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https://github.com/RfidResearchGroup/proxmark3.git
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Auth test
This commit is contained in:
Bjoern Kerler
parent
865364ab08
commit
68faa88e6a
4 changed files with 387 additions and 457 deletions
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@ -185,178 +185,340 @@ void MifareDesfireGetInformation() {
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OnSuccess();
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}
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void MifareDES_Auth1(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain) {
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// mode = arg0
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// algo = arg1
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// keyno = arg2
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typedef enum {
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MFDES_AUTH_DES = 1,
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MFDES_AUTH_ISO = 2,
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MFDES_AUTH_AES = 3,
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MFDES_AUTH_PICC = 4
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} mifare_des_authmode_t;
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typedef enum {
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MFDES_ALGO_DES = 1,
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MFDES_ALGO_3DES = 2,
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MFDES_ALGO_3K3DES = 3,
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MFDES_ALGO_AES = 4
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} mifare_des_authalgo_t;
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void MifareDES_Auth1(uint8_t *datain) {
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int len = 0;
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//uint8_t PICC_MASTER_KEY8[8] = { 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47};
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uint8_t PICC_MASTER_KEY16[16] = { 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f };
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//uint8_t null_key_data16[16] = {0x00};
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//uint8_t new_key_data8[8] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
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//uint8_t new_key_data16[16] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF};
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uint8_t resp[256] = {0x00};
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size_t datalen = datain[0];
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uint8_t cmd[40] = {0x00};
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uint8_t encRndB[16] = {0x00};
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uint8_t decRndB[16] = {0x00};
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uint8_t both[32] = {0x00};
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//InitDesfireCard();
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LED_A_ON();
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LED_B_OFF();
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LED_C_OFF();
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struct p {
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uint8_t isOK;
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uint8_t mode;
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uint8_t algo;
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uint8_t keyno;
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uint8_t key[24];
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uint8_t keylen;
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uint8_t sessionkey[24];
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} PACKED;
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struct p *payload = (struct p *) datain;
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// 3 different way to authenticate AUTH (CRC16) , AUTH_ISO (CRC32) , AUTH_AES (CRC32)
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// 4 different crypto arg1 DES, 3DES, 3K3DES, AES
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// 3 different communication modes, PLAIN,MAC,CRYPTO
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// des, key 0,
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switch (arg0) {
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case 1: {
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uint8_t keybytes[16];
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uint8_t RndA[8] = {0x00};
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uint8_t RndB[8] = {0x00};
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mbedtls_aes_context ctx;
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if (arg1 == 2) {
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if (datain[1] == 0xff) {
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memcpy(keybytes, PICC_MASTER_KEY16, 16);
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} else {
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memcpy(keybytes, datain + 1, datalen);
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}
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} else {
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if (arg1 == 1) {
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if (datain[1] == 0xff) {
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uint8_t null_key_data8[8] = {0x00};
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memcpy(keybytes, null_key_data8, 8);
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} else {
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memcpy(keybytes, datain + 1, datalen);
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}
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}
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uint8_t keybytes[24];
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uint8_t resp[256] = {0x00};
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uint8_t cmd[40] = {0x00};
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// Crypt constants
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uint8_t IV[16] = {0x00};
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uint8_t RndA[16] = {0x00};
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uint8_t RndB[16] = {0x00};
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uint8_t encRndB[16] = {0x00};
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uint8_t rotRndB[16] = {0x00}; //RndB'
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uint8_t both[32] = {0x00}; // ek/dk_keyNo(RndA+RndB')
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// Generate Random Value
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uint32_t value = prng_successor(GetTickCount(), 32);
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num_to_bytes(value, 4, &RndA[0]);
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value = prng_successor(GetTickCount(), 32);
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num_to_bytes(value, 4, &RndA[4]);
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value = prng_successor(GetTickCount(), 32);
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num_to_bytes(value, 4, &RndA[8]);
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value = prng_successor(GetTickCount(), 32);
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num_to_bytes(value, 4, &RndA[12]);
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// Default Keys
