andreyk

The plugin increases security of a site in case it has no SSL certificate, 
useful for owners of small sites who want to secure their passwords and 
other posted data but don’t want to buy SSL certificate for each domain 
and subdomain: it protects from sniffering the most important data such as 
passwords when they are being sent from forms of your site to the server.
When the form served by the plugin is submitted all input data are being 
joined into a string, then this string is being encrypted with AES algorythm 
by disposable key and only encrypred string will be sent.
A browser encrypts the disposable key in javascript by the RSA public key 
and sends it to the server; then the server decrypts it with the RSA private 
key and then use it to decrypt the posted data with AES.
Translations included: Ukrainian, Russian, German and Brazilian Portuguese.
I just adapted usage in WordPress the jCryption jQuery plugin, v. 3.1.0. 
Please check www.jcryption.org to learn how jCryption works.

WP jCryption Security

Prevents forms data against sniffing network traffic through encryption provided by jCryption javascript library.

Brandon Hubbard

Hubbard Labs

Fernet Encryption is a plugin that can be used to encrypt and decrypt data in WordPress using fernet.
Development was originally sponsered by Access Networks.
<h3>Setup your Key</h3>
To setup your key, you need to add the following line to your wp-config file.
<pre><code>`
</code></pre>
define( ‘FERNET_KEY’, ‘YOUR_FERNET_KEY’ ); 
 `
If you choose not to setup your key, you will need to save a copy of the one provided upon activation of the plugin.
IMPORTANT: Changing your WordPress salts will invalidate the default Fernet key provided.
<h3>How to Use</h3>
To encrypt data simply use <code>$token = fernet_encrypt( 'YOUR MESSAGE' )</code> in your code.
To decrypt the data simply use <code>fernet_decrypt( $token )</code> in your code.
You can use the following shortcode to encrypt:
<pre><code>[fernet-encrypt]YOUR MESSAGE[/fernet-encrypt]
</code></pre>
You can use the following shortcode to decrypt:
<pre><code>[fernet-decrypt]YOUR-FERNET-TOKEN[/fernet-decrypt]
</code></pre>
We have also added useful helper functions:
<ul>
<li>fernet_get_post_meta</li>
<li>fernet_add_post_meta</li>
<li>fernet_update_post_meta</li>
<li>fernet_get_user_meta</li>
<li>fernet_add_user_meta</li>
<li>fernet_update_user_meta</li>
<li>fernet_add_option</li>
<li>fernet_get_option</li>
<li>fernet_update_option</li>
</ul>
<h3>Credit</h3>
<ul>
<li>Illustrations provided by undraw.co</li>
<li>Fernent PHP modified from Kelvin Mo – Fernet-PHP</li>
</ul>

Fernet Encryption

Fernet Encryption is a plugin that can be used to encrypt and decrypt data in WordPress using fernet.

WP jCryption Security vs Fernet Encryption