void speck_encrypt64(SPECK_TYPE64 const pt[2], SPECK_TYPE64 ct[2], SPECK_TYPE64 const K[SPECK_ROUNDS64])
{
SPECK_TYPE64 i;
ct[0] = pt[0]; ct[1] = pt[1];
for (i = 0; i < SPECK_ROUNDS64; i++){
R64(ct[1], ct[0], K[i]);
}
}
void speck_set_decrypt_key64(SPECK_TYPE64 const K[SPECK_KEY_LEN64], SPECK_TYPE64 S[SPECK_ROUNDS64])
{
SPECK_TYPE64 i, b = K[0];
SPECK_TYPE64 a[SPECK_KEY_LEN64 - 1];
for (i = 0; i < (SPECK_KEY_LEN64 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS64 - 1; i++) {
R64(a[i % (SPECK_KEY_LEN64 - 1)], b, i);
S[i + 1] = b;
}
}
//
// Io stuff
//
// MOD Feb 2005 by GMV: prepared for ODML
// I placed the extended writing functions here to avoid dupicated code.
// But since I am writing data without using Begin or End it may be necessary
// or even just more strait to duplicate these functions and implement them
// into aviwrite directly
void AviList::Write64(uint64_t val){
#ifdef ADM_BIG_ENDIAN
val=R64(val);
#endif
_ff->write((uint8_t *)&val,8);
}