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changed "data num" to accept -r -i parameters where it will reverse or inverse the values.\nrenamed some util functions

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iceman1001 2023-12-07 16:44:31 +01:00
commit 97e2d7f026
13 changed files with 149 additions and 51 deletions
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8
armsrc/optimized_cipher.c
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@ -115,12 +115,12 @@ static void init_opt_select_LUT(void) {
print_result("", opt_select_LUT, 256);
}
***********************************************************************************/
/*
#define opt__select(x,y,r) (4 & (((r & (r << 2)) >> 5) ^ ((r & ~(r << 2)) >> 4) ^ ( (r | r << 2) >> 3)))\
|(2 & (((r | r << 2) >> 6) ^ ( (r | r << 2) >> 1) ^ (r >> 5) ^ r ^ ((x^y) << 1)))\
|(1 & (((r & ~(r << 2)) >> 4) ^ ((r & (r << 2)) >> 3) ^ r ^ x))
/*
* Some background on the expression above can be found here...
uint8_t xopt__select(bool x, bool y, uint8_t r)
{
@ -201,7 +201,9 @@ static void opt_suc(const uint8_t *k, State_t *s, const uint8_t *in, uint8_t len
}
//For tag MAC, an additional 32 zeroes
if (add32Zeroes) {
for (int i = 0; i < 16; i++) {
for (int i = 0; i < 8; i++) {
opt_successor(k, s, 0);
opt_successor(k, s, 0);
opt_successor(k, s, 0);
opt_successor(k, s, 0);
}