intiial commit
Dependencies: MAX8614X USBDevice max32630hsp_test
main.cpp
- Committer:
- phonemacro
- Date:
- 2018-08-17
- Revision:
- 24:3981488a0abd
- Parent:
- 23:4afef8872432
File content as of revision 24:3981488a0abd:
/********************************************************************** * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. **********************************************************************/ #include "mbed.h" //#include "max32630fthr.h" #include "max32630hsp.h" #include "MAX8614X.h" #include "USBSerial.h" //#define DEBUG_ON 1 void executeSha256(MAX8614X &m, uint32_t *challenge, unsigned int challengeLen, bool romID, uint32_t *response); bool isTheChipAuthenicated(uint32_t *expectedResponse, uint32_t *chipResponse); #define RESPONSE_LEN32 8 MAX32630HSP icarus(MAX32630HSP::VIO_1V8); // MAX32630FTHR mbed_board(MAX32630FTHR::VIO_1V8); SPI spi(P5_1, P5_2, P5_0); /* mosi, miso, sclk */ DigitalOut cs(P5_3); PinName interrupt_pin = P3_2; // Virtual serial port over USB USBSerial microUSB; DigitalOut rLED(LED1); DigitalOut gLED(LED2); DigitalOut bLED(LED3); // main() runs in its own thread in the OS // (note the calls to Thread::wait below for delays) /** * @brief Sample main program for SHA256 Authenication using the MAX86140 * @version 1.0000.0 * * @details Sample main program for MAX86140 authenication. * The prints are sent to the terminal window (9600, 8n1). * The program issues challenges to the MAX86140 SHA256 athenicator. * The responses are compared to the expected responses. * To run the program, drag and drop the .bin file into the * DAPLINK folder. After it finishes flashing, cycle the power or * reset the board. */ int main() { #define CHALLENGE32_LEN 5 uint32_t challenge_A[CHALLENGE32_LEN] = { // 160 bit, no ROM 0x00000001, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }; uint32_t expectedResponse_A_romID[RESPONSE_LEN32] = { // 160 bit, no ROM 0xf987d79a, 0xeb778ec7, 0x33861bc8, 0x745d4082, 0x921e02fe, 0x727d93c8, 0x218e53ee, 0x904e0c6b }; uint32_t challenge_1[CHALLENGE32_LEN] = { // 160 bit 0x5e813524, 0x5663d609, 0x998d7b0d, 0x52128465, 0xcd0de301 }; uint32_t expectedResponse_1_romID[RESPONSE_LEN32] = { // 160 bit 0xfe3f805f, 0x0af066bc, 0xda0f55e2, 0x0020ac16, 0x13fa3406, 0x59d0e5ae, 0x79def309, 0x685981a3 }; uint32_t challenge_2[CHALLENGE32_LEN] = { // 160 bit, no ROM 0xd2aa84c5, 0x7277f7e5, 0xdb8fd612, 0x96ce69f2, 0x4ec57ae8 }; uint32_t expectedResponse_2_noRomID[RESPONSE_LEN32] = { // 160 bit, no ROM 0x1a7135a2, 0x51b99ca8, 0xbdd9245e, 0xb9c8e758, 0x770ec1c4, 0x474ffcc7, 0x828afe4d, 0x9cb3de6d }; uint32_t challenge_3[CHALLENGE32_LEN] = { // 160 bit 0x21202280, 0xcc9d45aa, 0xb8133e96, 0xd653380d, 0x2ad5dd6b }; uint32_t expectedResponse_3_romID[RESPONSE_LEN32] = { // 160 bit 0xe7750b8d, 0xe29d9279, 0x7cdc7053, 0xa9f92519, 0xa1e59d93, 0x19cd930d, 0xfb0fc974, 0x2da0781e }; uint32_t challenge_4[CHALLENGE32_LEN] = { // 160 bit, no ROM 0x4c3c0aca, 0x618abdf2, 0x34d8b341, 0x1289f378, 0x65b60deb }; uint32_t expectedResponse_4_noRomID[RESPONSE_LEN32] = { // 160 bit, no ROM 0xae740f91, 0x8d6f2d58, 0x7486b0ba, 0xe9a84580, 0xfe9ce593, 0x58d66c7d, 0xc993d165, 0xe5ae5983 }; uint32_t chip_response[RESPONSE_LEN32]; bool valid = 0; rLED = LED_OFF; gLED = LED_ON; bLED = LED_OFF; printf("\r\n\rmax86140 authenication software\r\n"); MAX8614X m(spi,cs,interrupt_pin); m.init(); //● Compare MAC from MAX86140 wth Host's precalculated MAC. executeSha256(m, challenge_A, CHALLENGE32_LEN, 1, chip_response); //● Check PASS or FAIL. valid = isTheChipAuthenicated(chip_response, expectedResponse_A_romID); if (valid) printf("\r\n Challenge A passed\r\n\r\n"); else printf("\r\n Challenge A failed\r\n\r\n"); //● Compare MAC from MAX86140 wth Host's precalculated MAC. executeSha256(m, challenge_1, CHALLENGE32_LEN, 1, chip_response); //● Check PASS or FAIL. valid = isTheChipAuthenicated(chip_response, expectedResponse_1_romID); if (valid) printf("\r\n Challenge 1 passed\r\n\r\n"); else printf("\r\n Challenge 1 failed\r\n\r\n"); executeSha256(m, challenge_2, CHALLENGE32_LEN, 0, chip_response); valid = isTheChipAuthenicated(chip_response, expectedResponse_2_noRomID); if (valid) printf("\r\n Challenge 2 passed\r\n\r\n"); else printf("\r\n Challenge 2 failed\r\n\r\n"); executeSha256(m, challenge_3, CHALLENGE32_LEN, 1, chip_response); valid = isTheChipAuthenicated(chip_response, expectedResponse_3_romID); if (valid) printf("\r\n Challenge 3 passed\r\n\r\n"); else printf("\r\n Challenge 3 failed\r\n\r\n"); executeSha256(m, challenge_4, CHALLENGE32_LEN, 0, chip_response); valid = isTheChipAuthenicated(chip_response, expectedResponse_4_noRomID); if (valid) printf("\r\n Challenge 4 passed\r\n\r\n"); else printf("\r\n Challenge 4 failed\r\n\r\n"); //● Disable SHA_EN bit ( Write 0 to SHA_EN bit). m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG, 0); while(1) { gLED = !gLED; wait(1.0); } } bool isTheChipAuthenicated(uint32_t *expectedResponse, uint32_t * chipResponse) { int i; for (i = 0; i < RESPONSE_LEN32; i++) { if (expectedResponse[i] != chipResponse[i]) return 0; } return 1; } void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen) { int i, j, k; k = 0; for (i = 0; i < (challengeLen/4); i++) { for (j = 3; j >= 0; j--) { outData[j+(i*4)] = inData[k]; k++; } } } void executeSha256(MAX8614X &m, uint32_t *challenge, unsigned int challengeLen, bool romID, uint32_t *response) { int i, j, k; uint8_t macData[256]; uint8_t xData[256]; uint32_t x32Data[64]; uint32_t tmpData; const unsigned int responseLen32 = 8; uint8_t data[5]; //● Enable SHA_DONE Interrupt m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE2_REG, MAX8614X::MAX8614X_IE_SHA_DONE_EN); m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE1_REG, 0); // Disable all other interrupts //- Enable SHA_EN bit. m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN); //● Write 160-bit random challenge value to RAM using registers MEM_IDX and MEM_DATA. // Enable Memory Write, Select Bank 0, address 0x00 to 0xFF m.writeRegister(MAX8614X::MAX8614X_MEMORY_CONTROL_REG, MAX8614X::MAX8614X_MEMCNTRL_WR_EN_MASK | MAX8614X::MAX8614X_MEMCNTRL_BANK0_MASK); for (i = 0; i < 5; i++) { x32Data[i] = challenge[i]; for (j = 0; j <= 3; j++) { xData[(i*4)+j] = x32Data[i] & 0xFF; x32Data[i] = x32Data[i] >> 8; k++; } } #ifdef DEBUG_ON printf("\r\n Raw Input Data\r\n\r\n"); for (i = 0; i < challengeLen; i++) { printf("%08x\r\n", challenge[i]); } printf("\r\n"); #endif //transformData(challenge, xData, challengeLen); #ifdef DEBUG_ON printf("\r\n Transformed Input Data\r\n\r\n"); for (i = 0; i < challengeLen*4; i++) { if (!(i % 4)) printf("\r\n "); printf("%02x", xData[i]); } printf("\r\n "); #endif for (i = 0; i < (challengeLen*4); i++) { m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i); m.writeRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, xData[i]); //} } // The message block consists of a 160-bit secret, a 160-bit challenge and 192 bits of constant data. Optionally, the 64-bit // 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 // bits of ROM ID are programmable–8 bits each in metal and 8 bits each in OTP bits //● Write command, with ROM ID (0x35) or without ROM ID (0x36), to SHA_CMD register if (romID) { m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID); } else { m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID); } m.readRegister(MAX8614X::MAX8614X_SHA_CMD_REG, data, 1); //● Write 1 to SHA_START and 1 to SHA_EN bit. m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN | MAX8614X::MAX8614X_SHACFG_SHA_START); //● Wait for SHA_DONE. data[0] = 0; k = 0; while(!data[0] && k < 100) { m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1); k++; } // ● Read 256 MAC value from RAM using registers MEM_IDX and MEM_DATA. #ifdef DEBUG_ON printf("\r\n Raw Output\r\n\r\n"); #endif for (i = 64; i < 64+32; i++) { #ifdef DEBUG_ON if (!(i % 4)) printf("\r\n "); #endif m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i); m.readRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, data, 1); xData[i-64] = data[0]; #ifdef DEBUG_ON printf("%02x", data[0]); #endif } #ifdef DEBUG_ON printf("%\r\n"); #endif transformData(xData,macData, 32); #ifdef DEBUG_ON printf("\r\n Formatted Response\r\n\r\n"); for (i = 0; i < responseLen32*4; i++) { if (!(i % 4)) printf("\r\n "); printf("%02x", macData[i]); } printf("\r\n\r\n"); #endif // transform data to Little-Endian k = 0; for (i = 0; i < (responseLen32); i++) { x32Data[i] = 0; for (j = 3; j >= 0; j--) { x32Data[i] = x32Data[i] << 8; x32Data[i] |= macData[k] & 0xFF; k++; } } #ifdef DEBUG_ON printf("\r\n Formatted Response\r\n\r\n"); #endif for (i = 0; i < responseLen32; i++) { #ifdef DEBUG_ON printf(" %08X \r\n",x32Data[i]); #endif response[i] = x32Data[i]; } }