介绍一种给博客文章加密的方法。
很多时候当我们写了一篇博客，但并不想所有人能够访问它。对于WordPress这很容易做到，但是对于hexo，由于是静态网页，并不能做到完全的加密。
在GitHub上发现了有个人做了一个加密的插件，还挺好用，推荐给大家。
安装
在你的hexo根目录的package.json文件夹中添加：
“hexo-blog-encrypt”: “2.0.*”
然后在命令行中输入：
npm install
这样这个插件就安装好了。
找到根目录下的_config.yml文件，添加如下：
# Security
##
encrypt:
enable: true这样就可以使用插件了。
使用
在你要加密的文章头部写入password，例如：
扫描二维码关注公众号，回复：
2821100 查看本文章
---
title: Hello World
date: 2016-03-30 21:18:02
password: abc123
abstract: Welcome to my blog, enter password to read.
message: Welcome to my blog, enter password to read.
---这样就可以需要输入密码访问了。
Bugs
对于
hexo-blog-encrypt2.0之前的版本，无法触发渲染mathjax的函数，需要进行升级。如果想对TOC进行加密，以
next主题为例，将next/layout/_macro/sidebar.swig的文件替换为：`{% macro render(is_post) %} <div class="sidebar-toggle"> <div class="sidebar-toggle-line-wrap"> <span class="sidebar-toggle-line sidebar-toggle-line-first"></span> <span class="sidebar-toggle-line sidebar-toggle-line-middle"></span> <span class="sidebar-toggle-line sidebar-toggle-line-last"></span> </div> </div> <aside id="sidebar" class="sidebar"> <div class="sidebar-inner"> {% set display_toc = is_post and theme.toc.enable %} {% if page.encrypt == true %} {% if display_toc and toc(page.origin).length > 1 %} <ul class="sidebar-nav motion-element"> <li class="sidebar-nav-toc sidebar-nav-active" data-target="post-toc-wrap" > {{ __('sidebar.toc') }} </li> <li class="sidebar-nav-overview" data-target="site-overview"> {{ __('sidebar.overview') }} </li> </ul> {% endif %} {% else %} {% if display_toc and toc(page.content).length > 1 %} <ul class="sidebar-nav motion-element"> <li class="sidebar-nav-toc sidebar-nav-active" data-target="post-toc-wrap" > {{ __('sidebar.toc') }} </li> <li class="sidebar-nav-overview" data-target="site-overview"> {{ __('sidebar.overview') }} </li> </ul> {% endif %} {% endif %} <section class="site-overview sidebar-panel{% if not display_toc or toc(page.content).length <= 1 %} sidebar-panel-active{% endif %}"> <div class="site-author motion-element" itemprop="author" itemscope itemtype="http://schema.org/Person"> <img class="site-author-image" itemprop="image" src="{{ url_for( theme.avatar | default(theme.images + '/avatar.gif') ) }}" alt="{{ theme.author }}" /> <p class="site-author-name" itemprop="name">{{ theme.author }}</p> {% if theme.seo %} <p class="site-description motion-element" itemprop="description">{{ theme.signature }}</p> {% else %} <p class="site-description motion-element" itemprop="description">{{ theme.description }}</p> {% endif %} </div> <nav class="site-state motion-element"> {% if config.archive_dir != '/' %} <div class="site-state-item site-state-posts"> <a href="{{ url_for(theme.menu.archives) }}"> <span class="site-state-item-count">{{ site.posts.length }}</span> <span class="site-state-item-name">{{ __('state.posts') }}</span> </a> </div> {% endif %} {% if site.categories.length > 0 %} {% set categoriesPageQuery = site.pages.find({type: 'categories'}, {lean: true}) %} {% set hasCategoriesPage = categoriesPageQuery.length > 0 %} <div class="site-state-item site-state-categories"> {% if hasCategoriesPage %}<a href="{{ url_for(categoriesPageQuery[0].path) }}">{% endif %} <span class="site-state-item-count">{{ site.categories.length }}</span> <span class="site-state-item-name">{{ __('state.categories') }}</span> {% if hasCategoriesPage %}</a>{% endif %} </div> {% endif %} {% if site.tags.length > 0 %} {% set tagsPageQuery = site.pages.find({type: 'tags'}, {lean: true}) %} {% set hasTagsPage = tagsPageQuery.length > 0 %} <div class="site-state-item site-state-tags"> {% if hasTagsPage %}<a href="{{ url_for(tagsPageQuery[0].path) }}">{% endif %} <span class="site-state-item-count">{{ site.tags.length }}</span> <span class="site-state-item-name">{{ __('state.tags') }}</span> {% if hasTagsPage %}</a>{% endif %} </div> {% endif %} </nav> {% if theme.rss %} <div class="feed-link motion-element"> <a href="{{ url_for(theme.rss) }}" rel="alternate"> <i class="fa fa-rss"></i> RSS </a> </div> {% endif %} <div class="links-of-author motion-element"> {% if theme.social %} {% for name, link in theme.social %} <span class="links-of-author-item"> <a href="{{ link }}" target="_blank" title="{{ name }}"> {% if theme.social_icons.enable %} <i class="fa fa-fw fa-{{ theme.social_icons[name] | default('globe') | lower }}"></i> {% endif %} {{ name }} </a> </span> {% endfor %} {% endif %} </div> {% set cc = {'by': 1, 'by-nc': 1, 'by-nc-nd': 1, 'by-nc-sa': 1, 'by-nd': 1, 'by-sa': 1, 'zero': 1} %} {% if theme.creative_commons in cc %} <div class="cc-license motion-element" itemprop="license"> <a href="https://creativecommons.org/{% if theme.creative_commons === 'zero' %}publicdomain/zero/1.0{% else %}licenses/{{ theme.creative_commons }}/4.0{% endif %}/" class="cc-opacity" target="_blank"> <img src="{{ url_for(theme.images) }}/cc-{{ theme.creative_commons }}.svg" alt="Creative Commons" /> </a> </div> {% endif %} {# Blogroll #} {% if theme.links %} <div class="links-of-blogroll motion-element {{ "links-of-blogroll-" + theme.links_layout | default('inline') }}"> <div class="links-of-blogroll-title"> <i class="fa fa-fw fa-{{ theme.links_icon | default('globe') | lower }}"></i> {{ theme.links_title }} </div> <ul class="links-of-blogroll-list"> {% for name, link in theme.links %} <li class="links-of-blogroll-item"> <a href="{{ link }}" title="{{ name }}" target="_blank">{{ name }}</a> </li> {% endfor %} </ul> </div> {% endif %} {% include '../_custom/sidebar.swig' %} </section> {% if page.encrypt == true %} {% if display_toc and toc(page.origin).length > 1 %} <!--noindex--> <section class="post-toc-wrap motion-element sidebar-panel sidebar-panel-active"> <div class="post-toc"> {% if page.toc_number === undefined %} {% set toc = toc(page.origin, { "class": "nav", list_number: theme.toc.number }) %} {% else %} {% set toc = toc(page.origin, { "class": "nav", list_number: page.toc_number }) %} {% endif %} {% if toc.length <= 1 %} <p class="post-toc-empty">{{ __('post.toc_empty') }}</p> {% else %} <div class="post-toc-content">{{ toc }}</div> {% endif %} </div> </section> <!--/noindex--> {% endif %} {% else %} {% if display_toc and toc(page.content).length > 1 %} <!--noindex--> <section class="post-toc-wrap motion-element sidebar-panel sidebar-panel-active"> <div class="post-toc"> {% if page.toc_number === undefined %} {% set toc = toc(page.content, { "class": "nav", list_number: theme.toc.number }) %} {% else %} {% set toc = toc(page.content, { "class": "nav", list_number: page.toc_number }) %} {% endif %} {% if toc.length <= 1 %} <p class="post-toc-empty">{{ __('post.toc_empty') }}</p> {% else %} <div class="post-toc-content">{{ toc }}</div> {% endif %} </div> </section> <!--/noindex--> {% endif %} {% endif %} {% if theme.sidebar.b2t %} <div class="back-to-top"> <i class="fa fa-arrow-up"></i> {% if theme.sidebar.scrollpercent %} <span id="scrollpercent"><span>0</span>%</span> {% endif %} </div> {% endif %} </div> </aside> {% endmacro %}