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mfkey64: abort if key recovery failed

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This commit is contained in:
Philippe Teuwen 2024-09-15 00:10:08 +02:00
commit 17bfed94da
1 changed files with 5 additions and 0 deletions
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5
tools/mfc/card_reader/mfkey64.c
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@ -73,6 +73,11 @@ int main(int argc, char *argv[]) {
printf(" ks3: %08x\n", ks3);
revstate = lfsr_recovery64(ks2, ks3);
if ((revstate->odd == 0) && (revstate->even == 0)) {
printf("\nKey not found :(\n\n");
crypto1_destroy(revstate);
return -1;
}
// Decrypting communication using keystream if presented
if (argc > 6) {