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#include "crypto_dh_x25519.h"
#include "haslib25519.h"
#ifdef HASLIB25519
#include <lib25519.h>
int crypto_dh_x25519_lib25519(unsigned char *k, const unsigned char *pk,
const unsigned char *sk) {
lib25519_dh_x25519(k, pk, sk);
return 0;
}
int crypto_dh_x25519_lib25519_keypair(unsigned char *pk, unsigned char *sk) {
lib25519_dh_x25519_keypair(pk, sk);
return 0;
}
#else
#include "randombytes.h"
#include "crypto_scalarmult_curve25519.h"
int crypto_dh_x25519_tinyssh(unsigned char *k, const unsigned char *pk,
const unsigned char *sk) {
return crypto_scalarmult_curve25519(k, sk, pk);
}
static const unsigned char basepoint[32] = {9};
int crypto_dh_x25519_tinyssh_keypair(unsigned char *q, unsigned char *n) {
randombytes(n, 32);
return crypto_dh_x25519(q, basepoint, n);
}
#endif
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