i want corresponding code in vb.net. plese help me....the follwing is the code
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Security.Cryptography;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
/// <summary>
/// Summary description for Cryptography
/// </summary>
public class Cryptography
{
public static RSACryptoServiceProvider rsa;
public static void AssignParameter()
{
const int PROVIDER_RSA_FULL = 1;
const string CONTAINER_NAME = "SpiderContainer";
CspParameters cspParams;
cspParams = new CspParameters(PROVIDER_RSA_FULL);
cspParams.KeyContainerName = CONTAINER_NAME;
cspParams.Flags = CspProviderFlags.UseMachineKeyStore;
cspParams.ProviderName = "Microsoft Strong Cryptographic Provider";
rsa = new RSACryptoServiceProvider(cspParams);
}
public static string EncryptData(string data2Encrypt, string path)
{
AssignParameter();
//StreamReader reader = new StreamReader(@"C:\Inetpub\wwwroot\dotnetspiderencryption\publickey.xml");
StreamReader reader = new StreamReader( path + "/publickey.xml");
string publicOnlyKeyXML = reader.ReadToEnd();
rsa.FromXmlString(publicOnlyKeyXML);
reader.Close();
//read plaintext, encrypt it to ciphertext
byte[] plainbytes =System.Text.Encoding.UTF8.GetBytes(data2Encrypt);
byte[] cipherbytes = rsa.Encrypt(plainbytes, false);
return Convert.ToBase64String(cipherbytes);
}
public static void AssignNewKey(string path)
{
AssignParameter();
//provide public and private RSA params
StreamWriter writer = new StreamWriter(path + "/privatekey.xml");
string publicPrivateKeyXML = rsa.ToXmlString(true);
writer.Write(publicPrivateKeyXML);
writer.Close();
//provide public only RSA params
writer = new StreamWriter(path + "/publickey.xml");
string publicOnlyKeyXML = rsa.ToXmlString(false);
writer.Write(publicOnlyKeyXML);
writer.Close();
}
public static string DecryptData(string data2Decrypt, string path)
{
AssignParameter();
byte[] getpassword = Convert.FromBase64String(data2Decrypt);
StreamReader reader = new StreamReader(path + "/privatekey.xml");
string publicPrivateKeyXML = reader.ReadToEnd();
rsa.FromXmlString(publicPrivateKeyXML);
reader.Close();
//read ciphertext, decrypt it to plaintext
byte[] plain =rsa.Decrypt(getpassword,false);
return System.Text.Encoding.UTF8.GetString(plain);
}
}