from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import x25519

private_key = x25519.X25519PrivateKey.generate()

public_key = private_key.public_key()

private_key_bytes = private_key.private_bytes(
    encoding=serialization.Encoding.Raw,
    format=serialization.PrivateFormat.Raw,
    encryption_algorithm=serialization.NoEncryption(),
)

public_key_bytes = public_key.public_bytes(
    encoding=serialization.Encoding.Raw, format=serialization.PublicFormat.Raw
)


def cast_bytes(byte_data):
    return ", ".join(f"0x{byte:02x}" for byte in byte_data)


print("Private Key:", cast_bytes(private_key_bytes))
print("Public Key:", cast_bytes(public_key_bytes))