generate_hmac.cs

Example of the use of HMAC generation.

See Note on examples.

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Dinamo;
using Dinamo.Hsm;
 
namespace GenerateMAC
{
    class Program
    {
        static void Main(string[] args)
        {
            string address = "10.0.0.1";
            string user = "master";
            string pass = "12345678";
 
 
            DinamoClient din = new DinamoClient();
 
            //Conecta ao HSM
            din.Connect(address, user, pass);
 
            string hmacKeyName = "hmac_key";
 
            Console.Out.WriteLine("Generate HMAC key:\n {0}", hmacKeyName);
            din.RemoveObject(hmacKeyName);
            din.GenerateKey(hmacKeyName, DinamoClient.KEY_ALG.ALG_HMAC_SHA2_256, true);
 
            byte []message1 = new byte[]
           {
               0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
               0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38
           };
 
 
            byte []message2 = new byte[]
            {
              0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31,
              0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32, 0x32,
            };
 
            Console.Out.WriteLine("Generate HMAC in one call.\n");
            byte[] hmac = din.generateMAC(DinamoClient.HASH_ALG.ALG_HMAC_SHA2_256, hmacKeyName, message1);
 
            Console.Out.WriteLine("hmac: {0}\n", BitConverter.ToString(hmac).Replace("-", string.Empty));
 
            Console.Out.WriteLine("Generate HMAC in multiple calls.\n");
            din.initMAC(DinamoClient.HASH_ALG.ALG_HMAC_SHA2_256, hmacKeyName);
            din.updateMAC(message1);
            din.updateMAC(message2);
            byte[] hmac2 = din.endMAC();
            Console.Out.WriteLine("hmac2: {0}\n", BitConverter.ToString(hmac2).Replace("-", string.Empty));
 
            din.Disconnect();
        }
    }
 
}