Encrypt and decrypt the password in asp.net using c#

Question

Step 1:-  Add the below Namespaces

using System.Security.Cryptography;
using System.IO;

Step 2:- paste the code inside the Partial Class 

    public static byte[] KEY_64 = { 42, 16, 93, 156, 78, 4, 218, 32 };
    public static byte[] IV_64 = { 55, 103, 246, 79, 36, 99, 167, 3 };

Step 3:- Code for Encrypt the String Value

public static string Encryption(string value)
    {
        //byte[] KEY_64 = { 42, 16, 93, 156, 78, 4, 218, 32 };
        //byte[] IV_64 = { 55, 103, 246, 79, 36, 99, 167, 3 };
        if (value != "")
        {
            DESCryptoServiceProvider CryptoProvidor = new DESCryptoServiceProvider();
            MemoryStream ms = new MemoryStream();
            CryptoStream cs = new CryptoStream(ms, CryptoProvidor.CreateEncryptor(KEY_64, IV_64), CryptoStreamMode.Write);
            StreamWriter sw = new StreamWriter(cs);
            sw.Write(value);
            sw.Flush();
            cs.FlushFinalBlock();
            ms.Flush();
            return Convert.ToBase64String(ms.GetBuffer(), 0, Convert.ToInt32(ms.Length));
        }
        return string.Empty;
    }

Step 4 :- Code for Decrypt the Encrypt value

Step 5:-

  public static string Decryption(string value)
  {
      byte[] KEY_64 = { 42, 16, 93, 156, 78, 4, 218, 32 };
      byte[] IV_64 = { 55, 103, 246, 79, 36, 99, 167, 3 };
      if (value != "")
      {
          DESCryptoServiceProvider CryptoProvidor = new DESCryptoServiceProvider();
          Byte[] buf = Convert.FromBase64String(value);
          MemoryStream ms = new MemoryStream(buf);
          CryptoStream cs = new CryptoStream(ms, CryptoProvidor.CreateDecryptor(KEY_64, IV_64), CryptoStreamMode.Read);
          StreamReader sr = new StreamReader(cs);
          return sr.ReadToEnd();
      }
      return string.Empty;
  }

 

Answer 1

Hi,

Unclear. What is the question or issue you have ? Else please use a "discussion" rather than a "question"...

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Please always mark whatever response solved your issue so that the thread is properly marked as "Answered".

Answer 2

http://chandradev819.wordpress.com/2011/04/11/how-to-encrypt-and-decrypt-password-in-asp-net-using-c/

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thanks and regard love4csharp