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emrtd: Verify composite check digits

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Ave 2020-12-17 04:28:26 +03:00
parent b362101b54
commit 8e6736edd1
1 changed files with 15 additions and 2 deletions
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17
client/src/cmdhfemrtd.c
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@ -1182,7 +1182,15 @@ int infoHF_EMRTD(char *documentnumber, char *dob, char *expiry, bool BAC_availab
emrtd_print_expiry(mrz, 44 + 21);
emrtd_print_optional_elements(mrz, 44 + 28, 14, true);
// TODO: verify composite check digit here
// Calculate and verify composite check digit
char composite_check_data[50] = { 0x00 };
memcpy(composite_check_data, mrz, 9);
memcpy(composite_check_data + 9, mrz + 13, 7);
memcpy(composite_check_data + 7, mrz + 21, 22);
if (!emrtd_compare_check_digit(composite_check_data, 36, mrz[87])) {
PrintAndLogEx(SUCCESS, _RED_("Composite check digit is invalid."));
}
} else if (td_variant == 1) {
// ID form factor
emrtd_print_document_number(mrz, 5);
@ -1192,7 +1200,12 @@ int infoHF_EMRTD(char *documentnumber, char *dob, char *expiry, bool BAC_availab
emrtd_print_expiry(mrz, 30 + 8);
PrintAndLogEx(SUCCESS, "Nationality...........: " _YELLOW_("%.3s"), mrz + 30 + 15);
emrtd_print_optional_elements(mrz, 30 + 18, 11, false);
// TODO: verify composite check digit here
// Calculate and verify composite check digit
if (!emrtd_compare_check_digit(mrz, 59, mrz[59])) {
PrintAndLogEx(SUCCESS, _RED_("Composite check digit is invalid."));
}
emrtd_print_name(mrz, 60, 30);
}