fixup! Remove ecdsa dependency

Nitrokey · Oct 24, 2024 · 26e38eb · 26e38eb
1 parent f75aa43
commit 26e38eb
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/nitrokey/trussed/_bootloader/nrf52.py b/src/nitrokey/trussed/_bootloader/nrf52.py
@@ -49,6 +49,7 @@ class SignatureKey:
     def public_key(self) -> ec.EllipticCurvePublicKey:
         public_key = serialization.load_der_public_key(bytes.fromhex(self.der))
         assert isinstance(public_key, ec.EllipticCurvePublicKey)
+        assert isinstance(public_key.curve, ec.SECP256R1)
         return public_key
 
     def verify(self, signature: bytes, message: bytes) -> bool: