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FIX: at least now the special zero parity attack, repeats and doesn't crash. However it doesn't find the key either :(

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This commit is contained in:
iceman1001 2016-08-10 10:55:29 +02:00
commit 6067df30c5
4 changed files with 19 additions and 10 deletions
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7
client/cmdhfmf.c
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@ -217,7 +217,12 @@ start:
if (isOK == -4 && par_list == 0) {
// this special attack when parities is zero, uses checkkeys. Which now with block/keytype option also needs.
// but it uses 0|1 instead of 0x60|0x61...
if (!nonce2key_ex(blockNo, keytype - 0x60 , uid, nt, nr, ks_list, &r_key) ){
if (nonce2key_ex(blockNo, keytype - 0x60 , uid, nt, nr, ks_list, &r_key) ){
PrintAndLog("Key not found (lfsr_common_prefix list is null).");
PrintAndLog("Failing is expected to happen in 25%% of all cases. Trying again with a different reader nonce...");
c.arg[0] = false;
goto start;
} else {
PrintAndLog("Found valid key: %012"llx" \n", r_key);
goto END;
}