!dV@sdZddgZddlZddlmZmZmZmZdadZ dd Z d dZ d d d Z ddZ ddZdS)z5 Create and verify jws-js format Ed25519 signatures. signverifyN)urlsafe_b64decodeurlsafe_b64encodenativebinaryZEd25519c CsOtsKyddlaWn(ttfk r@ddlmaYnXtntS)z&Lazy import-and-test of ed25519 modulerN) ed25519py) ed25519ll ImportErrorOSErrorr testrr:/tmp/pip-build-0jahl3lb/wheel/wheel/signatures/__init__.py get_ed25519lls rc Cstitd6itd6tt|jd6d6}tttj|dd}tttj|dd}dj||f}t j ||j }|dt j }t|}iit|d 6t|d 6gd 6t|d 6S) z_Return a JWS-JS format signature given a JSON-serializable payload and an Ed25519 keypair.algktyvkjwk sort_keysT.Nheader signature recipientspayload) rALGrrrrjsondumpsjoinr Z crypto_signskZSIGNATUREBYTES) rZkeypairrZencoded_headerencoded_payload secured_inputsig_msgrZencoded_signaturerrrrs !! rcCs|st|ndS)N) ValueError) conditionmessagerrr assertTrue4sr(cCst|d}t|d}g}x|D]}tt|dkdj|t|d}t|d}tjtt|}t|dt kdj|dd|d krd |d kr|d d|d d s  "  &