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Merge branch 'master' of https://github.com/RfidResearchGroup/proxmark3

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iceman1001 2019-08-27 21:56:22 +02:00
commit b627c8c209
1 changed files with 10 additions and 10 deletions
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20
armsrc/optimized_cipher.c
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@ -101,16 +101,16 @@ static const uint8_t opt_select_LUT[256] = {
/********************** the table above has been generated with this code: ********
#include "util.h"
static void init_opt_select_LUT(void) {
for (int r = 0; r < 256; r++) {
uint8_t r_ls2 = r << 2;
uint8_t r_and_ls2 = r & r_ls2;
uint8_t r_or_ls2 = r | r_ls2;
uint8_t z0 = (r_and_ls2 >> 5) ^ ((r & ~r_ls2) >> 4) ^ ( r_or_ls2 >> 3);
uint8_t z1 = (r_or_ls2 >> 6) ^ ( r_or_ls2 >> 1) ^ (r >> 5) ^ r;
uint8_t z2 = ((r & ~r_ls2) >> 4) ^ (r_and_ls2 >> 3) ^ r;
opt_select_LUT[r] = (z0 & 4) | (z1 & 2) | (z2 & 1);
}
print_result("", opt_select_LUT, 256);
for (int r = 0; r < 256; r++) {
uint8_t r_ls2 = r << 2;
uint8_t r_and_ls2 = r & r_ls2;
uint8_t r_or_ls2 = r | r_ls2;
uint8_t z0 = (r_and_ls2 >> 5) ^ ((r & ~r_ls2) >> 4) ^ ( r_or_ls2 >> 3);
uint8_t z1 = (r_or_ls2 >> 6) ^ ( r_or_ls2 >> 1) ^ (r >> 5) ^ r;
uint8_t z2 = ((r & ~r_ls2) >> 4) ^ (r_and_ls2 >> 3) ^ r;
opt_select_LUT[r] = (z0 & 4) | (z1 & 2) | (z2 & 1);
}
print_result("", opt_select_LUT, 256);
}
***********************************************************************************/