generate_hmac_lau.cs

Example of using HMAC generation with Swift Local Authentication (LAU).

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();
 
            din.Connect(address, user, pass);
 
            string hmacKeyName = "hmac_key";
 
            Console.Out.WriteLine("Generate HMAC key: {0}\n", hmacKeyName);
            din.RemoveObject(hmacKeyName);
 
            byte[] hmacKeyData = Encoding.ASCII.GetBytes("LEFTLAUCSHARPNETRIGHTLAUSWIFTRJE");
            din.ImportKey(hmacKeyName, IntPtr.Zero, hmacKeyData,
                        DinamoClient.BLOB_TYPE.PLAINTEXTKEY_BLOB,
                        DinamoClient.KEY_ALG.ALG_HMAC_SHA2_256);
 
            String message = @"{1:F01BANKAEBBAXXX0004000001}{2:I999BANKAEBBXXXXN}{4:
:20:LAUTEST1
:79:THIS IS EXAMPLE1 FOR LAU TEST RJE CSHARP
-}";
 
            Console.Out.WriteLine("Generate HMAC in one call.\n");
            byte[] hmac = din.generateMAC(DinamoClient.HASH_ALG.ALG_HMAC_SHA2_256,
                                        hmacKeyName, Encoding.ASCII.GetBytes(message));
 
            Console.Out.WriteLine("hmac: {0}\n", BitConverter.ToString(hmac).Replace("-", string.Empty));
 
 
            din.Disconnect();
        }
    }
 
}