eft_gen_verify_cvv.cs

Example of CVV generation and verification.

See Note on examples.

using System;
using System.IO;
using Dinamo.Hsm;
 
namespace EFTGenVerifyCVV
{
    class Program
    {
        static void Main(string[] args)
        {
            string address = "127.0.0.1";
            string user = "master";
            string pass = "12345678";
 
            DinamoClient hsm = new DinamoClient();
 
            /*
                Connects to HSM
             */
 
            hsm.Connect(address, user, pass);
 
            /*
                Import test key
            */
 
            string keyId = "cvk";
            byte[] keyData = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
                              0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10};
            IntPtr keyHandle = hsm.ImportKey(keyId, IntPtr.Zero, keyData,
                                             DinamoClient.BLOB_TYPE.PLAINTEXTKEY_BLOB,
                                             DinamoClient.KEY_ALG.ALG_3DES_112);
 
            /*
                Generate a CVV
                This test generates CVV 561.
            */
 
            string pan ="4123456789012345";
            string expirationDate ="8701";
            string serviceCode ="101";
 
            string cvv = hsm.GenCVV(keyId, pan, expirationDate, serviceCode);
            Console.WriteLine("cvv: {0}", cvv);
 
            bool isValidCvv = hsm.VerifyCVV(keyId, pan, expirationDate,
                                            serviceCode, cvv);
            Console.WriteLine("cvv is {0}!", isValidCvv ? "valid" : "invalid");
 
            /*
                Release handle, remove key and disconnect
            */
 
            hsm.DestroyKey(keyHandle);
            hsm.RemoveObject(keyId);
            hsm.Disconnect();
        }
    }
}