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uint8_t PICC_MASTER_KEY8[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
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uint8_t PICC_MASTER_KEY16[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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//uint8_t null_key_data16[16] = {0x00};
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//uint8_t new_key_data8[8] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
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//uint8_t new_key_data16[16] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF};
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//InitDesfireCard();
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// Part 1
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LED_A_ON();
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LED_B_OFF();
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LED_C_OFF();
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if (payload->key==NULL)
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{
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if (payload->mode==MFDES_AUTH_DES || payload->mode==MFDES_AUTH_PICC)
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{
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memcpy(keybytes, PICC_MASTER_KEY8, 8);
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}
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else if (payload->mode==MFDES_AUTH_AES)
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{
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memcpy(keybytes, PICC_MASTER_KEY16, 16);
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}
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}
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else {
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memcpy(keybytes, payload->key, payload->keylen);
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}
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struct desfire_key defaultkey = {0};
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desfirekey_t key = &defaultkey;
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struct desfire_key defaultkey = {0};
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desfirekey_t key = &defaultkey;
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if (arg1 == 2)
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Desfire_3des_key_new_with_version(keybytes, key);
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else if (arg1 == 1)
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Desfire_des_key_new(keybytes, key);
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cmd[0] = 0x90;
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cmd[1] = AUTHENTICATE;
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cmd[2] = 0x0;
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cmd[3] = 0x0;
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cmd[4] = 0x1;
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cmd[5] = arg2; //keynumber
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cmd[6] = 0x0;
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len = DesfireAPDU(cmd, 7, resp);
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if (!len) {
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if (DBGLEVEL >= DBG_ERROR) {
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DbpString("Authentication failed. Card timeout.");
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if (payload->algo==MFDES_ALGO_AES) {
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mbedtls_aes_init(&ctx);
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if (mbedtls_aes_setkey_dec(&ctx, key->data, 128) != 0) {
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if (DBGLEVEL >= DBG_EXTENDED) {
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DbpString("mbedtls_aes_setkey_dec failed");
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}
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OnError(3);
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,7);
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return;
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}
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Desfire_aes_key_new(keybytes, key);
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}
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else if (payload->algo == MFDES_ALGO_3DES) {
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key->type=T_3DES;
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Desfire_3des_key_new_with_version(keybytes, key);
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}
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else if (payload->algo == MFDES_ALGO_DES) {
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key->type=T_DES;
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Desfire_des_key_new(keybytes, key);
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}
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else if (payload->algo == MFDES_ALGO_3K3DES) {
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Desfire_3k3des_key_new_with_version(keybytes, key);
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}
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if (resp[2] == (uint8_t)0xaf) {
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DbpString("Authentication failed. Invalid key number.");
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OnError(3);
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uint8_t subcommand=AUTHENTICATE;
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if (payload->mode==MFDES_AUTH_AES)
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subcommand=AUTHENTICATE_AES;
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else if (payload->mode==MFDES_AUTH_ISO)
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subcommand=AUTHENTICATE_ISO;
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if (payload->mode != MFDES_AUTH_PICC) {
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// Let's send our auth command
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cmd[0] = 0x90;
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cmd[1] = subcommand;
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cmd[2] = 0x0;
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cmd[3] = 0x0;
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cmd[4] = 0x1;
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cmd[5] = payload->keyno;
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cmd[6] = 0x0;
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len = DesfireAPDU(cmd, 7, resp);
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}
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else {
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cmd[0] = AUTHENTICATE;
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cmd[1] = payload->keyno;
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len = DesfireAPDU(cmd, 2, resp);
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}
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if (!len) {
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if (DBGLEVEL >= DBG_ERROR) {
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DbpString("Authentication failed. Card timeout.");
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}
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,3);
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return;
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}
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if (resp[2] == (uint8_t)0xaf) {
