src/crypto.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

#include "crypto.h"

unsigned i_lr(unsigned y, unsigned offset){
    return ( y << offset ) | ( y >> (32 - offset));
}

unsigned i_rr(unsigned x, unsigned n) {
    return (x >> n % 32) | (x << (32-n) % 32);
}

uint64_t i_lr64(uint64_t y, uint64_t offset){
    return ( y << offset ) | ( y >> (64 - offset));
}

uint64_t i_rr64(uint64_t x, uint64_t n) {
    return (x >> n) | (x << (64-n));
}