captcha

I'm looking for a captcha library or component that I could use inside a Swing Gui. Do you know any ? Edit: It seems not to exist. I'll program a small one myself. Even though I don't really understand the need for captcha in Swing app, you can probably use JCaptcha http://jcaptcha.sourceforge.net/ Let me try to explain the reason @eugener tries to talk you out of a CAPTCHA: Normally a CAPTCHA is used to prevents bot registration as you already said. This is done by having the server post a problem, that the client/user has to solve. Since you are looking for a Swing lib it sounds like you

I want to implement captcha in my application, but i get this error can anybody tell me reason ?? juin 01, 2014 12:22:04 PM com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback visit GRAVE: javax.faces.FacesException: Cannot find public key for catpcha, use primefaces.PUBLIC_CAPTCHA_KEY context-param to define one See the message, you need to register for a CAPTCHA key then add the following to your web.xml <context-param> <param-name>primefaces.PUBLIC_CAPTCHA_KEY</param-name> <param-value>your-publickey</param-value> </context-param> <context-param> <param-name>primefaces

I just try to get Google Invisible ReCaptcha to work after submitting a form. My problem is, the ReCaptcha is NOT invisible, it looks like the "old" recaptcha is popping up. I don't understand why. My site-key is for invisible recaptcha. Please help me. First of all i'm loading the API: <script src='https://www.google.com/recaptcha/api.js?render=explicit&onload=onScriptLoad' async defer></script> My form looks like this: <form method="post" id="contact-form-face" class="clearfix" onsubmit="return false"> <input type="text" required name="name" value="name" onFocus="if (this.value == 'name')

I am currently using ambethia's recaptcha plugin for rails. I want to disable the message "incorrect-captcha-sol" whenever the user incorrectly enters the wrong recaptcha. How should I go about doing this? In the source file I get the following tags surrounding the error message <p class="recaptcha_error">incorrect-captcha-sol</p> The plugin sets the flash (more precisely flash[:recaptcha_error]), i.e. it won't display message automatically. Most likely you have a piece of code that displays all flash messages. Try removing it and/or excluding flash[:recaptcha_error] from being displayed.

I am using simple captcha in my JSP. Everything is OK. I want to provide a refresh button alongside of captcha to allow user to change the captcha. Captcha changes only on refreshing the complete page but I don't want to reload whole page for it. I need your suggestions on how I can implement this like using AJAX or JQuery to reload only the captcha, not whole page. javaghost <script type="text/javascript"> function reloadCaptcha(){ var d = new Date(); $("#captcha_image").attr("src", "/captcha_generator.jsp?"+d.getTime()); } </script> ... <img id="captcha_image" src="/captcha_generator.jsp"

Just to give a background for my question, I am using Vanilla Forums for a website I run. Vanilla Forums comes with baked-in support for using reCAPTCHA to authenticate new registrations on the website, which I have enabled. Recently on my forum, however, I have seen a spike in spam registrations (obvious 'spammy' usernames, same email address used, et al.) I looked into this to try to see how spambots could be getting past the reCAPTCHA verification. I know that in reCAPTCHA, one of the words is known by the system and the other isn't , so it is possible that a form submit might validate even