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DbpString("Authentication failed. Invalid key number.");
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,3);
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return;
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}
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// Part 2
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if (payload->mode != MFDES_AUTH_PICC) {
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memcpy(encRndB, resp + 1, payload->keylen);
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} else {
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memcpy(encRndB, resp + 2, payload->keylen);
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}
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// Part 3
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if (payload->algo==MFDES_ALGO_AES)
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mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_DECRYPT, 16, IV, encRndB, RndB);
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else if (payload->algo == MFDES_ALGO_3DES)
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tdes_dec(&RndB, &encRndB, key->data);
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else if (payload->algo == MFDES_ALGO_DES)
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des_dec(&RndB, &encRndB, key->data);
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// - Rotate RndB by 8 bits
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memcpy(rotRndB, RndB, payload->keylen);
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rol(rotRndB, payload->keylen);
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//memcpy(RndA, decRndA, payload->keylen);
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uint8_t encRndA[16] = {0x00};
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// - Encrypt our response
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if (payload->mode==MFDES_AUTH_DES || payload->mode==MFDES_AUTH_PICC) {
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if (payload->algo == MFDES_ALGO_3DES)
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tdes_dec(&encRndA, &RndA, key->data);
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else if (payload->algo == MFDES_ALGO_DES)
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des_dec(&encRndA, &RndA, key->data);
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memcpy(both, encRndA, 8);
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for (int x = 0; x < 8; x++) {
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rotRndB[x] = rotRndB[x] ^ encRndA[x];
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}
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if (payload->algo == MFDES_ALGO_3DES)
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tdes_dec(&encRndB, &rotRndB, key->data);
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else if (payload->algo == MFDES_ALGO_DES)
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des_dec(&encRndB, &rotRndB, key->data);
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memcpy(both + 8, encRndB, 8);
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}
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else if (payload->mode==MFDES_AUTH_AES || payload->mode==MFDES_AUTH_ISO) {
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uint8_t tmp[32] = {0x00};
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memcpy(tmp, RndA, 16);
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memcpy(tmp + 16, rotRndB, 16);
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if (payload->algo==MFDES_ALGO_AES) {
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if (mbedtls_aes_setkey_enc(&ctx, key->data, 128) != 0) {
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if (DBGLEVEL >= DBG_EXTENDED) {
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DbpString("mbedtls_aes_setkey_enc failed");
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}
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,7);
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return;
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}
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mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_ENCRYPT, 32, IV, tmp, both);
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}
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}
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memcpy(encRndB, resp + 1, 8);
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if (arg1 == 2)
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tdes_dec(&decRndB, &encRndB, key->data);
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else if (arg1 == 1)
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des_dec(&decRndB, &encRndB, key->data);
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if (payload->mode != MFDES_AUTH_PICC) {
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cmd[0] = 0x90;
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cmd[1] = ADDITIONAL_FRAME;
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cmd[2] = 0x00;
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cmd[3] = 0x00;
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cmd[4] = (payload->keylen * 2);
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memcpy(cmd + 5, both, payload->keylen * 2);
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cmd[(payload->keylen * 2) + 5] = 0x0;
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len = DesfireAPDU(cmd, 5 + (payload->keylen * 2) + 1, resp);
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} else {
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cmd[0] = ADDITIONAL_FRAME;
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memcpy(cmd + 1, both, 16);
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len = DesfireAPDU(cmd, 1 + 16, resp);
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}
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memcpy(RndB, decRndB, 8);
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rol(decRndB, 8);
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if (!len) {
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if (DBGLEVEL >= DBG_ERROR) {
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DbpString("Authentication failed. Card timeout.");
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}
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,3);
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return;
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}
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// This should be random
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uint8_t decRndA[8] = {0x00};
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uint32_t value = prng_successor(GetTickCount(), 32);
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num_to_bytes(value, 4, &decRndA[0]);
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value = prng_successor(GetTickCount(), 32);
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num_to_bytes(value, 4, &decRndA[4]);
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if (payload->mode != MFDES_AUTH_PICC) {
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if ((resp[len - 4] != 0x91) || (resp[len - 3] != 0x00)) {
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DbpString("Authentication failed.");
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,6);
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return;
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}
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}
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else {
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if (resp[1] != 0x00) {
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DbpString("Authentication failed.");
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,6);
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return;
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}
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}
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memcpy(RndA, decRndA, 8);
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uint8_t encRndA[8] = {0x00};
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// Part 4
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struct desfire_key sessionKey = {0};
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desfirekey_t skey = &sessionKey;
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Desfire_session_key_new(RndA, RndB, key, skey);
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memset(payload->sessionkey,0x0,24);
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memcpy(payload->sessionkey,skey->data,payload->keylen);
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print_result("SESSION : ", skey->data, payload->keylen);
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print_result("SESSION : ", payload->sessionkey, payload->keylen);
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if (arg1 == 2)
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tdes_dec(&encRndA, &decRndA, key->data);
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else if (arg1 == 1)
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des_dec(&encRndA, &decRndA, key->data);
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if (payload->mode != MFDES_AUTH_PICC) {
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memcpy(encRndA, resp + 1, payload->keylen);
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}
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else {
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memcpy(encRndA, resp + 2, payload->keylen);
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}
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memcpy(both, encRndA, 8);
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if (payload->mode==MFDES_AUTH_DES || payload->mode==MFDES_AUTH_PICC) {
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if (payload->algo == MFDES_ALGO_3DES)
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tdes_dec(&encRndA, &encRndA, key->data);
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else if (payload->algo == MFDES_ALGO_DES)
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des_dec(&encRndA, &encRndA, key->data);
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}
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else if (payload->mode==MFDES_AUTH_AES) {
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mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_DECRYPT, 16, IV, encRndA, encRndA);
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}
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for (int x = 0; x < 8; x++) {
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decRndB[x] = decRndB[x] ^ encRndA[x];
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rol(RndA, payload->keylen);
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print_result("RndA : ", RndA, payload->keylen);
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print_result("encRndA : ", encRndA, payload->keylen);
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for (int x = 0; x < payload->keylen; x++) {
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if (RndA[x] != encRndA[x]) {
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DbpString("Authentication failed. Cannot verify Session Key.");
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OnErrorNG(CMD_HF_DESFIRE_AUTH1,4);
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return;
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}
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}
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//Change the selected key to a new value.
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}
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/*
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// Current key is a 3DES key, change it to a DES key
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if (payload->algo == 2) {
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cmd[0] = 0x90;
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cmd[1] = CHANGE_KEY;
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cmd[2] = payload->keyno;
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if (arg1 == 2)
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tdes_dec(&encRndB, &decRndB, key->data);
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else if (arg1 == 1)
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des_dec(&encRndB, &decRndB, key->data);
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uint8_t newKey[16] = {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
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memcpy(both + 8, encRndB, 8);
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uint8_t first, second;
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uint8_t buff1[8] = {0x00};
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uint8_t buff2[8] = {0x00};
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uint8_t buff3[8] = {0x00};
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cmd[0] = 0x90;
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cmd[1] = ADDITIONAL_FRAME;
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cmd[2] = 0x00;
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cmd[3] = 0x00;
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cmd[4] = 0x10;
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memcpy(cmd + 5, both, 16);
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cmd[16 + 5] = 0x0;
|
||||
len = DesfireAPDU(cmd, 5 + 16 + 1, resp);
|
||||
if (!len) {
|
||||
if (DBGLEVEL >= DBG_ERROR) {
|
||||
DbpString("Authentication failed. Card timeout.");
|
||||
}
|
||||
OnError(3);
|
||||
return;
|
||||
}
|
||||
memcpy(buff1,newKey, 8);
|
||||
memcpy(buff2,newKey + 8, 8);
|
||||
|
||||
if (resp[len - 3] == 0x00) {
|
||||
compute_crc(CRC_14443_A, newKey, 16, &first, &second);
|
||||
memcpy(buff3, &first, 1);
|
||||
memcpy(buff3 + 1, &second, 1);
|
||||
|
||||
struct desfire_key sessionKey = {0};
|
||||
desfirekey_t skey = &sessionKey;
|
||||
Desfire_session_key_new(RndA, RndB, key, skey);
|
||||
//print_result("SESSION : ", skey->data, 8);
|
||||
tdes_dec(&buff1, &buff1, skey->data);
|
||||
memcpy(cmd+2,buff1,8);
|
||||
|
||||
memcpy(encRndA, resp + 1, 8);
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff2[x] = buff2[x] ^ buff1[x];
|
||||
}
|
||||
tdes_dec(&buff2, &buff2, skey->data);
|
||||
memcpy(cmd+10,buff2,8);
|
||||
|
||||
if (arg1 == 2)
|
||||
tdes_dec(&encRndA, &encRndA, key->data);
|
||||
else if (arg1 == 1)
|
||||
des_dec(&encRndA, &encRndA, key->data);
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff3[x] = buff3[x] ^ buff2[x];
|
||||
}
|
||||
tdes_dec(&buff3, &buff3, skey->data);
|
||||
memcpy(cmd+19,buff3,8);
|
||||
|
||||
rol(decRndA, 8);
|
||||
for (int x = 0; x < 8; x++) {
|
||||
if (decRndA[x] != encRndA[x]) {
|
||||
DbpString("Authentication failed. Cannot verify PICC.");
|
||||
OnError(4);
|
||||
return;
|
||||
}
|
||||
}
|
||||
// The command always times out on the first attempt, this will retry until a response
|
||||
// is recieved.
