INNER CODE UNIT · Python

sign

open-quantum-safe/liboqs-python · oqs/oqs.py:723

    def sign(self, message: bytes) -> bytes:
        """
        Signs the provided message and returns the signature.

        For external-mu variants (is_extmu, e.g. ML-DSA-*-extmu), message is the
        externally computed mu rather than a raw message; liboqs enforces its
        length (64 bytes for ML-DSA).

        :param message: the message to sign (the externally computed mu for
        external-mu variants).
        """
        # Provide length to avoid extra null char
        c_message = ct.create_string_buffer(message, len(message))
        c_message_len = ct.c_size_t(len(c_message))
        c_signature = ct.create_string_buffer(self._sig.contents.length_signature)

        # Initialize to maximum signature size
        c_signature_len = ct.c_size_t(self._sig.contents.length_signature)

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