client: fix mix of spaces & tabs
This commit is contained in:
Philippe Teuwen
@@ -24,152 +24,152 @@
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#include "emv_roca.h"
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static uint8_t g_primes[ROCA_PRINTS_LENGTH] = {
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11, 13, 17, 19, 37, 53, 61, 71, 73, 79, 97, 103, 107, 109, 127, 151, 157
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11, 13, 17, 19, 37, 53, 61, 71, 73, 79, 97, 103, 107, 109, 127, 151, 157
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};
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mbedtls_mpi g_prints[ROCA_PRINTS_LENGTH];
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void rocacheck_init(void) {
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for (int i = 0; i < ROCA_PRINTS_LENGTH; i++)
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mbedtls_mpi_init(&g_prints[i]);
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for (int i = 0; i < ROCA_PRINTS_LENGTH; i++)
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mbedtls_mpi_init(&g_prints[i]);
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mbedtls_mpi_read_string(&g_prints[0], 10, "1026");
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mbedtls_mpi_read_string(&g_prints[1], 10, "5658");
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mbedtls_mpi_read_string(&g_prints[2], 10, "107286");
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mbedtls_mpi_read_string(&g_prints[3], 10, "199410");
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mbedtls_mpi_read_string(&g_prints[4], 10, "67109890");
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mbedtls_mpi_read_string(&g_prints[5], 10, "5310023542746834");
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mbedtls_mpi_read_string(&g_prints[6], 10, "1455791217086302986");
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mbedtls_mpi_read_string(&g_prints[7], 10, "20052041432995567486");
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mbedtls_mpi_read_string(&g_prints[8], 10, "6041388139249378920330");
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mbedtls_mpi_read_string(&g_prints[9], 10, "207530445072488465666");
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mbedtls_mpi_read_string(&g_prints[10], 10, "79228162521181866724264247298");
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mbedtls_mpi_read_string(&g_prints[11], 10, "1760368345969468176824550810518");
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mbedtls_mpi_read_string(&g_prints[12], 10, "50079290986288516948354744811034");
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mbedtls_mpi_read_string(&g_prints[13], 10, "473022961816146413042658758988474");
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mbedtls_mpi_read_string(&g_prints[14], 10, "144390480366845522447407333004847678774");
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mbedtls_mpi_read_string(&g_prints[15], 10, "1800793591454480341970779146165214289059119882");
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mbedtls_mpi_read_string(&g_prints[16], 10, "126304807362733370595828809000324029340048915994");
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mbedtls_mpi_read_string(&g_prints[0], 10, "1026");
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mbedtls_mpi_read_string(&g_prints[1], 10, "5658");
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mbedtls_mpi_read_string(&g_prints[2], 10, "107286");
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mbedtls_mpi_read_string(&g_prints[3], 10, "199410");
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mbedtls_mpi_read_string(&g_prints[4], 10, "67109890");
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mbedtls_mpi_read_string(&g_prints[5], 10, "5310023542746834");
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mbedtls_mpi_read_string(&g_prints[6], 10, "1455791217086302986");
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mbedtls_mpi_read_string(&g_prints[7], 10, "20052041432995567486");
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mbedtls_mpi_read_string(&g_prints[8], 10, "6041388139249378920330");
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mbedtls_mpi_read_string(&g_prints[9], 10, "207530445072488465666");
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mbedtls_mpi_read_string(&g_prints[10], 10, "79228162521181866724264247298");
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mbedtls_mpi_read_string(&g_prints[11], 10, "1760368345969468176824550810518");
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mbedtls_mpi_read_string(&g_prints[12], 10, "50079290986288516948354744811034");
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mbedtls_mpi_read_string(&g_prints[13], 10, "473022961816146413042658758988474");
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mbedtls_mpi_read_string(&g_prints[14], 10, "144390480366845522447407333004847678774");
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mbedtls_mpi_read_string(&g_prints[15], 10, "1800793591454480341970779146165214289059119882");
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mbedtls_mpi_read_string(&g_prints[16], 10, "126304807362733370595828809000324029340048915994");
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}
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void rocacheck_cleanup(void) {
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for (int i = 0; i < ROCA_PRINTS_LENGTH; i++)
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mbedtls_mpi_free(&g_prints[i]);
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for (int i = 0; i < ROCA_PRINTS_LENGTH; i++)
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mbedtls_mpi_free(&g_prints[i]);
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}
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int bitand_is_zero( mbedtls_mpi* a, mbedtls_mpi* b ) {
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int bitand_is_zero( mbedtls_mpi* a, mbedtls_mpi* b ) {
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for (int i = 0; i < mbedtls_mpi_bitlen(a); i++) {
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for (int i = 0; i < mbedtls_mpi_bitlen(a); i++) {
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if (mbedtls_mpi_get_bit(a, i) && mbedtls_mpi_get_bit(b, i))