|
||||
len = 0;
|
||||
while(!len) {
|
||||
len = DesfireAPDU(cmd,27,resp);
|
||||
}
|
||||
|
||||
//Change the selected key to a new value.
|
||||
|
||||
/*
|
||||
// Current key is a 3DES key, change it to a DES key
|
||||
if (arg1 == 2) {
|
||||
} else {
|
||||
// Current key is a DES key, change it to a 3DES key
|
||||
if (payload->algo == 1) {
|
||||
cmd[0] = 0x90;
|
||||
cmd[1] = CHANGE_KEY;
|
||||
cmd[2] = arg2;
|
||||
cmd[2] = payload->keyno;
|
||||
|
||||
uint8_t newKey[16] = {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
|
||||
uint8_t newKey[16] = {0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f};
|
||||
|
||||
uint8_t first, second;
|
||||
uint8_t buff1[8] = {0x00};
|
||||
|
|
@ -370,319 +532,39 @@ void MifareDES_Auth1(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
|
|||
memcpy(buff3, &first, 1);
|
||||
memcpy(buff3 + 1, &second, 1);
|
||||
|
||||
tdes_dec(&buff1, &buff1, skey->data);
|
||||
memcpy(cmd+2,buff1,8);
|
||||
des_dec(&buff1, &buff1, skey->data);
|
||||
memcpy(cmd+3,buff1,8);
|
||||
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff2[x] = buff2[x] ^ buff1[x];
|
||||
}
|
||||
tdes_dec(&buff2, &buff2, skey->data);
|
||||
memcpy(cmd+10,buff2,8);
|
||||
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff3[x] = buff3[x] ^ buff2[x];
|
||||
}
|
||||
tdes_dec(&buff3, &buff3, skey->data);
|
||||
memcpy(cmd+19,buff3,8);
|
||||
|
||||
// The command always times out on the first attempt, this will retry until a response
|
||||
// is recieved.
|
||||
len = 0;
|
||||
while(!len) {
|
||||
len = DesfireAPDU(cmd,27,resp);
|
||||
}
|
||||
|
||||
} else {
|
||||
// Current key is a DES key, change it to a 3DES key
|
||||
if (arg1 == 1) {
|
||||
cmd[0] = 0x90;
|
||||
cmd[1] = CHANGE_KEY;
|
||||
cmd[2] = arg2;
|
||||
|
||||
uint8_t newKey[16] = {0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f};
|
||||
|
||||
uint8_t first, second;
|
||||
uint8_t buff1[8] = {0x00};
|
||||
uint8_t buff2[8] = {0x00};
|
||||
uint8_t buff3[8] = {0x00};
|
||||
|
||||
memcpy(buff1,newKey, 8);
|
||||
memcpy(buff2,newKey + 8, 8);
|
||||
|
||||
compute_crc(CRC_14443_A, newKey, 16, &first, &second);
|
||||
memcpy(buff3, &first, 1);
|
||||
memcpy(buff3 + 1, &second, 1);
|
||||
|
||||
des_dec(&buff1, &buff1, skey->data);
|
||||
memcpy(cmd+3,buff1,8);
|
||||
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff2[x] = buff2[x] ^ buff1[x];
|
||||
}
|
||||
des_dec(&buff2, &buff2, skey->data);
|
||||
memcpy(cmd+11,buff2,8);
|
||||
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff3[x] = buff3[x] ^ buff2[x];
|
||||
}
|
||||
des_dec(&buff3, &buff3, skey->data);
|
||||
memcpy(cmd+19,buff3,8);
|
||||
|
||||
// The command always times out on the first attempt, this will retry until a response
|
||||
// is recieved.
