Code to encrypt the Password or any string

hanusoftware's Avatar author of Code to encrypt the Password or any string
This is an article on Code to encrypt the Password or any string in ASP.NET.
Code: CSharp
/// <summary>
/// This method retrieve the string to encrypt from the Presentation Layer
/// And return the Encrypted String
/// </summary>
/// <param name="str">
/// <returns>
public string encryptPassword(string strText)
{
    return Encrypt(strText, "&%#@?,:*");
}

/// <summary>
/// This method retrieve the encrypted string to decrypt from the Presentation Layer
/// And return the decrypted string
/// </summary>
/// <param name="str">
/// <returns>
public string decryptPassword(string str)
{
    return Decrypt(str, "&%#@?,:*");
}

/// <summary>
/// This method has been used to get the Encrypetd string for the
/// passed string
/// </summary>
/// <param name="strText">
/// <param name="strEncrypt">
/// <returns>
private string Encrypt(string strText, string strEncrypt)
{
    byte[] byKey = new byte[20];
    byte[] dv ={ 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
    try
    {
        byKey = System.Text.Encoding.UTF8.GetBytes(strEncrypt.Substring(0, 8));
        DESCryptoServiceProvider des = new DESCryptoServiceProvider();
        byte[] inputArray = System.Text.Encoding.UTF8.GetBytes(strText);
        MemoryStream ms = new MemoryStream();
        CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(byKey, dv), CryptoStreamMode.Write);

        cs.Write(inputArray, 0, inputArray.Length);
        cs.FlushFinalBlock();

        return Convert.ToBase64String(ms.ToArray());
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

/// <summary>
/// This method has been used to Decrypt the Encrypted String
/// </summary>
/// <param name="strText">
/// <param name="strEncrypt">
/// <returns>
private string Decrypt(string strText, string strEncrypt)
{
    byte[] bKey = new byte[20];
    byte[] IV = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };

    try
    {
        bKey = System.Text.Encoding.UTF8.GetBytes(strEncrypt.Substring(0, 8));
        DESCryptoServiceProvider des = new DESCryptoServiceProvider();
        Byte[] inputByteArray = inputByteArray = Convert.FromBase64String(strText);
        MemoryStream ms = new MemoryStream();
        CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(bKey, 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 ex)
    {
        throw ex;
    }

}