SignFile Method
Signs a file.
Object Oriented Interface
public function doSignFile($sourcefile, $destfile, $detached);
Procedural Interface
secureblackboxlite_publickeycrypto_do_signfile($res, $sourcefile, $destfile, $detached);
Remarks
Use this method to sign a file and save the protected message to another file.
Specify the signing key in Key property before the signing. Please make sure the assigned key has a private key associated with it.
Set Detached parameter to false to create an enveloped/enveloping signature. This maynot be supported by certain algorithms or encryption modes.