA_EN bit ( Write 0 to SHA_EN bit).
phonemacro 0:9e5a4f845510 109 while(1) {
phonemacro 1:854f8a89a527 110 gLED = !gLED;
phonemacro 0:9e5a4f845510 111 wait(1.0);
phonemacro 0:9e5a4f845510 112 }
phonemacro 0:9e5a4f845510 113 }
phonemacro 0:9e5a4f845510 114
phonemacro 10:0b940aff3bb8 115 #if 0
phonemacro 7:5b7f7ec9efe0 116 void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen)
phonemacro 7:5b7f7ec9efe0 117 {
phonemacro 7:5b7f7ec9efe0 118 int i, j, k;
phonemacro 7:5b7f7ec9efe0 119 k = 0;
phonemacro 7:5b7f7ec9efe0 120 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 7:5b7f7ec9efe0 121 for (j = 3; j >= 0; j--) {
phonemacro 7:5b7f7ec9efe0 122 outData[j+(i*4)] = inData[k];
phonemacro 7:5b7f7ec9efe0 123 k++;
phonemacro 7:5b7f7ec9efe0 124 }
phonemacro 7:5b7f7ec9efe0 125 }
phonemacro 7:5b7f7ec9efe0 126 }
phonemacro 10:0b940aff3bb8 127 #endif
phonemacro 10:0b940aff3bb8 128 void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen)
phonemacro 10:0b940aff3bb8 129 {
phonemacro 10:0b940aff3bb8 130 int i, j, k;
phonemacro 10:0b940aff3bb8 131 k = 0;
phonemacro 10:0b940aff3bb8 132 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 10:0b940aff3bb8 133 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 134 outData[j+(i*4)] = inData[k];
phonemacro 10:0b940aff3bb8 135 // printf("%02X ",inData[k]);
phonemacro 10:0b940aff3bb8 136 k++;
phonemacro 10:0b940aff3bb8 137 }
phonemacro 10:0b940aff3bb8 138 // printf("\r\n");
phonemacro 10:0b940aff3bb8 139 }
phonemacro 10:0b940aff3bb8 140 for (i=0; i < challengeLen; i++) {
phonemacro 10:0b940aff3bb8 141 // if (!(i % 4))
phonemacro 10:0b940aff3bb8 142 // printf("\r\n ");
phonemacro 10:0b940aff3bb8 143 // printf("%02X ",outData[i]);
phonemacro 10:0b940aff3bb8 144 }
phonemacro 10:0b940aff3bb8 145 }
phonemacro 7:5b7f7ec9efe0 146
phonemacro 7:5b7f7ec9efe0 147
phonemacro 12:fc888315e5fd 148 void executeSha256(MAX8614X &m, uint8_t *challenge, unsigned int challengeLen, bool romID)
phonemacro 7:5b7f7ec9efe0 149 {
phonemacro 10:0b940aff3bb8 150 int i, j, k;
phonemacro 7:5b7f7ec9efe0 151 uint8_t macData[256];
phonemacro 10:0b940aff3bb8 152 uint8_t inData[256];
phonemacro 7:5b7f7ec9efe0 153 uint8_t xData[256];
phonemacro 10:0b940aff3bb8 154 uint32_t x32Data[64];
phonemacro 7:5b7f7ec9efe0 155 uint32_t tmpData;
phonemacro 10:0b940aff3bb8 156 const unsigned int responseLen32 = 8;
phonemacro 7:5b7f7ec9efe0 157 uint8_t data[5];
phonemacro 11:ec7998257ec2 158
phonemacro 13:97854f761347 159 //- Enable SHA_DONE Interrupt
phonemacro 7:5b7f7ec9efe0 160 m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE2_REG, MAX8614X::MAX8614X_IE_SHA_DONE_EN);
phonemacro 7:5b7f7ec9efe0 161
phonemacro 7:5b7f7ec9efe0 162 m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE1_REG, 0); // Disable all other interrupts
phonemacro 7:5b7f7ec9efe0 163
phonemacro 13:97854f761347 164 //- Enable SHA_EN bit.
phonemacro 7:5b7f7ec9efe0 165 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN);
phonemacro 7:5b7f7ec9efe0 166
phonemacro 13:97854f761347 167 //- Write 160-bit random challenge value to RAM using registers MEM_IDX and MEM_DATA.
