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add: fast 8bit reversal.

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iceman1001 2018-01-27 22:20:56 +01:00
commit ede55a1498
5 changed files with 22 additions and 9 deletions
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armsrc/iso14443a.c
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@ -2503,7 +2503,7 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
if (nt_diff == 0 && first_try)
par_low = par[0] & 0xE0; // there is no need to check all parities for other nt_diff. Parity Bits for mf_nr_ar[0..2] won't change
par_list[nt_diff] = SwapBits(par[0], 8);
par_list[nt_diff] = reflect8(par[0]);
ks_list[nt_diff] = receivedAnswer[0] ^ 0x05; // xor with NACK value to get keystream
// Test if the information is complete