crypto_sign_ed25519
if (crypto_sign_ed25519(sig, &smlen, signbuf, sizeof(signbuf),
int crypto_sign_ed25519(unsigned char *, unsigned long long *,
crypto_sign_ed25519(sigbuf, &siglen, msg, msglen, seckey);
int crypto_sign_ed25519(unsigned char *, unsigned long long *,
if ((ret = crypto_sign_ed25519(sig, &smlen, data, datalen,