from typing import *


# extmod/modtrezorcrypto/modtrezorcrypto-curve25519.h
def generate_secret() -> bytes:
    """
    Generate secret key.
    """


# extmod/modtrezorcrypto/modtrezorcrypto-curve25519.h
def publickey(secret_key: bytes) -> bytes:
    """
    Computes public key from secret key.
    """


# extmod/modtrezorcrypto/modtrezorcrypto-curve25519.h
def multiply(secret_key: bytes, public_key: bytes) -> bytes:
    """
    Multiplies point defined by public_key with scalar defined by
    secret_key. Useful for ECDH.
    """