imgtool: Fix ECDSA signatures
Earlier refactoring created a call for get_public_bytes() that was added
to the RSA class, but missed on the ECDSA class.  Add this call so that
ECDSA signatures will work again.
@@ -101,6 +101,10 @@ class ECDSA256P1():
with open(path, 'wb') as f:
f.write(self.key.to_pem())
+ def get_public_bytes(self):
+ vk = self.key.get_verifying_key()
+ return bytes(vk.to_der())
+
def emit_c(self):
vk = self.key.get_verifying_key()
print(AUTOGEN_MESSAGE)