phonemacro 7:5b7f7ec9efe0 168 // Enable Memory Write, Select Bank 0, address 0x00 to 0xFF
phonemacro 7:5b7f7ec9efe0 169 m.writeRegister(MAX8614X::MAX8614X_MEMORY_CONTROL_REG, MAX8614X::MAX8614X_MEMCNTRL_WR_EN_MASK | MAX8614X::MAX8614X_MEMCNTRL_BANK0_MASK);
phonemacro 7:5b7f7ec9efe0 170
phonemacro 7:5b7f7ec9efe0 171 printf("\r\n Raw Input Data\r\n\r\n");
phonemacro 7:5b7f7ec9efe0 172 for (i = 0; i < challengeLen; i++) {
phonemacro 10:0b940aff3bb8 173 if (!(i % 4))
phonemacro 10:0b940aff3bb8 174 printf("\r\n ");
phonemacro 10:0b940aff3bb8 175 printf("%02x", challenge[i]);
phonemacro 7:5b7f7ec9efe0 176 }
phonemacro 7:5b7f7ec9efe0 177 printf("\r\n");
phonemacro 10:0b940aff3bb8 178 #if 0
phonemacro 7:5b7f7ec9efe0 179 k = 0;
phonemacro 10:0b940aff3bb8 180 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 10:0b940aff3bb8 181 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 182
phonemacro 10:0b940aff3bb8 183 inData[j+(i*4)] = challenge[k];
phonemacro 10:0b940aff3bb8 184 k++;
phonemacro 7:5b7f7ec9efe0 185 }
phonemacro 10:0b940aff3bb8 186 }
phonemacro 10:0b940aff3bb8 187 #endif
phonemacro 10:0b940aff3bb8 188
phonemacro 10:0b940aff3bb8 189 transformData(challenge, xData, challengeLen);
phonemacro 7:5b7f7ec9efe0 190
phonemacro 7:5b7f7ec9efe0 191 printf("\r\n Transformed Input Data\r\n\r\n");
phonemacro 10:0b940aff3bb8 192 for (i = 0; i < challengeLen; i++) {
phonemacro 7:5b7f7ec9efe0 193 if (!(i % 4))
phonemacro 7:5b7f7ec9efe0 194 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 195 printf("%02x", xData[i]);
phonemacro 7:5b7f7ec9efe0 196 }
phonemacro 7:5b7f7ec9efe0 197 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 198 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 199
phonemacro 10:0b940aff3bb8 200 for (i = 0; i < (challengeLen); i++) {
phonemacro 7:5b7f7ec9efe0 201 m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i);
phonemacro 7:5b7f7ec9efe0 202 m.writeRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, xData[i]);
phonemacro 10:0b940aff3bb8 203 //}
phonemacro 10:0b940aff3bb8 204 }
phonemacro 7:5b7f7ec9efe0 205 printf("%\r\n");
phonemacro 7:5b7f7ec9efe0 206 // 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 207 // 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 208 // bits of ROM ID are programmable–8 bits each in metal and 8 bits each in OTP bits
phonemacro 13:97854f761347 209 //- Write command, with ROM ID (0x35) or without ROM ID (0x36), to SHA_CMD register
phonemacro 12:fc888315e5fd 210 if (romID) {
phonemacro 12:fc888315e5fd 211 printf("ROMID \r\n");
phonemacro 13:97854f761347 212 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 12:fc888315e5fd 213 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 12:fc888315e5fd 214 wait(1);
phonemacro 12:fc888315e5fd 215 }
phonemacro 12:fc888315e5fd 216 else
phonemacro 12:fc888315e5fd 217 {
phonemacro 12:fc888315e5fd 218 printf("no ROMID \r\n");
phonemacro 13:97854f761347 219 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 12:fc888315e5fd 220 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 12:fc888315e5fd 221 wait(1);
phonemacro 12:fc888315e5fd 222 }
phonemacro 12:fc888315e5fd 223
phonemacro 12:fc888315e5fd 224
phonemacro 12:fc888315e5fd 225 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 7:5b7f7ec9efe0 226 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 7:5b7f7ec9efe0 227
phonemacro 7:5b7f7ec9efe0 228
phonemacro 10:0b940aff3bb8 229 m.readRegister(MAX8614X::MAX8614X_SHA_CMD_REG, data, 1);
phonemacro 14:1939758a03cf 230 /// 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 231 m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1);
phonemacro 14:1939758a03cf 232 /// printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]);
phonemacro 7:5b7f7ec9efe0 233 //● Write 1 to SHA_START and 1 to SHA_EN bit.
