random bytes.c

#include <openssl/rand.h>
#include <stdio.h>

int main(void) {
    unsigned char c;
    int i;
    for(i = 0; i < 100; i++) {
        RAND_pseudo_bytes(&c, 1);
        printf("Trial %d: %hhu %hhu\n", i, c, (c < 24 ? ~c : c));
    }
    return 0;
}