depau/mfoc-always-skip-probes
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Allow to find default keys using 7bytes UID MIFARE Classic tags

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This commit is contained in:
Romuald Conty 2012-06-02 01:26:48 +00:00
parent 3b02985173
commit 435de61cc5
2 changed files with 4 additions and 4 deletions
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6
src/mfoc.c
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@ -257,7 +257,7 @@ int main(int argc, char * const argv[]) {
// Try to authenticate to all sectors with default keys
// Set the authentication information (uid)
memcpy(mp.mpa.abtUid, t.nt.nti.nai.abtUid, sizeof(mp.mpa.abtUid));
memcpy(mp.mpa.abtAuthUid, t.nt.nti.nai.abtUid + t.nt.nti.nai.szUidLen - 4, sizeof(mp.mpa.abtAuthUid));
// Iterate over all keys (n = number of keys)
n = sizeof(defaultKeys)/sizeof(defaultKeys[0]);
size_t defKey_bytes_todo = defKeys_len;
@ -336,7 +336,7 @@ int main(int argc, char * const argv[]) {
for (m = 0; m < 2; ++m) {
if (e_sector == -1) break; // All keys are default, I am skipping recovery mode
for (j = 0; j < (t.num_sectors); ++j) {
memcpy(mp.mpa.abtUid, t.nt.nti.nai.abtUid, sizeof(mp.mpa.abtUid));
memcpy(mp.mpa.abtAuthUid, t.nt.nti.nai.abtUid + t.nt.nti.nai.szUidLen - 4, sizeof(mp.mpa.abtAuthUid));
if ((dumpKeysA && !t.sectors[j].foundKeyA) || (!dumpKeysA && !t.sectors[j].foundKeyB)) {
// First, try already broken keys
@ -500,7 +500,7 @@ int main(int argc, char * const argv[]) {
memcpy(mtDump.amb[block].mbt.abtKeyB,t.sectors[i].KeyB,6);
if (!failure) memcpy(mtDump.amb[block].mbt.abtAccessBits,mp.mpd.abtData+6,4);
} else if (!failure) memcpy(mtDump.amb[block].mbd.abtData, mp.mpd.abtData,16);
memcpy(mp.mpa.abtUid,t.nt.nti.nai.abtUid,4);
memcpy(mp.mpa.abtAuthUid, t.nt.nti.nai.abtUid + t.nt.nti.nai.szUidLen - 4, sizeof(mp.mpa.abtAuthUid));
}
// Finally save all keys + data to file

2
src/mifare.h
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@ -55,7 +55,7 @@ typedef enum {
// MIFARE command params
struct mifare_param_auth {
uint8_t abtKey[6];
uint8_t abtUid[4];
uint8_t abtAuthUid[4];
};
struct mifare_param_data {