phonemacro 7:5b7f7ec9efe0 234 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN | MAX8614X::MAX8614X_SHACFG_SHA_START);
phonemacro 10:0b940aff3bb8 235 m.readRegister(MAX8614X::MAX8614X_SHA_CFG_REG, data, 1);
phonemacro 14:1939758a03cf 236 /// printf("sha CFG reg should be 0x3, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CFG_REG, data[0]);
phonemacro 7:5b7f7ec9efe0 237
phonemacro 10:0b940aff3bb8 238 //● Wait for SHA_DONE interrupt.
phonemacro 10:0b940aff3bb8 239 m.clearShaComplete();
phonemacro 7:5b7f7ec9efe0 240 data[0] = 0;
phonemacro 10:0b940aff3bb8 241 // while(!m.isShaComplete()) {
phonemacro 10:0b940aff3bb8 242 while(!m.isShaComplete() && !data[0] ) {
phonemacro 7:5b7f7ec9efe0 243 m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1);
phonemacro 10:0b940aff3bb8 244 printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]);
phonemacro 10:0b940aff3bb8 245
phonemacro 7:5b7f7ec9efe0 246 }
phonemacro 7:5b7f7ec9efe0 247 // ● Read 256 MAC value from RAM using registers MEM_IDX and MEM_DATA.
phonemacro 10:0b940aff3bb8 248 printf("\r\n Raw Output\r\n\r\n");
phonemacro 7:5b7f7ec9efe0 249 for (i = 64; i < 64+32; i++) {
phonemacro 7:5b7f7ec9efe0 250 if (!(i % 4))
phonemacro 7:5b7f7ec9efe0 251 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 252 m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i);
phonemacro 7:5b7f7ec9efe0 253 m.readRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, data, 1);
phonemacro 10:0b940aff3bb8 254 xData[i-64] = data[0];
phonemacro 7:5b7f7ec9efe0 255 printf("%02x", data[0]);
phonemacro 7:5b7f7ec9efe0 256 }
phonemacro 10:0b940aff3bb8 257 printf("%\r\n");
phonemacro 10:0b940aff3bb8 258
phonemacro 10:0b940aff3bb8 259 transformData(xData,macData, 32);
phonemacro 10:0b940aff3bb8 260 #if 0
phonemacro 10:0b940aff3bb8 261 printf("\r\n Formatted Response\r\n\r\n");
phonemacro 10:0b940aff3bb8 262 for (i = 0; i < 32; i++) {
phonemacro 10:0b940aff3bb8 263 if (!(i % 4))
phonemacro 10:0b940aff3bb8 264 printf("\r\n ");
phonemacro 10:0b940aff3bb8 265 printf("%02x", macData[i]);
phonemacro 10:0b940aff3bb8 266 }
phonemacro 10:0b940aff3bb8 267 printf("\r\n\r\n");
phonemacro 10:0b940aff3bb8 268
phonemacro 10:0b940aff3bb8 269 #endif
phonemacro 10:0b940aff3bb8 270 // transform data to Little-Endian
phonemacro 10:0b940aff3bb8 271 k = 0;
phonemacro 10:0b940aff3bb8 272 for (i = 0; i < (responseLen32); i++) {
phonemacro 10:0b940aff3bb8 273 tmpData = challenge[i];
phonemacro 10:0b940aff3bb8 274 x32Data[i] = 0;
phonemacro 10:0b940aff3bb8 275 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 276 x32Data[i] = x32Data[i] << 8;
phonemacro 10:0b940aff3bb8 277 x32Data[i] |= macData[k] & 0xFF;
phonemacro 10:0b940aff3bb8 278 k++;
phonemacro 10:0b940aff3bb8 279 }
phonemacro 10:0b940aff3bb8 280
phonemacro 10:0b940aff3bb8 281 }
phonemacro 10:0b940aff3bb8 282
phonemacro 10:0b940aff3bb8 283 printf("\r\n Formatted Response\r\n\r\n");
phonemacro 10:0b940aff3bb8 284 for (i = 0; i < responseLen32; i++) {
phonemacro 10:0b940aff3bb8 285 printf(" %08X \r\n",x32Data[i]);
phonemacro 10:0b940aff3bb8 286 }
phonemacro 10:0b940aff3bb8 287
phonemacro 10:0b940aff3bb8 288
phonemacro 7:5b7f7ec9efe0 289 }