thnx buddy ya i had that option but i have to handle 8 diff forms so implementing that i find quite tedious if any method that i can do like frm htacess, robots may b not coz i am not so much familiar to them ...................BIPIN> Date: Sun, 11 May 2008 10:53:06 -0700> Subject: [FOSSNepal] Re: security> From: [EMAIL PROTECTED]> To: [email protected]> > > Very easy,> use any captcha service providers or any other else created on your> own using GDLibrary in PHP> > One of the most famous Captcha service providers is recaptcha.net> http://recaptcha.net/plugins/php/> > And some more are> www.PHPCaptcha.org> www.captchacreator.com> > But I will suggest you a very simple one here. You are left to discuss> on security issues in this type.> Steps:> a) First select a random number/character/symbols, etc whatever you> think you should use in you captcha> b) Use a session variable to store the sequence you have generated> c) Use GDLibrary extension of PHP to generate an image out of the text> you have generated> d) Display the image somewhere and read a text input> e) When the form is submitted, match the input with the session> variable you had stored in step 'b'.> > This is a simple method how to stop spams.> > However you can do another trick too, if you do not have a proper> knowledge in GD> a) Randomize number. b) have 0-9 digits' images. c)Break the> characters into digits and display the image sequences to build an> image of number. But make sure that the names of images are some> encrypted strings so that pattern of the next digit cannot be guessed.> Otherwise robots just break the code and input what you are> expecting.> > For more you can continue the discussion> > Thanks> > _________________________________________________________________ Get Free (PRODUCT) RED™ Emoticons, Winks and Display Pics. http://joinred.spaces.live.com?ocid=TXT_HMTG_prodredemoticons_052008 --~--~---------~--~----~------------~-------~--~----~ FOSS Nepal mailing list: [email protected] http://groups.google.com/group/foss-nepal To unsubscribe, e-mail: [EMAIL PROTECTED]
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