Added cipher.

First example of article linked to one app.

README.md

@@ -15,7 +15,7 @@ to build the latest version of ``README.md``.
 
 # Summary
 
-To date, **168** apps/tools covered, divided in **31** categories; **8** related sites reviewed and listed.
+To date, **169** apps/tools covered, divided in **31** categories; **8** related sites reviewed and listed.
 
 # Index
 
@@ -533,6 +533,10 @@ Spreadsheet Calculator Improvised -- An ncurses spreadsheet program for terminal
 
 ## <a name="security"></a>Security and encryption
 
+#### [cipher](https://github.com/ash-shell/cipher)
+
+An Ash module that makes it easy to perform aes-256-cbc encryption for files and directories. 
+
 #### [hashcat](https://hashcat.net/hashcat/)
 
 A robust and efficient password cracking tool that can help you recover lost passwords, audit password security, benchmark, or just figure out what data is stored in a hash. 

cli-apps.yaml

@@ -510,6 +510,17 @@ apps:
                 using one or more computers; it can split the input
                 and pipe it into commands in parallel.
     security:
+        -
+            name: cipher
+            url: https://github.com/ash-shell/cipher
+            description: |
+                An Ash module that makes it easy to perform aes-256-cbc
+                encryption for files and directories.
+            articles:
+                -
+                    title: Linux-how-to by Alain Francois (posted June 27, 2017)
+                    url: https://linoxide.com/linux-how-to/cipher-command-line-tool-encrypt-decrypt-files-directories/
+                    date: 2017-07-09
         -
             name: hashcat
             url: https://hashcat.net/hashcat/