permutations.c

#include "permutations.h"

#include "round.h"

#if !ASCON_UNROLL_LOOPS || ASCON_SINGLE_PERM

const uint64_t constants[12] = {
    0x0101010100000000ull, 0x0101010000000001ull, 0x0101000100000100ull,
    0x0101000000000101ull, 0x0100010100010000ull, 0x0100010000010001ull,
    0x0100000100010100ull, 0x0100000000010101ull, 0x0001010101000000ull,
    0x0001010001000001ull, 0x0001000101000100ull, 0x0001000001000101ull};

#endif

#if ASCON_INLINE_PERM

#elif ASCON_SINGLE_PERM

void P(state_t* s, uint8_t rounds) {
  printstate(" permutation input", s);
  for (int i = START(rounds); i < 12; ++i) ROUND(s, constants[i]);
}

#else /* !ASCON_INLINE_PERM && !ASCON_SINGLE_PERM */

void P12(state_t* s) {
  printstate(" permutation input", s);
  P12ROUNDS(s);
}

#if defined(CRYPTO_ABYTES) && ASCON_RATE == 16
void P8(state_t* s) {
  printstate(" permutation input", s);
  P8ROUNDS(s);
}
#endif

#if defined(CRYPTO_ABYTES) && ASCON_RATE == 8
void P6(state_t* s) {
  printstate(" permutation input", s);
  P6ROUNDS(s);
}
#endif

#endif