C:/work/OMMR/OCHHP_OMMR_OMMR/Code/Assemblies/SharpSSH/Source/SharpSSH-1.1.1.13.src/SharpSSH/jsch/examples/KeyGen.cs

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using System;
using Tamir.SharpSsh.jsch;

/* KeyGen.cs
 * ====================================================================
 * The following example was posted with the original JSch java library,
 * and is translated to C# to show the usage of SharpSSH JSch API
 * ====================================================================
 * */
namespace Tamir.SharpSsh.jsch.examples
{
        public class KeyGen
        {
                public static void Main(params string[] arg)
                {
                        if(arg.Length<3)
                        {
                                Console.Error.WriteLine(
                                        "usage: java KeyGen rsa output_keyfile comment\n"+
                                        "       java KeyGen dsa  output_keyfile comment");
                                Environment.Exit(-1);
                        }

                        //Get sig type ('rsa' or 'dsa')
                        String _type=arg[0];
                        int type=0;
                        if(_type.Equals("rsa")){type=KeyPair.RSA;}
                        else if(_type.Equals("dsa")){type=KeyPair.DSA;}
                        else 
                        {
                                Console.Error.WriteLine(
                                        "usage: java KeyGen rsa output_keyfile comment\n"+
                                        "       java KeyGen dsa  output_keyfile comment");
                                Environment.Exit(-1);
                        }
                        //Output file name
                        String filename=arg[1];
                        //Signature comment
                        String comment=arg[2];

                        //Create a new JSch instance
                        JSch jsch=new JSch();

                        //Prompt the user for a passphrase for the private key file
                        String passphrase=InputForm.GetUserInput("Enter passphrase (empty for no passphrase)", true);

                        try
                        {
                                //Generate the new key pair
                                KeyPair kpair=KeyPair.genKeyPair(jsch, type);
                                //Set a passphrase
                                kpair.setPassphrase(passphrase);
                                //Write the private key to "filename"
                                kpair.writePrivateKey(filename);
                                //Write the public key to "filename.pub"
                                kpair.writePublicKey(filename+".pub", comment);
                                //Print the key fingerprint
                                Console.WriteLine("Finger print: "+kpair.getFingerPrint());
                                //Free resources
                                kpair.dispose();
                        }
                        catch(Exception e)
                        {
                                Console.WriteLine(e);
                        }
                        Environment.Exit(0);
                }
        }
}

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