Using the [stringCompare](https://github.com/rugk/threema-msgapi-sdk-php/blob/master/source/Threema/MsgApi/Tools/CryptToolSodium.php#L154) and [removeVar](https://github.com/rugk/threema-msgapi-sdk-php/blob/master/source/Threema/MsgApi/Tools/CryptToolSodium.php#L175) methods of the CryptTool can improve the security. As said in https://github.com/rugk/threema-msgapi-sdk-php/pull/42#issuecomment-247810323 they are implemented, but not currently used in the library.
Using the stringCompare and removeVar methods of the CryptTool can improve the security.
As said in #42 (comment) they are implemented, but not currently used in the library.