Get Private Key as a String

FirmaSAT Manual

Gets the private key data as a base64 string.
Obtiene los datos de la clave privada en forma de cadena base64.

Cmd :	GETKEYSTRING Command
.NET :	Sat.GetKeyAsString Method
VBA/VB6 :	satGetKeyAsString Function
C (ANSI) :	SAT_GetKeyAsString Function
C++ (STL) :	firmasat::Sat::GetKeyAsString

WARNING: Giving this data to an untrusted third party is a major security risk.