[fix] #74 Support binary signed data (Break BC)

duniterpy/key/verifying_key.py

@@ -58,13 +58,13 @@ class VerifyingKey(libnacl.sign.Verifier):
         except ValueError:
             return False
 
-    def verify_message(self, message: bytes) -> str:
+    def get_verified_data(self, data: bytes) -> bytes:
         """
-        Check specified signed message signature and return message
+        Check specified signed data signature and return data
 
-        Return error message if signature is invalid
+        Raise exception if signature is not valid
 
-        :param bytes message: Message + signature
-        :return str:
+        :param data: Data + signature
+        :return:
         """
-        return self.verify(message).decode('utf-8')
+        return self.verify(data)

examples/verify_binary_signed_message.py

@@ -23,7 +23,7 @@ if __name__ == '__main__':
     # Verify the message!
     verifier = VerifyingKey(pubkeyBase58)
     try:
-        message = verifier.verify_message(signed_message)
+        message = verifier.get_verified_data(signed_message).decode('utf-8')
         print("Signature valid for this message:")
     except ValueError as error:
         message = str(error)