|
||||
len = 0;
|
||||
while(!len) {
|
||||
len = DesfireAPDU(cmd,27,resp);
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
//OnSuccess();
|
||||
if (arg1 == 2)
|
||||
reply_old(CMD_ACK, 1, 0, 0, skey->data, 16);
|
||||
else if (arg1 == 1)
|
||||
reply_old(CMD_ACK, 1, 0, 0, skey->data, 8);
|
||||
} else {
|
||||
DbpString("Authentication failed.");
|
||||
OnError(6);
|
||||
return;
|
||||
}
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff2[x] = buff2[x] ^ buff1[x];
|
||||
}
|
||||
break;
|
||||
case 2: {
|
||||
//SendDesfireCommand(AUTHENTICATE_ISO, &arg2, resp);
|
||||
uint8_t keybytes[16];
|
||||
uint8_t RndA[8] = {0x00};
|
||||
uint8_t RndB[8] = {0x00};
|
||||
des_dec(&buff2, &buff2, skey->data);
|
||||
memcpy(cmd+11,buff2,8);
|
||||
|
||||
if (arg1 == 2) {
|
||||
if (datain[1] == 0xff) {
|
||||
memcpy(keybytes, PICC_MASTER_KEY16, 16);
|
||||
} else {
|
||||
memcpy(keybytes, datain + 1, datalen);
|
||||
}
|
||||
} else {
|
||||
if (arg1 == 1) {
|
||||
if (datain[1] == 0xff) {
|
||||
uint8_t null_key_data8[8] = {0x00};
|
||||
memcpy(keybytes, null_key_data8, 8);
|
||||
} else {
|
||||
memcpy(keybytes, datain + 1, datalen);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct desfire_key defaultkey = {0};
|
||||
desfirekey_t key = &defaultkey;
|
||||
|
||||
if (arg1 == 2)
|
||||
Desfire_3des_key_new_with_version(keybytes, key);
|
||||
else if (arg1 == 1)
|
||||
Desfire_des_key_new(keybytes, key);
|
||||
|
||||
cmd[0] = AUTHENTICATE;
|
||||
cmd[1] = arg2; //keynumber
|
||||
len = DesfireAPDU(cmd, 2, resp);
|
||||
|
||||
if (!len) {
|
||||
if (DBGLEVEL >= DBG_ERROR) {
|
||||
DbpString("Authentication failed. Card timeout.");
|
||||
}
|
||||
OnError(3);
|
||||
return;
|
||||
}
|
||||
|
||||
if (resp[2] == (uint8_t)0xaf) {
|
||||
DbpString("Authentication failed. Invalid key number.");
|
||||
OnError(3);
|
||||
return;
|
||||
}
|
||||
|
||||
memcpy(encRndB, resp + 2, 8);
|
||||
if (arg1 == 2)
|
||||
tdes_dec(&decRndB, &encRndB, key->data);
|
||||
else if (arg1 == 1)
|
||||
des_dec(&decRndB, &encRndB, key->data);
|
||||
|
||||
memcpy(RndB, decRndB, 8);
|
||||
rol(decRndB, 8);
|
||||
|
||||
// This should be random
|
||||
uint8_t decRndA[8] = {0x00};
|
||||
uint32_t value = prng_successor(GetTickCount(), 32);
|
||||
num_to_bytes(value, 4, &decRndA[0]);
|
||||
value = prng_successor(GetTickCount(), 32);
|
||||
num_to_bytes(value, 4, &decRndA[4]);
|
||||
|
||||
memcpy(RndA, decRndA, 8);
|
||||
uint8_t encRndA[8] = {0x00};
|
||||
|
||||
if (arg1 == 2)
|
||||
tdes_dec(&encRndA, &decRndA, key->data);
|
||||
else if (arg1 == 1)
|
||||
des_dec(&encRndA, &decRndA, key->data);
|
||||
|
||||
