26 lines
773 B
Python
26 lines
773 B
Python
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from typing import Union, overload, Optional
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Buffer = bytes|bytearray|memoryview
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def _HChaCha20(key: Buffer, nonce: Buffer) -> bytearray: ...
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class ChaCha20Cipher:
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block_size: int
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nonce: bytes
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def __init__(self, key: Buffer, nonce: Buffer) -> None: ...
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@overload
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def encrypt(self, plaintext: Buffer) -> bytes: ...
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@overload
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def encrypt(self, plaintext: Buffer, output: Union[bytearray, memoryview]) -> None: ...
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@overload
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def decrypt(self, plaintext: Buffer) -> bytes: ...
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@overload
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def decrypt(self, plaintext: Buffer, output: Union[bytearray, memoryview]) -> None: ...
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def seek(self, position: int) -> None: ...
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def new(key: Buffer, nonce: Optional[Buffer] = ...) -> ChaCha20Cipher: ...
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block_size: int
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key_size: int
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