crypto_sign_ed25519_keypair_from_seed
int crypto_sign_ed25519_keypair_from_seed(unsigned char *, unsigned char *,
r = crypto_sign_ed25519_keypair_from_seed(pk, sk, seed);
ASSERT_INT_EQ(crypto_sign_ed25519_keypair_from_seed(pk, sk, seed), 0);
if (crypto_sign_ed25519_keypair_from_seed(ed25519_pk, ed25519_sk,
if (crypto_sign_ed25519_keypair_from_seed(ed25519_pk, ed25519_sk,