* The verification process is most likely asynchronous. That's why the
* application must call the `completion' callback when the verification
* process has been completed. The library then calls the user callback
* (SilcSKECb), if it was provided for the function that takes this callback
* The verification process is most likely asynchronous. That's why the
* application must call the `completion' callback when the verification
* process has been completed. The library then calls the user callback
* (SilcSKECb), if it was provided for the function that takes this callback