Assert Permission - Please Look into It

Hi All,
We are trying to find the solution for this for a very long time, hope I
can get solution for this thread.
This dll code is used to decryt the CreditCardNumber, This is working when
I use it in a web application, But I need to know what assert Permission I
need to Give to get the reult...
using System;
using System.Text;
using System.Net;
using System.IO;
using System.Collections.Specialized;
using System.Configuration;
using System.Security.Permissions;
using System.Security.Cryptography;
using FCLX509 = System.Security.Cryptography.X509Certificates;
using WSEX509 = Microsoft.Web.Services2.Security.X509;
using WSECRY = Microsoft.Web.Services2.Security.Cryptography;
namespace CreditCardDecrypt
{
/// <summary>
/// Summary description for DecryptClass.
/// </summary>
///
public class DecryptClass
{
public DecryptClass()
{
//
// TODO: Add constructor logic here
//
}
public static string DecryptCardInfo(string cc,string subjectName,string
storeName)
{
string sCreditCard = "";
try
{
WSEX509.X509CertificateStore.StoreLocation location = WSEX509.X509CertificateStore.StoreLocation.CurrentUser;
WSEX509.X509CertificateStore.StoreProvider provider = WSEX509.X509CertificateStore.StoreProvider.System;
WSEX509.X509CertificateStore store = new WSEX509.X509CertificateStore
(provider, location, storeName);
bool fopen = store.OpenRead();
if(fopen)
{
WSEX509.X509CertificateCollection certs = store.FindCertificateBySubjectString(subjectName);
if (certs.Count > 0)
{
WSEX509.X509Certificate cer = certs[0];
WSECRY.RSACryptoServiceProvider rsaCsp = (WSECRY.RSACryptoServiceProvider)cer.Key;
byte[] cipherData = Convert.FromBase64String(cc);
byte[] plainData = rsaCsp.Decrypt(cipherData, false);
sCreditCard = Encoding.UTF8.GetString(plainData);
}
}
if (store != null)
store.Close();
return sCreditCard;
//return cc;
}
catch(Exception ex)
{
return ex.ToString();
}
}
}
}
--
Message posted via http://www.sqlmonster.comWhat's the exception you get when you run the code.
It should tell you which permission needs to be asserted.
Or you can assert full trust which is less favorable due to security
reasons:
[PermissionSet(SecurityAction.Demand, Name="FullTrust")]
"BALAJI via SQLMonster.com" <forum@.nospam.SQLMonster.com> wrote in message
news:e70202f5043c49539b30bf614b8a6377@.SQLMonster.com...
> Hi All,
> We are trying to find the solution for this for a very long time, hope I
> can get solution for this thread.
> This dll code is used to decryt the CreditCardNumber, This is working when
> I use it in a web application, But I need to know what assert Permission I
> need to Give to get the reult...
> using System;
> using System.Text;
> using System.Net;
> using System.IO;
> using System.Collections.Specialized;
> using System.Configuration;
> using System.Security.Permissions;
> using System.Security.Cryptography;
> using FCLX509 = System.Security.Cryptography.X509Certificates;
> using WSEX509 = Microsoft.Web.Services2.Security.X509;
> using WSECRY = Microsoft.Web.Services2.Security.Cryptography;
> namespace CreditCardDecrypt
> {
> /// <summary>
> /// Summary description for DecryptClass.
> /// </summary>
> ///
> public class DecryptClass
> {
> public DecryptClass()
> {
> //
> // TODO: Add constructor logic here
> //
> }
> public static string DecryptCardInfo(string cc,string subjectName,string
> storeName)
> {
> string sCreditCard = "";
> try
> {
> WSEX509.X509CertificateStore.StoreLocation location => WSEX509.X509CertificateStore.StoreLocation.CurrentUser;
> WSEX509.X509CertificateStore.StoreProvider provider => WSEX509.X509CertificateStore.StoreProvider.System;
> WSEX509.X509CertificateStore store = new WSEX509.X509CertificateStore
> (provider, location, storeName);
> bool fopen = store.OpenRead();
> if(fopen)
> {
> WSEX509.X509CertificateCollection certs => store.FindCertificateBySubjectString(subjectName);
> if (certs.Count > 0)
> {
> WSEX509.X509Certificate cer = certs[0];
> WSECRY.RSACryptoServiceProvider rsaCsp => (WSECRY.RSACryptoServiceProvider)cer.Key;
> byte[] cipherData = Convert.FromBase64String(cc);
> byte[] plainData = rsaCsp.Decrypt(cipherData, false);
> sCreditCard = Encoding.UTF8.GetString(plainData);
> }
> }
> if (store != null)
> store.Close();
> return sCreditCard;
> //return cc;
> }
> catch(Exception ex)
> {
> return ex.ToString();
> }
> }
> }
> }
> --
> Message posted via http://www.sqlmonster.com