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Chg: faster authentication by lower timeout limit. (@pwpiwi)

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This commit is contained in:
iceman1001 2019-12-30 12:50:44 +01:00
parent 9c8abd2091
commit 6121d816e7
1 changed files with 10 additions and 1 deletions
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11
armsrc/mifareutil.c
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@ -127,7 +127,7 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) {
return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);
}
int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t *ntptr, uint32_t *timing) {
int len;
uint32_t pos, nt, ntpp; // Supplied tag nonce
@ -190,8 +190,17 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
// Transmit reader nonce and reader answer
ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);
// save standard timeout
uint32_t save_timeout = iso14a_get_timeout();
// set timeout for authentication response
iso14a_set_timeout(106);
// Receive 4 byte tag answer
len = ReaderReceive(receivedAnswer, receivedAnswerPar);
iso14a_set_timeout(save_timeout);
if (!len) {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("Authentication failed. Card timeout.");
return 2;