| Author: Ravi 04 Nov 2009 | Member Level: Silver | Rating:  Points: 2 |
Hello,
Please find below the methods for encrypt and decrypt.
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Security.Cryptography;
using System.Text;
using System.IO;
namespace SQLDAL
{
/// <summary>
/// Summary description for Security.
/// </summary>
public class Security
{
public Security()
{
//
// TODO: Add constructor logic here
//
}
public static string EncryptText(string strText)
{
return Encrypt(strText, "TwasBrilligsjdhdtEgfbVog9vesHadTeaWithAMadHatter");
}
public static string DecryptText(string strText)
{
return Decrypt(strText, "TwasBrilligsjdhdtEgfbVog9vesHadTeaWithAMadHatter");
}
private static string Encrypt(string strText, string strEncrKey)
{
byte[] byKey;
byte[] IV = {0, 52, 86, 120, 144, 171, 205, 239};
try
{
byKey = System.Text.Encoding.UTF8.GetBytes((strEncrKey.Substring(1, 8)));
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.UTF8.GetBytes(strText);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(byKey, IV), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return Convert.ToBase64String(ms.ToArray());
}
catch (Exception ex)
{
return ex.Message;
}
}
private static string Decrypt(string strText, string sDecrKey)
{
byte[] byKey;
byte[] IV = {0, 52, 86, 120, 144, 171, 205, 239};
byte[] inputByteArray = new byte[strText.Length];
try
{
byKey = System.Text.Encoding.UTF8.GetBytes( (sDecrKey.Substring(1, 8)));
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
inputByteArray = Convert.FromBase64String(strText);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(byKey, IV), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
System.Text.Encoding encoding = System.Text.ASCIIEncoding.UTF8;
return encoding.GetString(ms.ToArray());
}
catch (Exception ex)
{
return ex.Message;
}
}
}
}
Regards,
Ravi
|
| Author: Anil Kumar Pandey 04 Nov 2009 | Member Level: Diamond | Rating: Points: 2 |
check this code for the same..
http://mannpandey.blogspot.com/2009/07/code-encryption-and-decryption-using.html
Thanks & Regards
Anil Kumar Pandey
|
| Author: Deepika Haridas 04 Nov 2009 | Member Level: Diamond | Rating: Points: 2 |
Hello,
You can check resources section for this.
Thanks & Regards,
Deepika
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| Author: Nikhil Gaur 04 Nov 2009 | Member Level: Diamond | Rating: Points: 2 |
look at the following links
http://niksgaur.blogspot.com/2009/07/code-encryption-and-decryption-using.html
http://niksgaur.blogspot.com/2009/08/encryption-and-decryption-without-net.html
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http://www.dotnetspider.com/sites/637/-ecb-aspdotnet.aspx
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NIks
My Software and Web Development Experience
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