bool authenticate(uint32_t uiBlock)
{
mifare_cmd mc;
uint32_t uiTrailerBlock;
//! Set the authentication information (uid)
memcpy(mp.mpa.abtAuthUid, nt.nti.nai.abtUid + nt.nti.nai.szUidLen - 4, 4);
//! Should we use key A or B?
mc = (bUseKeyA) ? MC_AUTH_A : MC_AUTH_B;
//! Key file authentication.
if (bUseKeyFile)
{
//! Locate the trailer (with the keys) used for this sector
uiTrailerBlock = get_trailer_block(uiBlock);
//! Extract the right key from dump file
if (bUseKeyA)
{
memcpy(mp.mpa.abtKey, mtKeys.amb[uiTrailerBlock].mbt.abtKeyA, 6);
}
else
{
memcpy(mp.mpa.abtKey, mtKeys.amb[uiTrailerBlock].mbt.abtKeyB, 6);
}
//! Try to authenticate for the current sector
if (nfc_initiator_mifare_cmd(pnd, mc, uiBlock, &mp))
{
return true;
}
}
else
{
//! Try to guess the right key
size_t key_index;
for (key_index = 0; key_index < num_keys; key_index++)
{
memcpy(mp.mpa.abtKey, keys + (key_index * 6), 6);
if (nfc_initiator_mifare_cmd(pnd, mc, uiBlock, &mp))
{
if (bUseKeyA)
{
memcpy(mtKeys.amb[uiBlock].mbt.abtKeyA, &mp.mpa.abtKey, 6);
}
else
{
memcpy(mtKeys.amb[uiBlock].mbt.abtKeyB, &mp.mpa.abtKey, 6);
}
return true;
}
nfc_initiator_select_passive_target(pnd, nmMifare, nt.nti.nai.abtUid, nt.nti.nai.szUidLen, NULL);
}
}
return false;
}
static bool
authenticate(uint32_t uiBlock)
{
mifare_cmd mc;
uint32_t uiTrailerBlock;
// Set the authentication information (uid)
memcpy(mp.mpa.abtAuthUid, nt.nti.nai.abtUid + nt.nti.nai.szUidLen - 4, 4);
// Should we use key A or B?
mc = (bUseKeyA) ? MC_AUTH_A : MC_AUTH_B;
// Key file authentication.
if (bUseKeyFile) {
// Locate the trailer (with the keys) used for this sector
uiTrailerBlock = get_trailer_block(uiBlock);
// Extract the right key from dump file
if (bUseKeyA)
memcpy(mp.mpa.abtKey, mtKeys.amb[uiTrailerBlock].mbt.abtKeyA, 6);
else
memcpy(mp.mpa.abtKey, mtKeys.amb[uiTrailerBlock].mbt.abtKeyB, 6);
// Try to authenticate for the current sector
if (nfc_initiator_mifare_cmd(pnd, mc, uiBlock, &mp))
return true;
}
// If formatting or not using key file, try to guess the right key
if (bFormatCard || !bUseKeyFile) {
for (size_t key_index = 0; key_index < num_keys; key_index++) {
memcpy(mp.mpa.abtKey, keys + (key_index * 6), 6);
if (nfc_initiator_mifare_cmd(pnd, mc, uiBlock, &mp)) {
if (bUseKeyA)
memcpy(mtKeys.amb[uiBlock].mbt.abtKeyA, &mp.mpa.abtKey, 6);
else
memcpy(mtKeys.amb[uiBlock].mbt.abtKeyB, &mp.mpa.abtKey, 6);
return true;
}
if (nfc_initiator_select_passive_target(pnd, nmMifare, nt.nti.nai.abtUid, nt.nti.nai.szUidLen, NULL) <= 0) {
ERR("tag was removed");
return false;
}
}
}
return false;
}
