public void Execute(string[] args)
{
OpenSSL.Core.Random.Seed(rnd_seed);
BigNumber.GeneratorHandler cb = new BigNumber.GeneratorHandler(this.OnStatus);
DH a = new DH(64, DH.Generator5, cb, Console.Out);
DH.CheckCode check = a.Check();
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 safe prime");
}
if ((check & DH.CheckCode.UnableToCheckGenerator) != 0)
{
Console.WriteLine("unable to check the generator value");
}
if ((check & DH.CheckCode.NotSuitableGenerator) != 0)
{
Console.WriteLine("the g value is not a generator");
}
Console.WriteLine();
Console.WriteLine("p ={0}", a.P);
Console.WriteLine("g ={0}", a.G);
DH b = new DH(a.P, a.G);
a.NoExpConstantTime = false;
b.NoExpConstantTime = true;
a.GenerateKeys();
Console.WriteLine("pri 1={0}", a.PrivateKey);
Console.WriteLine("pub 1={0}", a.PublicKey);
b.GenerateKeys();
Console.WriteLine("pri 2={0}", b.PrivateKey);
Console.WriteLine("pub 2={0}", b.PublicKey);
byte[] aout = a.ComputeKey(b.PublicKey);
string astr = BitConverter.ToString(aout);
Console.WriteLine("key1 ={0}", astr);
byte[] bout = b.ComputeKey(a.PublicKey);
string bstr = BitConverter.ToString(bout);
Console.WriteLine("key2 ={0}", bstr);
if (aout.Length < 4 || astr != bstr)
{
throw new Exception("Error in DH routines");
}
a.Dispose();
b.Dispose();
}