def to_curve25519_private_key(self):
"""
Converts a :class:`~nacl.signing.SigningKey` to a
:class:`~nacl.public.PrivateKey`
:rtype: :class:`~nacl.public.PrivateKey`
"""
sk = self._signing_key
raw_private = nacl.bindings.crypto_sign_ed25519_sk_to_curve25519(sk)
return _Curve25519_PrivateKey(raw_private)
def to_curve25519_private_key(self):
"""
Converts a :class:`~nacl.signing.SigningKey` to a
:class:`~nacl.public.PrivateKey`
:rtype: :class:`~nacl.public.PrivateKey`
"""
sk = self._signing_key
raw_private = nacl.bindings.crypto_sign_ed25519_sk_to_curve25519(sk)
return _Curve25519_PrivateKey(raw_private)