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return 0;
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}
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return 1;
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if (mbedtls_mpi_get_bit(a, i) && mbedtls_mpi_get_bit(b, i))
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return 0;
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}
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return 1;
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}
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mbedtls_mpi_uint mpi_get_uint(const mbedtls_mpi *X) {
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if (X->n == 1 && X->s > 0) {
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return X->p[0];
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}
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printf("ZERRRRO!!!\n");
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return 0;
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if (X->n == 1 && X->s > 0) {
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return X->p[0];
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}
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printf("ZERRRRO!!!\n");
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return 0;
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}
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void print_mpi(const char *msg, int radix, const mbedtls_mpi *X) {
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char Xchar[400] = {0};
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size_t len = 0;
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char Xchar[400] = {0};
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size_t len = 0;
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mbedtls_mpi_write_string(X, radix, Xchar, sizeof(Xchar), &len);
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printf("%s[%d] %s\n", msg, len, Xchar);
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mbedtls_mpi_write_string(X, radix, Xchar, sizeof(Xchar), &len);
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printf("%s[%d] %s\n", msg, len, Xchar);
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}
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bool emv_rocacheck(const unsigned char *buf, size_t buflen, bool verbose) {
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mbedtls_mpi t_modulus;
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mbedtls_mpi_init(&t_modulus);
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mbedtls_mpi t_modulus;
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mbedtls_mpi_init(&t_modulus);
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bool ret = false;
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bool ret = false;
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rocacheck_init();
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rocacheck_init();
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MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary(&t_modulus, buf, buflen) );
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MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary(&t_modulus, buf, buflen) );
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for (int i = 0; i < ROCA_PRINTS_LENGTH; i++) {
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for (int i = 0; i < ROCA_PRINTS_LENGTH; i++) {
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mbedtls_mpi t_temp;
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mbedtls_mpi t_prime;
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mbedtls_mpi g_one;
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mbedtls_mpi t_temp;
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mbedtls_mpi t_prime;
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mbedtls_mpi g_one;
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mbedtls_mpi_init(&t_temp);
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mbedtls_mpi_init(&t_prime);
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mbedtls_mpi_init(&g_one);
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mbedtls_mpi_init(&t_temp);
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mbedtls_mpi_init(&t_prime);
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mbedtls_mpi_init(&g_one);
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MBEDTLS_MPI_CHK( mbedtls_mpi_read_string(&g_one, 10, "1") );
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MBEDTLS_MPI_CHK( mbedtls_mpi_read_string(&g_one, 10, "1") );
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MBEDTLS_MPI_CHK( mbedtls_mpi_add_int(&t_prime, &t_prime, g_primes[i]) );
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MBEDTLS_MPI_CHK( mbedtls_mpi_add_int(&t_prime, &t_prime, g_primes[i]) );
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MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi(&t_temp, &t_modulus, &t_prime) );
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MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi(&t_temp, &t_modulus, &t_prime) );
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MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l(&g_one, mpi_get_uint(&t_temp)) );
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MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l(&g_one, mpi_get_uint(&t_temp)) );
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if (bitand_is_zero(&g_one, &g_prints[i])) {
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if (verbose)
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PrintAndLogEx(FAILED, "No fingerprint found.\n");
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goto cleanup;
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}
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if (bitand_is_zero(&g_one, &g_prints[i])) {
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if (verbose)
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PrintAndLogEx(FAILED, "No fingerprint found.\n");
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goto cleanup;
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}
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mbedtls_mpi_free(&g_one);
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mbedtls_mpi_free(&t_temp);
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mbedtls_mpi_free(&t_prime);
