from types import ModuleType from typing import Union, Tuple, Dict, overload, Optional __all__ = ['GcmMode'] Buffer = Union[bytes, bytearray, memoryview] class GcmMode(object): block_size: int nonce: Buffer def __init__(self, factory: ModuleType, key: Buffer, nonce: Buffer, mac_len: int, cipher_params: Dict) -> None: ... def update(self, assoc_data: Buffer) -> GcmMode: ... @overload def encrypt(self, plaintext: Buffer) -> bytes: ... @overload def encrypt(self, plaintext: Buffer, output: Union[bytearray, memoryview]) -> None: ... @overload def decrypt(self, plaintext: Buffer) -> bytes: ... @overload def decrypt(self, plaintext: Buffer, output: Union[bytearray, memoryview]) -> None: ... def digest(self) -> bytes: ... def hexdigest(self) -> str: ... def verify(self, received_mac_tag: Buffer) -> None: ... def hexverify(self, hex_mac_tag: str) -> None: ... @overload def encrypt_and_digest(self, plaintext: Buffer) -> Tuple[bytes, bytes]: ... @overload def encrypt_and_digest(self, plaintext: Buffer, output: Buffer) -> Tuple[None, bytes]: ... def decrypt_and_verify(self, ciphertext: Buffer, received_mac_tag: Buffer, output: Optional[Union[bytearray, memoryview]] = ...) -> bytes: ...