intiial commit
Dependencies: MAX8614X USBDevice max32630hsp_test
main.cpp
- Committer:
- phonemacro
- Date:
- 2018-08-14
- Revision:
- 7:5b7f7ec9efe0
- Parent:
- 6:0ec9dd0e8eb0
- Child:
- 8:166e2b836050
File content as of revision 7:5b7f7ec9efe0:
/********************************************************************** * 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" void executeSha256(uint8_t *challenge, unsigned int challengeLen); void executeSha(uint32_t *challenge, unsigned int challengeLen); MAX32630HSP icarus(MAX32630HSP::VIO_1V8); // MAX32630FTHR mbed_board(MAX32630FTHR::VIO_1V8); SPI spi(P5_1, P5_2, P5_0); /* mosi, miso, sclk */ //DigitalOut cs(P3_0); DigitalOut cs(P5_3); //PinName interrupt_pin = P3_3; //PinnName interrupt_pin = P5_7; //PinName interrupt_pin = P5_5; //PinName interrupt_pin = P3_6; //PinName interrupt_pin = P3_7; //PinName interrupt_pin = P3_2; PinName interrupt_pin = P5_4; // Virtual serial port over USB USBSerial microUSB; DigitalOut rLED(LED1); DigitalOut gLED(LED2); DigitalOut bLED(LED3); int main() { #define CHALLENGE_SZ_NO_SECRET 20 uint32_t challenge_1[5] = { // 160 bit = 5*32 bits 0x5e813524, 0x5663d609, 0x998d7b0d, 0x52128465, 0xcd0de301 }; #define MAC_SZ 32 // daplink.printf("daplink serial port\r\n"); // microUSB.printf("micro USB serial port\r\n"); rLED = LED_ON; gLED = LED_ON; bLED = LED_OFF; rLED = LED_OFF; printf("\r\n\rmax86140 authenication software\r\n"); // MAX8614X m(spi,cs,interrupt_pin); // m.readRegister(MAX8614X::MAX8614X_PART_ID_REG, data, 1); // printf("device id should be 0x24, reg %02X = %02X\r\n", MAX8614X::MAX8614X_PART_ID_REG, data[0]); // executeSha256(challenge_1, CHALLENGE_SZ_NO_SECRET); executeSha(challenge_1, 5); //● Compare MAC from MAX86140 wth Host's precalculated MAC. //● Check PASS or FAIL. //● Disable SHA_EN bit ( Write 0 to SHA_EN bit). while(1) { gLED = !gLED; wait(1.0); } } 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 executeSha(uint32_t *challenge, unsigned int challengeLen) { int i, j, k, ctr;; uint8_t macData[256]; uint8_t xData[256]; uint32_t tmpData; uint8_t data[5]; uint8_t romID; MAX8614X m(spi,cs,interrupt_pin); //● 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); 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"); k = 0; for (i = 0; i < (challengeLen); i++) { tmpData = challenge[i]; for (j = 3; j >= 0; j--) { xData[k] = tmpData & 0xFF; tmpData = tmpData >> 8; k++; } } 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 "); printf("\r\n "); for (i = 0; i < (challengeLen*4); i++) { m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i); m.writeRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, xData[i]); } printf("%\r\n"); // 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 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID); // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID); m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1); // clear the status register //● 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); //● Pole the SHA_DONE interrupt. data[0] = 0; ctr = 0; while(!data[0] && ctr++ < 1000 ) { m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1); } // ● Read 256 MAC value from RAM using registers MEM_IDX and MEM_DATA. printf("\r\n Response Data "); if (romID == MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID) printf("with ROM ID\r\n"); else if (romID == MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID) printf("with no ROM ID\r\n"); else printf(" The SHA CMD register is incorrect!\r\n"); for (i = 64; i < 64+32; i++) { if (!(i % 4)) printf("\r\n "); m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i); m.readRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, data, 1); macData[i] = data[0]; printf("%02x", data[0]); } printf("%\r\n"); }