John Blackbourn

If you publish many password protected posts (or even if you don’t), you may end up using the same password for each one. With this plugin you can define a global password from your ‘Settings -> Global Post Password’ menu, and switch password protection on or off from the writing screen with just one click. Whenever you change the global password, all password protected posts are automatically updated with the new password.
Now whenever you write or edit a post or page you’ll be able to switch password protection on or off with one click, instead of having to manually type in a password each time. You can change the global password whenever you like from the ‘Settings -> Global Post Password’ menu.
Note that this plugin does not automatically enable password protection on every post. It allows you to use a global password for every post that you choose to password protect.
Please note that this plugin is no longer actively maintained. The global post password setting does not work with the block-based editor in WordPress and it’s unlikely that I’ll add support for it unless someone else volunteers to develop it. It does work with the “Classic” editor and with versions of WordPress prior to 5.0.

Global Post Password

Globally set a password for all password protected posts and pages.

Enrico Rossomando

Whenever you try to login into your website, you can use this plugin to trasmit your password encrypted. The encryption process is done by the Chap protocol; this is particularly useful when you can’t use ssl or other kinds of secure protocols. By activating the ChapSecureLogin plugin, the only information transmitted unencrypted is the username; password is hided with a random number (nonce) generated by the session – and opportunely transformed by the SHA-256 algorithm. 
In the first login there will be an error, but don’t worry is only a tecnical error. Indeed in the next login’s operation, if the values are correct, there will not be errors, but you give mind because the password will sended in unencrypted way. 
If you want more details about this algorithm, check <a href="http://www.devarticles.com/c/a/JavaScript/Building-a-CHAP-Login-System-An-ObjectOriented-Approach/" rel="nofollow ugc">“Building a CHAP Login System”</a>. 
This is a zero-configuration plugin.
Enrico Rossomando (redsend) this is my blog about programming, gaming and startup > <a href="https://www.mrred.it/" title="Blog about programming, gaming and startup" rel="nofollow ugc">https://www.mrred.it</a>

Chap Secure Password Login

Do not show password, during login, on an insecure channel (without SSL). Use a SHA-256 hash algorithm.

Global Post Password vs Chap Secure Password Login