File: pre_key_pair.py

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python-x3dh 1.2.0-2
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from typing import NamedTuple

import xeddsa


__all__ = [
    "PreKeyPair"
]


class PreKeyPair(NamedTuple):
    """
    A pre key.
    """

    priv: bytes

    @property
    def pub(self) -> bytes:
        """
        Returns:
            The public key of this pre key.
        """

        return xeddsa.priv_to_curve25519_pub(self.priv)