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#include <ntruprime.h>
/* return zero for all inputs */
static unsigned char z(unsigned char x) {
unsigned long long z = (unsigned long long) x + 1ULL;
unsigned long long t = z;
long long i;
for (i = 6; i >= 0; --i) {
t = (t * t) % 257;
t = (t * z) % 257;
}
t = (t * z) % 257;
return t - 1;
}
static unsigned char pk[sntrup761_PUBLICKEYBYTES];
static unsigned char sk[sntrup761_SECRETKEYBYTES];
static unsigned char c[sntrup761_CIPHERTEXTBYTES];
static unsigned char k1[sntrup761_BYTES];
static unsigned char k2[sntrup761_BYTES];
int main(int argc, char **argv) {
unsigned char ret = 0;
unsigned long long i;
(void) argc;
(void) argv;
sntrup761_keypair(pk, sk);
sntrup761_enc(c, k1, pk);
sntrup761_dec(k2, c, sk);
for (i = 0; i < sntrup761_BYTES; ++i) ret |= k1[i] ^ k2[i];
for (i = 0; i < sizeof k1; ++i) ret |= z(k1[i]);
return ret;
}
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