Title: Hashcash
Author: pkaroukin
Published: <strong>1 julho, 2014</strong>
Last modified: 13 janeiro, 2018

---

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Este plugin **não foi testado com os 3 lançamentos principais mais recentes do WordPress**.
Ele pode não ser mais mantido ou suportado e pode ter problemas de compatibilidade
quando usado com versões mais recentes do WordPress.

![](https://s.w.org/plugins/geopattern-icon/hashcash.svg)

# Hashcash

 Por [pkaroukin](https://profiles.wordpress.org/pkaroukin/)

[Baixar](https://downloads.wordpress.org/plugin/hashcash.zip)

 * [Detalhes](https://br.wordpress.org/plugins/hashcash/#description)
 * [Avaliações](https://br.wordpress.org/plugins/hashcash/#reviews)
 *  [Instalação](https://br.wordpress.org/plugins/hashcash/#installation)
 * [Desenvolvimento](https://br.wordpress.org/plugins/hashcash/#developers)

 [Suporte](https://wordpress.org/support/plugin/hashcash/)

## Descrição

This plugin will integrate jQuery plugin Hashcash.IO (https://github.com/hashcash/
jquery.hashcash.io) to be used in combination with https://hashcash.io/ service.

Active development happens in GitHub repository – https://github.com/hashcash/wordpress-
hashcash

Please report all issues at https://github.com/hashcash/wordpress-hashcash/issues

Because of the way plugins work, problem might arrise from specific combination 
of WP version, plugins, themes.
 Therefore for the best result everytime you submit
a bug report or just seeking an advice please include following:

 * Version of WordPress you are using
 * Brand and version of Browser you are using to test it
 * List of third-party plugins and their versions activated on your website
 * What theme and version you are using

### Protect Against Web Spam

Typically various “Internet SEO Companies” try to leverage poor forum software protection
against mass submission and create many worthless posts with links to a website 
they are promoting.

Some forum and blog software implement various CAPTCHA solutions but these have 
two negative aspects:

 * They annoy your visitors.
 * They provide a fake sense of security.
 * Today it is possible to buy access to API which solves any kind of CAPTCHA for
   just $0.70 per 1000 CAPTCHA images solved by a real human being. And do you really
   think your customer will be happy to try to solve one of these ridiculous CAPTCHAs?

### Secure Against Brute Force Attacks

Many modern applications are susceptible to brute force attacks. Take a typical 
login form, for example. Hackers can compromise account security by trying every
possible password combination. They can also leverage a large network of proxy servers
to paralelize this attack. Forcing their browser to work hard makes it too expensive
and slow for hackers to perform a brute force attack.

### Based On Open Technologies

We leverage the following features:

 * Asm.js
 * HTML5
 * Web Workers

Browsers supported:

 * Google Chrome 28+
 * Mozilla Firefox 22+
 * Internet Explorer 10+
 * Opera 18+

### Fully translatable

All strings are available for translation

### Fully accessible

We follow both common sense and accessibility guidelines to make this
 widget accessible
to people with limited abilities. We make it focusable and actionable via Tab-Enter
keys, as well as we have WAI-ARIA live region which updates blind user via screen
reader about progress.

## Capturas de tela

 * [[
 * Submit button disabled. User need to unlock it before proceeding.
 * [[
 * Widget updates both visually and via WAI-ARIA to inform user about progress.
 * [[
 * Submit button unlocked.
 * [[
 * If user tries to click on submit button before unlocking, information popup will
   show up.

## Instalação

 1. Download plugin folder into /wp-content/plugins/ on your server
 2. Ative o plugin por meio do menu “Plugins” no WordPress
 3. On Hashcash plugin settings page generate new keys and save settings

## Perguntas frequentes

  Installation Instructions

 1. Download plugin folder into /wp-content/plugins/ on your server
 2. Ative o plugin por meio do menu “Plugins” no WordPress
 3. On Hashcash plugin settings page generate new keys and save settings

## Avaliações

Não há avaliações para este plugin.

## Colaboradores e desenvolvedores

“Hashcash” é um programa de código aberto. As seguintes pessoas contribuíram para
este plugin.

Colaboradores

 *   [ pkaroukin ](https://profiles.wordpress.org/pkaroukin/)

[Traduzir o “Hashcash” para seu idioma.](https://translate.wordpress.org/projects/wp-plugins/hashcash)

### Interessado no desenvolvimento?

[Navegue pelo código](https://plugins.trac.wordpress.org/browser/hashcash/), consulte
o [repositório SVN](https://plugins.svn.wordpress.org/hashcash/) ou assine o [registro de desenvolvimento](https://plugins.trac.wordpress.org/log/hashcash/)
por [RSS](https://plugins.trac.wordpress.org/log/hashcash/?limit=100&mode=stop_on_copy&format=rss).

## Meta

 *  Versão **1.0.14**
 *  Última atualização **8 anos atrás**
 *  Instalações ativas **20+**
 *  Versão do WordPress ** 3.0.0 ou superior **
 *  Testado até **4.9.29**
 *  Idioma
 * [English (US)](https://wordpress.org/plugins/hashcash/)
 * Tags
 * [hashcash](https://br.wordpress.org/plugins/tags/hashcash/)[security](https://br.wordpress.org/plugins/tags/security/)
   [spam](https://br.wordpress.org/plugins/tags/spam/)
 *  [Visualização avançada](https://br.wordpress.org/plugins/hashcash/advanced/)

## Classificações

 5 de 5 estrelas.

 *  [  5 avaliações com 5 estrelas     ](https://wordpress.org/support/plugin/hashcash/reviews/?filter=5)
 *  [  0 avaliação com 4 estrela     ](https://wordpress.org/support/plugin/hashcash/reviews/?filter=4)
 *  [  0 avaliação com 3 estrela     ](https://wordpress.org/support/plugin/hashcash/reviews/?filter=3)
 *  [  0 avaliação com 2 estrela     ](https://wordpress.org/support/plugin/hashcash/reviews/?filter=2)
 *  [  0 avaliação com 1 estrela     ](https://wordpress.org/support/plugin/hashcash/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/hashcash/reviews/#new-post)

[Ver todas avaliações](https://wordpress.org/support/plugin/hashcash/reviews/)

## Colaboradores

 *   [ pkaroukin ](https://profiles.wordpress.org/pkaroukin/)

## Suporte

Tem algo a dizer? Precisa de ajuda?

 [Ver fórum de suporte](https://wordpress.org/support/plugin/hashcash/)