How to decrypt the password from Membership in C#?

Here is a solution that you can use for the description of password.

///
/// This function is used for the decription of the password.
///
///
///
public static string Decrypt(string stringToDecrypt)
{
MemoryStream ms = null;
byte[] inputByteArray = new byte[stringToDecrypt.Length + 1];
try
{
byte[] key = { };
string sEncryptionKey = "!#$a54?3";
byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };
key = Encoding.UTF8.GetBytes(sEncryptionKey);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
inputByteArray = Convert.FromBase64String(stringToDecrypt);
ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(key, IV), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
System.Text.Encoding encoding = System.Text.Encoding.UTF8;
return encoding.GetString(ms.ToArray());
}
catch (Exception e)
{
return e.Message;
}
finally
{
ms = null;
}
}

For encription use the following:

//
/// This function is used for the encription of the password.
///
/// String to encript
///
public static string Encrypt(string stringToEncrypt)
{
MemoryStream ms = null;
try
{
byte[] key = { };
string sEncryptionKey = "!#$a54?3";
byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };
key = Encoding.UTF8.GetBytes(sEncryptionKey);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.UTF8.GetBytes(stringToEncrypt);
ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return Convert.ToBase64String(ms.ToArray());
}
catch (Exception e)
{
return e.Message;
}
finally
{
ms = null;
}
}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Rajkiran Swain9y ago
Here is a solution that you can use for the description of password.
///


       /// This function is  used for the decription of the password.

       ///

       ///

       ///

        public static string Decrypt(string stringToDecrypt)

        {

            MemoryStream ms = null;

            byte[] inputByteArray = new byte[stringToDecrypt.Length + 1];

            try

            {

                byte[] key = { };

                string sEncryptionKey = "!#$a54?3";

                byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };



                key = Encoding.UTF8.GetBytes(sEncryptionKey);

                DESCryptoServiceProvider des = new DESCryptoServiceProvider();

                inputByteArray = Convert.FromBase64String(stringToDecrypt);

                ms = new MemoryStream();

                CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(key, IV), CryptoStreamMode.Write);

                cs.Write(inputByteArray, 0, inputByteArray.Length);

                cs.FlushFinalBlock();

                System.Text.Encoding encoding = System.Text.Encoding.UTF8;

                return encoding.GetString(ms.ToArray());

            }

            catch (Exception e)

            {

                return e.Message;

            }

            finally

            {

                ms = null;

            }

        }

For encription use the following:
//


        /// This function is  used for the encription of the password.

        ///

        /// String to encript

        ///

        public static string Encrypt(string stringToEncrypt)

        {

            MemoryStream ms = null;

            try

            {

                byte[] key = { };

                string sEncryptionKey = "!#$a54?3";

                byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };

                key = Encoding.UTF8.GetBytes(sEncryptionKey);

                DESCryptoServiceProvider des = new DESCryptoServiceProvider();

                byte[] inputByteArray = Encoding.UTF8.GetBytes(stringToEncrypt);

                ms = new MemoryStream();

                CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);

                cs.Write(inputByteArray, 0, inputByteArray.Length);

                cs.FlushFinalBlock();

                return Convert.ToBase64String(ms.ToArray());

            }

            catch (Exception e)

            {

                return e.Message;

            }

            finally

            {

                ms = null;

            }

        }
Nilesh Patil9y ago
Hi,

Refer this links

https://forums.asp.net/p/1091709/1638361.aspx

https://www.codeproject.com/Questions/541962/DecryptplusPasswordplusinplusMembership