def sign()

in kinto-remote-settings/src/kinto_remote_settings/signer/backends/local_ecdsa.py [0:0]


    def sign(self, payload):
        if isinstance(payload, str):  # pragma: no cover
            payload = payload.encode("utf-8")

        payload = SIGN_PREFIX + payload
        private_key = self.load_private_key()
        signature = private_key.sign(
            payload, hashfunc=hashlib.sha384, sigencode=ecdsa.util.sigencode_string
        )
        x5u = ""
        enc_signature = base64.urlsafe_b64encode(signature).decode("utf-8")
        return {"signature": enc_signature, "x5u": x5u, "mode": "p384ecdsa"}