from typing import Union, Callable, Optional
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from typing_extensions import Protocol
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from Crypto.PublicKey.RSA import RsaKey
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class Hash(Protocol):
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def digest(self) -> bytes: ...
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def update(self, bytes) -> None: ...
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class HashModule(Protocol):
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@staticmethod
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def new(data: Optional[bytes]) -> Hash: ...
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MaskFunction = Callable[[bytes, int, Union[Hash, HashModule]], bytes]
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RndFunction = Callable[[int], bytes]
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class PSS_SigScheme:
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def __init__(self, key: RsaKey, mgfunc: MaskFunction, saltLen: int, randfunc: RndFunction) -> None: ...
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def can_sign(self) -> bool: ...
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def sign(self, msg_hash: Hash) -> bytes: ...
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def verify(self, msg_hash: Hash, signature: bytes) -> bool: ...
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def new(rsa_key: RsaKey, mgfunc: Optional[MaskFunction]=None, saltLen: Optional[int]=None, randfunc: Optional[RndFunction]=None) -> PSS_SigScheme: ...
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