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Do not respond a challenge-response command if no challenge-response app is configured.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
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Pol Henarejos 2023-04-01 23:37:51 +02:00
parent 1d7bdb0861
commit f90baaf095
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1 changed files with 3 additions and 0 deletions
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src/fido/otp.c
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@ -413,6 +413,9 @@ int cmd_otp() {
file_t *ef = search_dynamic_file(p1 == 0x30 || p1 == 0x20 ? EF_OTP_SLOT1 : EF_OTP_SLOT2);
if (file_has_data(ef)) {
otp_config_t *otp_config = (otp_config_t *)file_get_data(ef);
if (!(otp_config->cfg_flags & CHAL_YUBICO && otp_config->tkt_flags & CHAL_RESP)) {
return SW_WRONG_DATA();
}
int ret = 0;
if (p1 == 0x30 || p1 == 0x38) {
mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA1), otp_config->aes_key, KEY_SIZE, apdu.data, 8, res_APDU);