from typing import Any, Callable, Optional, Tuple

BadSignatureError: Any

def create_keypair(entropy: Callable[[int], bytes] = ...) -> Tuple[SigningKey, VerifyingKey]: ...

class BadPrefixError(Exception): ...

def remove_prefix(s_bytes: bytes, prefix: bytes) -> bytes: ...
def to_ascii(s_bytes: bytes, prefix: str = ..., encoding: str = ...) -> str: ...
def from_ascii(s_ascii: str, prefix: str = ..., encoding: str = ...) -> bytes: ...

class SigningKey:
    sk_s: bytes
    vk_s: bytes
    def __init__(self, sk_s: bytes, prefix: str = ..., encoding: Optional[str] = ...) -> None: ...
    def to_bytes(self, prefix: str = ...) -> bytes: ...
    def to_ascii(self, prefix: str = ..., encoding: Optional[str] = ...) -> str: ...
    def to_seed(self, prefix: str = ...) -> bytes: ...
    def __eq__(self, them: object) -> bool: ...
    def get_verifying_key(self) -> VerifyingKey: ...
    def sign(self, msg: bytes, prefix: str = ..., encoding: Optional[str] = ...) -> bytes: ...

class VerifyingKey:
    vk_s: bytes
    def __init__(self, vk_s: bytes, prefix: str = ..., encoding: Optional[str] = ...) -> None: ...
    def to_bytes(self, prefix: str = ...) -> bytes: ...
    def to_ascii(self, prefix: str = ..., encoding: Optional[str] = ...) -> str: ...
    def __eq__(self, them: object) -> bool: ...
    def verify(self, sig: bytes, msg: bytes, prefix: str = ..., encoding: Optional[str] = ...) -> bool: ...

def selftest() -> None: ...