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}
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mbedtls_mpi_free(&g_one);
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mbedtls_mpi_free(&t_temp);
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mbedtls_mpi_free(&t_prime);
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}
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ret = true;
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if (verbose)
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PrintAndLogEx(SUCCESS, "Fingerprint found!\n");
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ret = true;
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if (verbose)
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PrintAndLogEx(SUCCESS, "Fingerprint found!\n");
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cleanup:
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mbedtls_mpi_free(&t_modulus);
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mbedtls_mpi_free(&t_modulus);
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rocacheck_cleanup();
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return ret;
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rocacheck_cleanup();
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return ret;
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}
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int roca_self_test(void) {
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int ret = 0;
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int ret = 0;
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PrintAndLogEx(INFO, "ROCA check vulnerability tests" );
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PrintAndLogEx(INFO, "ROCA check vulnerability tests" );
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// positive
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uint8_t keyp[] = "\x94\x4e\x13\x20\x8a\x28\x0c\x37\xef\xc3\x1c\x31\x14\x48\x5e\x59"\
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"\x01\x92\xad\xbb\x8e\x11\xc8\x7c\xad\x60\xcd\xef\x00\x37\xce\x99"\
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"\x27\x83\x30\xd3\xf4\x71\xa2\x53\x8f\xa6\x67\x80\x2e\xd2\xa3\xc4"\
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"\x4a\x8b\x7d\xea\x82\x6e\x88\x8d\x0a\xa3\x41\xfd\x66\x4f\x7f\xa7";
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// positive
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uint8_t keyp[] = "\x94\x4e\x13\x20\x8a\x28\x0c\x37\xef\xc3\x1c\x31\x14\x48\x5e\x59"\
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"\x01\x92\xad\xbb\x8e\x11\xc8\x7c\xad\x60\xcd\xef\x00\x37\xce\x99"\
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"\x27\x83\x30\xd3\xf4\x71\xa2\x53\x8f\xa6\x67\x80\x2e\xd2\xa3\xc4"\
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"\x4a\x8b\x7d\xea\x82\x6e\x88\x8d\x0a\xa3\x41\xfd\x66\x4f\x7f\xa7";
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if (emv_rocacheck(keyp, 64, false)) {
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PrintAndLogEx(SUCCESS, "Weak modulus [ %s]", _GREEN_(PASS) );
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}
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else {
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ret++;
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PrintAndLogEx(FAILED, "Weak modulus [ %s]", _RED_(FAIL) );
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}
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if (emv_rocacheck(keyp, 64, false)) {
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PrintAndLogEx(SUCCESS, "Weak modulus [ %s]", _GREEN_(PASS) );
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}
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else {
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ret++;
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PrintAndLogEx(FAILED, "Weak modulus [ %s]", _RED_(FAIL) );
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}
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// negative
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uint8_t keyn[] = "\x84\x4e\x13\x20\x8a\x28\x0c\x37\xef\xc3\x1c\x31\x14\x48\x5e\x59"\
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"\x01\x92\xad\xbb\x8e\x11\xc8\x7c\xad\x60\xcd\xef\x00\x37\xce\x99"\
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"\x27\x83\x30\xd3\xf4\x71\xa2\x53\x8f\xa6\x67\x80\x2e\xd2\xa3\xc4"\
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"\x4a\x8b\x7d\xea\x82\x6e\x88\x8d\x0a\xa3\x41\xfd\x66\x4f\x7f\xa7";
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// negative
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uint8_t keyn[] = "\x84\x4e\x13\x20\x8a\x28\x0c\x37\xef\xc3\x1c\x31\x14\x48\x5e\x59"\
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"\x01\x92\xad\xbb\x8e\x11\xc8\x7c\xad\x60\xcd\xef\x00\x37\xce\x99"\
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"\x27\x83\x30\xd3\xf4\x71\xa2\x53\x8f\xa6\x67\x80\x2e\xd2\xa3\xc4"\
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"\x4a\x8b\x7d\xea\x82\x6e\x88\x8d\x0a\xa3\x41\xfd\x66\x4f\x7f\xa7";
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if (emv_rocacheck(keyn, 64, false)) {
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ret++;
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PrintAndLogEx(FAILED, "Strong modulus [ %s]", _RED_(FAIL) );
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} else {
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PrintAndLogEx(SUCCESS, "Strong modulus [ %s]", _GREEN_(PASS) );
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}
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if (emv_rocacheck(keyn, 64, false)) {
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ret++;
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PrintAndLogEx(FAILED, "Strong modulus [ %s]", _RED_(FAIL) );
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} else {
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PrintAndLogEx(SUCCESS, "Strong modulus [ %s]", _GREEN_(PASS) );
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}
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return ret;
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return ret;
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}
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