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fix detection

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This commit is contained in:
iceman1001 2023-04-01 12:43:34 +02:00
commit 6e0a6aa1e6
1 changed files with 6 additions and 10 deletions
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16
armsrc/mifarecmd.c
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@ -1229,7 +1229,7 @@ void MifareNested(uint8_t blockNo, uint8_t keyType, uint8_t targetBlockNo, uint8
LED_B_ON();
WDT_HIT();
uint8_t prev_enc_nt[] = {0, 0, 0, 0};
uint32_t prev_enc_nt = 0;
uint8_t prev_counter = 0;
uint16_t unsuccessful_tries = 0;
@ -1303,20 +1303,16 @@ void MifareNested(uint8_t blockNo, uint8_t keyType, uint8_t targetBlockNo, uint8
}
}
if (prev_enc_nt[0] == receivedAnswer[0] &&
prev_enc_nt[1] == receivedAnswer[1] &&
prev_enc_nt[2] == receivedAnswer[2] &&
prev_enc_nt[3] == receivedAnswer[3]
) {
if (nt1 == nt2) {
prev_counter++;
}
memcpy(prev_enc_nt, receivedAnswer, 4);
prev_enc_nt = nt2;
if (prev_counter == 5) {
if (g_dbglevel >= DBG_EXTENDED) {
DbpString("Static encrypted nonce detected, exiting...");
uint32_t a = bytes_to_num(prev_enc_nt, 4);
uint32_t b = bytes_to_num(receivedAnswer, 4);
Dbprintf("( %08x vs %08x )", a, b);
Dbprintf("( %08x vs %08x )", prev_enc_nt, nt2);
}
isOK = PM3_ESTATIC_NONCE;
break;