intiial commit
Dependencies: MAX8614X USBDevice max32630hsp_test
Diff: main.cpp
- Revision:
- 7:5b7f7ec9efe0
- Parent:
- 6:0ec9dd0e8eb0
- Child:
- 8:166e2b836050
--- a/main.cpp Sun Aug 12 00:02:14 2018 +0000 +++ b/main.cpp Tue Aug 14 05:22:46 2018 +0000 @@ -36,6 +36,9 @@ #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); @@ -57,19 +60,18 @@ DigitalOut bLED(LED3); int main() { - #define CHALLENGE_SZ 20 - static const uint8_t challenge_1[CHALLENGE_SZ] = { // 160 bit - 0x5e, 0x81, 0x35, 0x24, - 0x56, 0x63, 0xd6, 0x09, - 0x99, 0x8d, 0x7b, 0x0d, - 0x52, 0x12, 0x84, 0x65, - 0xcd, 0x0d, 0xe3, 0x01 + #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 - uint8_t macData[MAC_SZ]; - uint8_t data[5]; - int i; + // daplink.printf("daplink serial port\r\n"); // microUSB.printf("micro USB serial port\r\n"); @@ -79,72 +81,12 @@ 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]); - - //● Enable SHA_DONE Interrupt - m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE2_REG, MAX8614X::MAX8614X_IE_SHA_DONE_EN); - - m.readRegister(MAX8614X::MAX8614X_INT_ENABLE2_REG, data, 1); - printf("enable sha done interrupt, reg %02X = %02X\r\n", MAX8614X::MAX8614X_INT_ENABLE2_REG, data[0]); - - - //● Enable SHA_EN bit. - m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN); - - m.readRegister(MAX8614X::MAX8614X_SHA_CFG_REG, data, 1); - printf("enable sha CFG, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CFG_REG, data[0]); - - //● 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); - m.readRegister(MAX8614X::MAX8614X_MEMORY_CONTROL_REG, data, 1); - printf("MEM CNTRL REG should be 2, reg %02X = = %02X\r\n", MAX8614X::MAX8614X_MEMORY_CONTROL_REG, data[0]); - - for (i = 0; i < CHALLENGE_SZ; i++) { - m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i); - m.writeRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, challenge_1[i]); - } +// 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]); - for (i = 0; i < CHALLENGE_SZ; i++) { - m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i); - m.readRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, data, 1); - printf("%02x ", data[0]); - } - 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.readRegister(MAX8614X::MAX8614X_SHA_CMD_REG, data, 1); - printf("sha cmd reg should be 0x35 mac rom id, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CMD_REG, data[0]); - m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1); - printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]); - //● 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); - m.readRegister(MAX8614X::MAX8614X_SHA_CFG_REG, data, 1); - printf("sha CFG reg should be 0x3, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CFG_REG, data[0]); - - //● Wait for SHA_DONE interrupt. - m.clearShaComplete(); - data[0] = 0; -// while(!m.isShaComplete()) { - while(!m.isShaComplete() && !data[0] ) { - m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1); - printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]); - - } - // ● Read 256 MAC value from RAM using registers MEM_IDX and MEM_DATA. - for (i = 0; i < MAC_SZ; i++) { - 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"); +// 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). @@ -154,3 +96,106 @@ } } +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"); +} \ No newline at end of file