memcpy(both, encRndA, 8);
|
||||
|
||||
for (int x = 0; x < 8; x++) {
|
||||
decRndB[x] = decRndB[x] ^ encRndA[x];
|
||||
|
||||
}
|
||||
|
||||
if (arg1 == 2)
|
||||
tdes_dec(&encRndB, &decRndB, key->data);
|
||||
else if (arg1 == 1)
|
||||
des_dec(&encRndB, &decRndB, key->data);
|
||||
|
||||
memcpy(both + 8, encRndB, 8);
|
||||
|
||||
cmd[0] = ADDITIONAL_FRAME;
|
||||
memcpy(cmd + 1, both, 16);
|
||||
len = DesfireAPDU(cmd, 1 + 16, resp);
|
||||
if (!len) {
|
||||
if (DBGLEVEL >= DBG_ERROR) {
|
||||
DbpString("Authentication failed. Card timeout.");
|
||||
}
|
||||
OnError(3);
|
||||
return;
|
||||
}
|
||||
|
||||
if (resp[1] == 0x00) {
|
||||
struct desfire_key sessionKey = {0};
|
||||
desfirekey_t skey = &sessionKey;
|
||||
Desfire_session_key_new(RndA, RndB, key, skey);
|
||||
//print_result("SESSION : ", skey->data, 8);
|
||||
|
||||
memcpy(encRndA, resp + 2, 8);
|
||||
|
||||
if (arg1 == 2)
|
||||
tdes_dec(&encRndA, &encRndA, key->data);
|
||||
else if (arg1 == 1)
|
||||
des_dec(&encRndA, &encRndA, key->data);
|
||||
|
||||
rol(decRndA, 8);
|
||||
for (int x = 0; x < 8; x++) {
|
||||
if (decRndA[x] != encRndA[x]) {
|
||||
DbpString("Authentication failed. Cannot verify PICC.");
|
||||
OnError(4);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
//OnSuccess();
|
||||
if (arg1 == 2)
|
||||
reply_old(CMD_ACK, 1, 0, 0, skey->data, 16);
|
||||
else if (arg1 == 1)
|
||||
reply_old(CMD_ACK, 1, 0, 0, skey->data, 8);
|
||||
} else {
|
||||
DbpString("Authentication failed.");
|
||||
OnError(6);
|
||||
return;
|
||||
}
|
||||
for (int x = 0; x < 8; x++) {
|
||||
buff3[x] = buff3[x] ^ buff2[x];
|
||||
}
|
||||
break;
|
||||
case 3: {
|
||||
//defaultkey
|
||||
uint8_t keybytes[16] = {0x00};
|
||||
if (datain[1] == 0xff) {
|
||||
memcpy(keybytes, PICC_MASTER_KEY16, 16);
|
||||
} else {
|
||||
memcpy(keybytes, datain + 1, datalen);
|
||||
}
|
||||
des_dec(&buff3, &buff3, skey->data);
|
||||
memcpy(cmd+19,buff3,8);
|
||||
|
||||
struct desfire_key defaultkey = {0x00};
|
||||
desfirekey_t key = &defaultkey;
|
||||
Desfire_aes_key_new(keybytes, key);
|
||||
|
||||
mbedtls_aes_context ctx;
|
||||
uint8_t IV[16] = {0x00};
|
||||
mbedtls_aes_init(&ctx);
|
||||
|
||||
cmd[0] = 0x90;
|
||||
cmd[1] = AUTHENTICATE_AES;
|
||||
cmd[2] = 0x0;
|
||||
cmd[3] = 0x0;
|
||||
cmd[4] = 0x1;
|
||||
cmd[5] = arg2; //keynumber
|
||||
cmd[6] = 0x0;
|
||||
len = DesfireAPDU(cmd, 7, resp);
|
||||
if (!len) {
|
||||
if (DBGLEVEL >= DBG_ERROR) {
|
||||
DbpString("Authentication failed. Card timeout.");
|
||||
}
|
||||
OnError(3);
|
||||
return;
|
||||
}
|
||||
|
||||
memcpy(encRndB, resp + 1, 16);
|
||||
|
||||
// dekryptera tagnonce.
