How to encode-decode URL!!

This is the excample of how to encode-decode URL,through this code you can encode-decode a URL


public class UrlEncoderDecoder

{

public UrlEncoderDecoder()

{

// http://www.infysolutions.com

// TODO: Add constructor logic here

//

}

public static string TamperProofStringEncode(string value, string key)

{

System.Security.Cryptography.MACTripleDES mac3des = new System.Security.Cryptography.MACTripleDES();

System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();

mac3des.Key = md5.ComputeHash(System.Text.Encoding.UTF8.GetBytes(key));

return Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(value)) + '-' + Convert.ToBase64String(mac3des.ComputeHash(System.Text.Encoding.UTF8.GetBytes(value)));

}

public static string TamperProofStringDecode(string value, string key)

{

string dataValue = "";

string calcHash = "";

string storedHash = "";

System.Security.Cryptography.MACTripleDES mac3des = new System.Security.Cryptography.MACTripleDES();

System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();

mac3des.Key = md5.ComputeHash(System.Text.Encoding.UTF8.GetBytes(key));

try

{

dataValue = System.Text.Encoding.UTF8.GetString(Convert.FromBase64String(value.Split('-')[0]));

storedHash = System.Text.Encoding.UTF8.GetString(Convert.FromBase64String(value.Split('-')[1]));

calcHash = System.Text.Encoding.UTF8.GetString(mac3des.ComputeHash(System.Text.Encoding.UTF8.GetBytes(dataValue)));

if (storedHash != calcHash)

{

throw new ArgumentException("Hash value does not match");

}

}

catch

{

throw new ArgumentException("Invalid TamperProofString");

}

return dataValue;

}

}


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Offshore Software Development

Offshore Outsourcing Software Development
1 answer Last reply
More about encode decode
  1. like doing things the hard way?

    or the easy way?

    http://uk2.php.net/urlencode

    
    <?php
    
    function urlcode()
    {
    $url = "www.tomshardware.co.uk";
    
    $url = urlencode($url);
    
    return $url;
    }
    ?>
    


    EDIT

    forgot the urldecode, silly me.

    http://uk2.php.net/manual/en/function.urldecode.php

    
    <?php
    
    $url = urlcode();
    
    $url = urldecode($url);
    
    return $url;
    ?>
    
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