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uniformize tools/mfc/card_reader

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This commit is contained in:
Philippe Teuwen 2024-09-02 11:11:40 +02:00
commit 5b6a898fe7
7 changed files with 60 additions and 54 deletions
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13
tools/mfc/card_reader/mfkey64.c
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@ -60,14 +60,15 @@ int main(int argc, char *argv[]) {
// Generate lfsr successors of the tag challenge
printf("\nLFSR successors of the tag challenge:\n");
uint32_t p64 = prng_successor(nt, 64);
printf(" nt': %08x\n", p64);
printf(" nt'': %08x\n", prng_successor(p64, 32));
uint32_t ar = prng_successor(nt, 64);
uint32_t at = prng_successor(ar, 32);
printf(" ar: %08x\n", ar);
printf(" at: %08x\n", at);
// Extract the keystream from the messages
printf("\nKeystream used to generate {ar} and {at}:\n");
ks2 = ar_enc ^ p64;
ks3 = at_enc ^ prng_successor(p64, 32);
printf("\nKeystreams used to generate {ar} and {at}:\n");
ks2 = ar_enc ^ ar;
ks3 = at_enc ^ at;
printf(" ks2: %08x\n", ks2);
printf(" ks3: %08x\n", ks3);