|
||||
if (mbedtls_aes_setkey_dec(&ctx, key->data, 128) != 0) {
|
||||
if (DBGLEVEL >= DBG_EXTENDED) {
|
||||
DbpString("mbedtls_aes_setkey_dec failed");
|
||||
}
|
||||
OnError(7);
|
||||
return;
|
||||
}
|
||||
mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_DECRYPT, 16, IV, encRndB, decRndB);
|
||||
rol(decRndB, 16);
|
||||
uint8_t nonce[16] = {0x00};
|
||||
uint32_t val = prng_successor(GetTickCount(), 32);
|
||||
num_to_bytes(val, 4, &nonce[0]);
|
||||
val = prng_successor(GetTickCount(), 32);
|
||||
num_to_bytes(val, 4, &nonce[4]);
|
||||
val = prng_successor(GetTickCount(), 32);
|
||||
num_to_bytes(val, 4, &nonce[8]);
|
||||
val = prng_successor(GetTickCount(), 32);
|
||||
num_to_bytes(val, 4, &nonce[12]);
|
||||
memcpy(both, nonce, 16);
|
||||
memcpy(both + 16, decRndB, 16);
|
||||
uint8_t encBoth[32] = {0x00};
|
||||
if (mbedtls_aes_setkey_enc(&ctx, key->data, 128) != 0) {
|
||||
if (DBGLEVEL >= DBG_EXTENDED) {
|
||||
DbpString("mbedtls_aes_setkey_enc failed");
|
||||
}
|
||||
OnError(7);
|
||||
return;
|
||||
}
|
||||
mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_ENCRYPT, 32, IV, both, encBoth);
|
||||
|
||||
cmd[0] = 0x90;
|
||||
cmd[1] = ADDITIONAL_FRAME;
|
||||
cmd[2] = 0x00;
|
||||
cmd[3] = 0x00;
|
||||
cmd[4] = 0x20;
|
||||
memcpy(cmd + 5, encBoth, 32);
|
||||
cmd[32 + 5] = 0x0;
|
||||
|
||||
len = DesfireAPDU(cmd, 5 + 32 + 1, resp);
|
||||
if (!len) {
|
||||
if (DBGLEVEL >= DBG_ERROR) {
|
||||
DbpString("Authentication failed. Card timeout.");
|
||||
}
|
||||
OnError(3);
|
||||
return;
|
||||
}
|
||||
|
||||
if ((resp[1 + 16] == 0x91) && (resp[1 + 16 + 1] == 0x00)) {
|
||||
// Create AES Session key
|
||||
struct desfire_key sessionKey = {0};
|
||||
desfirekey_t skey = &sessionKey;
|
||||
Desfire_session_key_new(nonce, decRndB, key, skey);
|
||||
print_result("SESSION : ", skey->data, 16);
|
||||
} else {
|
||||
DbpString("Authentication failed.");
|
||||
OnError(7);
|
||||
return;
|
||||
}
|
||||
|
||||
break;
|
||||
// The command always times out on the first attempt, this will retry until a response
|
||||
// is recieved.
|
||||
len = 0;
|
||||
while(!len) {
|
||||
len = DesfireAPDU(cmd,27,resp);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
|
||||
//OnSuccess();
|
||||
reply_mix(CMD_ACK, 1, len, 0, resp, len);
|
||||
//reply_old(CMD_ACK, 1, 0, 0, skey->data, payload->keylen);
|
||||
//reply_mix(CMD_ACK, 1, len, 0, resp, len);
|
||||
|
||||
LED_B_ON();
|
||||
reply_ng(CMD_HF_DESFIRE_AUTH1, PM3_SUCCESS, (uint8_t *)payload, sizeof(payload));
|
||||
LED_B_OFF();
|
||||
}
|
||||
|
||||
// 3 different ISO ways to send data to a DESFIRE (direct, capsuled, capsuled ISO)
|
||||
|
|
@ -767,3 +649,8 @@ void OnError(uint8_t reason) {
|
|||
reply_mix(CMD_ACK, 0, reason, 0, 0, 0);
|
||||
OnSuccess();
|
||||
}
|
||||
|
||||
void OnErrorNG(uint16_t cmd, uint8_t reason) {
|
||||
reply_ng(cmd, reason, NULL, 0);
|
||||
OnSuccess();
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue