Generates a private key based on the password.

        SHA-256 is a member of the SHA-2 cryptographic hash functions designed by
        the NSA. SHA stands for Secure Hash Algorithm. The password is converted
        to bytes and hashed with SHA-256. The binary output is converted to a hex
        representation.

        Args:
            data (str): The data to be hashed with SHA-256.

        Returns:
            bytes: The hexadecimal representation of the hashed binary data.

def generate_private_key(self):
        """
        Generates a private key based on the password.

        SHA-256 is a member of the SHA-2 cryptographic hash functions designed by
        the NSA. SHA stands for Secure Hash Algorithm. The password is converted
        to bytes and hashed with SHA-256. The binary output is converted to a hex
        representation.

        Args:
            data (str): The data to be hashed with SHA-256.

        Returns:
            bytes: The hexadecimal representation of the hashed binary data.
        """
        random_string = base64.b64encode(os.urandom(4096)).decode('utf-8')
        binary_data = bytes(random_string, 'utf-8')
        hash_object = hashlib.sha256(binary_data)
        message_digest_bin = hash_object.digest()
        message_digest_hex = binascii.hexlify(message_digest_bin)
        return message_digest_hex