bchain_eddsa_sign.cs

Example of generating an EdDsa key and signature using the blockchain module.

See Note on examples.

using Dinamo.Hsm;
using System;
using System.Text;
using System.IO;
 
namespace BchainEddsaSign
{
    class Program
    {
        private static String addr = "127.0.0.1";
        private static String userId = "test";
        private static String userPwd = "12345678";
 
        static void Main(string[] args)
        {
            String keyId = "key";
 
            DinamoClient api = new DinamoClient();
            try {
                /*
                    Connect to HSM
                */
                api.Connect(addr, userId, userPwd);
                Console.Out.WriteLine("Connected successfully!");
 
                api.RemoveObjectIfExists(keyId);
 
                /*
                  Generates the EdDsa key marked for use in the blockchain module.
                */
                api. BchainGenerateKey(DinamoClient.KEY_ALG.ALG_ECX_ED25519, keyId, false, false);
                Console.Out.WriteLine("Key generated successfully!");
 
 
                byte[] data = Encoding.UTF8.GetBytes("Dinamo Networks");
 
                /*
                    Signs the data using the generated EdDsa key.
                */
                byte[] signature = api. BchainEdDsaSign(DinamoApi.DN_BCHAIN_EDDSA_SIG_PURE,
                                                       DinamoApi.DN_BCHAIN_EDDSA_CSTR_UNUSED,
                                                       data, keyId);
                Console.Out.WriteLine("Signature generated successfully!");
                Console.Out.WriteLine("Signature: " + BitConverter.ToString(signature).Replace("-", ""));
            } catch (DinamoException e) {
                Console.Out.WriteLine(e.Message);
            } finally{
                /*
                    Disconnects from HSM
                */
                api.Disconnect();
                Console.Out.WriteLine("Successfully disconnected!");
            }
        }
    }
}