21 Ekim 2016 Cuma

c# CAPTCHA solving

c# capta kırma işlemleri için

https://github.com/skotz/captcha-breaking-library

c# ile php arasında şifreli iletişim

Encryption
$iv_to_pass_to_decryption = '';
function encrypt($text, $key)
{
    $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_CBC), MCRYPT_RAND); 
    $iv_to_pass_to_decryption = base64_encode($iv);
    return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_CBC, $iv); 
}
Decryption
function decrypt($text, $key, $iv)
{ 
    $text = base64_decode($text);
    $iv = base64_decode($iv);
    return mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_CBC, $iv);
}
C#
Encryption
iv_to_pass_to_decryption = "";
public string encrypt(string text, string key)
{
    byte[] _encdata;
    MemoryStream ms = new MemoryStream();
    RijndaelManaged aes = new RijndaelManaged();
    aes.KeySize = 256;
    aes.BlockSize = 256;
    aes.Padding = PaddingMode.Zeros;
    aes.Mode = CipherMode.CBC;
    aes.GenerateIV();
    iv_to_pass_to_decryption = Convert.ToBase64String(aes.IV);
    ICryptoTransform encryptor = aes.CreateEncryptor(Encoding.Default.GetBytes(key), aes.IV);
    byte[] _text = Encoding.Default.GetBytes(text);
 
    CryptoStream cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write);
    cs.Write(_text, 0, _text.Length);
    cs.FlushFinalBlock();
 
    _encdata = ms.ToArray();
    ms.Close();
    cs.Close();
 
    return Convert.ToBase64String(_encdata);
}
Decryption
public string decrypt(string text, string key, string iv)
{
    byte[] _data;
    int i = 0;
    MemoryStream ms = new MemoryStream(Convert.FromBase64String(text));
    RijndaelManaged aes = new RijndaelManaged();
    aes.KeySize = 256;
    aes.BlockSize = 256;
    aes.Padding = PaddingMode.Zeros;
    aes.Mode = CipherMode.CBC;
    ICryptoTransform decryptor = aes.CreateDecryptor(
            Encoding.Default.GetBytes(key), Convert.FromBase64String(iv));
    CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
    _data = new byte[ms.Length];
    i = cs.Read(_data, 0, _data.Length);
    return Encoding.Default.GetString(_data, 0, i);
}
Tip!

c# ile php arasında iletisim

.
C#—-> Send Data —-> PHP Page —-> Processing Data —-> C# Get Information.
Let me Show you the code
Usage Example , C# Code:
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using System;
 
class Program
{
    static void Main(string[] args)
    {
        string Data = Web.GetPost("http://www.smart-arab.com/example.php", "UserName", "Me", "Password", "123");
        Console.WriteLine(Data);
    }
}
PHP Code:
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<!--?PHP
  
if (isset($_POST['UserName'])) {
    $UserName = $_POST['UserName'];
} else {
    $UserName = null;
}
  
if (isset($_POST['Password'])) {
    $Password = $_POST['Password'];
} else {
    $Password = null;
}
  
  
echo $UserName . " Is And Password Is " . $Password
  
?-->
Please remove the comment from the PHP code before using it.
C# Class : ( You don’t need to go through it deeply, just add it to your Project as a Class file )
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using System;
using System.IO;
using System.Net;
using System.Text;
using System.Windows.Forms;
 
class Web
{
    public static string GetPost(string Url, params string[] postdata)
    {
        string result = string.Empty;
        string data = string.Empty;
 
        System.Text.ASCIIEncoding ascii = new ASCIIEncoding();
 
        if (postdata.Length % 2 != 0)
        {
            MessageBox.Show("Parameters must be even , \"user\" , \"value\" , ... etc", Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
            return string.Empty;
        }
 
        for (int i = 0; i < postdata.Length; i += 2)
        {
            data += string.Format("&{0}={1}", postdata[i], postdata[i + 1]);
        }
 
        data = data.Remove(0, 1);
 
        byte[] bytesarr = ascii.GetBytes(data);
        try
        {
            WebRequest request = WebRequest.Create(Url);
 
            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = bytesarr.Length;
 
            System.IO.Stream streamwriter = request.GetRequestStream();
            streamwriter.Write(bytesarr, 0, bytesarr.Length);
            streamwriter.Close();
 
            WebResponse response = request.GetResponse();
            streamwriter = response.GetResponseStream();
 
            System.IO.StreamReader streamread = new System.IO.StreamReader(streamwriter);
            result = streamread.ReadToEnd();
            streamread.Close();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
        return result;
    }
}
Happy Posting :)
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