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Diffstat (limited to 'jwt/algorithms.py')
| -rw-r--r-- | jwt/algorithms.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/jwt/algorithms.py b/jwt/algorithms.py index 1f8865a..739df80 100644 --- a/jwt/algorithms.py +++ b/jwt/algorithms.py @@ -417,6 +417,12 @@ if has_crypto: except ValueError: key = load_pem_private_key(key, password=None) + # Explicit check the key to prevent confusing errors from cryptography + if not isinstance(key, (EllipticCurvePrivateKey, EllipticCurvePublicKey)): + raise InvalidKeyError( + "Expecting a EllipticCurvePrivateKey/EllipticCurvePublicKey. Wrong key provided for ECDSA algorithms" + ) + return key def sign(self, msg, key): |