password encryption in asp.net

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i want the corresponding code in vb.net with asp.net. below is the c# code. plese help me. i am new in asp.net

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);
    }
}

Posted 11-Dec-11 5:55am

jincyn

Updated 11-Dec-11 6:20am

Abhinav S

v2

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Abhinav S 11-Dec-11 12:21pm

Pre tags added.

4 solutions

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E.F. Nijboer · Accepted Answer · 2011-12-11T06:24:00

Solution 1

There are free online converters that you can use. Have a look at this link for example:
http://www.developerfusion.com/tools/convert/csharp-to-vb/[^]

Good luck!

Posted 11-Dec-11 6:24am

E.F. Nijboer

Comments

Wonde Tadesse 11-Dec-11 15:50pm

5+

Monjurul Habib 12-Dec-11 13:36pm

5!

Wonde Tadesse · Accepted Answer · 2011-12-11T06:27:00

Solution 2

Have a look at this tool.Code Translation for .NET (C#<->VB.NET)[^]

Posted 11-Dec-11 6:27am

Wonde Tadesse

Updated 11-Dec-11 9:49am

v2

Comments

Monjurul Habib 12-Dec-11 13:36pm

5!

Wonde Tadesse 12-Dec-11 18:02pm

Thanks

RaviRanjanKr · Accepted Answer · 2011-12-11T09:12:00

Solution 3

Try
http://converter.telerik.com/[^]
to Convert online VB to C# or C# to VB

Posted 11-Dec-11 9:12am

RaviRanjanKr

Comments

Wonde Tadesse 11-Dec-11 15:49pm

5+

RaviRanjanKr 12-Dec-11 14:39pm

Thanks :)

Monjurul Habib 12-Dec-11 13:36pm

5!

RaviRanjanKr 12-Dec-11 14:39pm

Thanks Monjurul :)

sriman.ch · Accepted Answer · 2011-12-11T17:00:00

Hi
try the following

Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Security.Cryptography
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.IO
''' <summary>
''' Summary description for Cryptography
''' </summary>
Public Class Cryptography
	Public Shared rsa As RSACryptoServiceProvider
	Public Shared Sub AssignParameter()
		Const  PROVIDER_RSA_FULL As Integer = 1
		Const  CONTAINER_NAME As String = "SpiderContainer"
		Dim cspParams As CspParameters
		cspParams = New CspParameters(PROVIDER_RSA_FULL)
		cspParams.KeyContainerName = CONTAINER_NAME
		cspParams.Flags = CspProviderFlags.UseMachineKeyStore
		cspParams.ProviderName = "Microsoft Strong Cryptographic Provider"
		rsa = New RSACryptoServiceProvider(cspParams)
	End Sub
	Public Shared Function EncryptData(data2Encrypt As String, path As String) As String
		AssignParameter()
		'StreamReader reader = new StreamReader(@"C:\Inetpub\wwwroot\dotnetspiderencryption\publickey.xml");
		Dim reader As New StreamReader(path & "/publickey.xml")
		Dim publicOnlyKeyXML As String = reader.ReadToEnd()
		rsa.FromXmlString(publicOnlyKeyXML)
		reader.Close()
		'read plaintext, encrypt it to ciphertext	
		Dim plainbytes As Byte() = System.Text.Encoding.UTF8.GetBytes(data2Encrypt)
		Dim cipherbytes As Byte() = rsa.Encrypt(plainbytes, False)
		Return Convert.ToBase64String(cipherbytes)
	End Function
	Public Shared Sub AssignNewKey(path As String)
		AssignParameter()
		'provide public and private RSA params	
		Dim writer As New StreamWriter(path & "/privatekey.xml")
		Dim publicPrivateKeyXML As String = rsa.ToXmlString(True)
		writer.Write(publicPrivateKeyXML)
		writer.Close()
		'provide public only RSA params	
		writer = New StreamWriter(path & "/publickey.xml")
		Dim publicOnlyKeyXML As String = rsa.ToXmlString(False)
		writer.Write(publicOnlyKeyXML)
		writer.Close()
	End Sub
	Public Shared Function DecryptData(data2Decrypt As String, path As String) As String
		AssignParameter()
		Dim getpassword As Byte() = Convert.FromBase64String(data2Decrypt)
		Dim reader As New StreamReader(path & "/privatekey.xml")
		Dim publicPrivateKeyXML As String = reader.ReadToEnd()
		rsa.FromXmlString(publicPrivateKeyXML)
		reader.Close()
		'read ciphertext, decrypt it to plaintext	
		Dim plain As Byte() = rsa.Decrypt(getpassword, False)
		Return System.Text.Encoding.UTF8.GetString(plain)
	End Function

password encryption in asp.net

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