public void Execute(string[] args)
{
try
{
options.ParseArguments(args);
}
catch (Exception)
{
Usage();
return;
}
string infile = this.options.GetString("infile");
BIO bin = Program.GetInFile(options.GetString("infile"));
DH dh;
string inform = this.options["inform"] as string;
if (inform == "PEM")
{
dh = DH.FromParametersPEM(bin);
}
else if (inform == "DER")
{
dh = DH.FromParametersDER(bin);
}
else
{
Usage();
return;
}
if (this.options.IsSet("text"))
{
Console.WriteLine(dh);
}
if (this.options.IsSet("check"))
{
DH.CheckCode check = dh.Check();
if ((check & DH.CheckCode.NotSuitableGenerator) != 0)
{
Console.WriteLine("the g value is not a generator");
}
if ((check & DH.CheckCode.CheckP_NotPrime) != 0)
{
Console.WriteLine("p value is not prime");
}
if ((check & DH.CheckCode.CheckP_NotSafePrime) != 0)
{
Console.WriteLine("p value is not a safe prime");
}
if ((check & DH.CheckCode.UnableToCheckGenerator) != 0)
{
Console.WriteLine("unable to check the generator value");
}
if (check == 0)
{
Console.WriteLine("DH parameters appear to be ok");
}
}
if (this.options.IsSet("code"))
{
Console.WriteLine("-code is currently not implemented.");
}
if (!this.options.IsSet("noout"))
{
string outfile = this.options["outfile"] as string;
BIO bout;
bool outmem = false;
if (string.IsNullOrEmpty(outfile))
{
bout = BIO.MemoryBuffer();
outmem = true;
}
else
{
bout = BIO.File(outfile, "w");
}
string outform = this.options["outform"] as string;
if (outform == "DER")
{
dh.WriteParametersDER(bout);
}
else if (outform == "PEM")
{
dh.WriteParametersPEM(bout);
}
else
{
Usage();
return;
}
if (outmem)
{
Stream cout = Console.OpenStandardOutput();
ArraySegment <byte> segment = bout.ReadBytes((int)bout.NumberWritten);
cout.Write(segment.Array, segment.Offset, segment.Count);
}
}
}