It is a console app I did as a course project in KPI University

You can create, save and use various ciphers made by yourself using this program. You can also use it for educational purposes with pre-made morse and caesar ciphers, which are both used in school IT lessons.

No libraries were used in this project except for those that are integrated in to Node.js (fs, for example).

First up, clone the repository via this command:

git clone https://github.com/M-Rybalko/FilesEncryptor.git

Then run these two commands in your terminal:

Opening the source folder:

cd src

Running the program:

node commands.js

First thing you need to know is that all commands are divided by levels: general level and custom level. There is a help command on each level. You start on general level. Custom level is entered automatically after using create or import commands. Exiting custom level is made by exit command.

To get acquainted with commands you might use help command, just as told in program.

If you only start using files encryptor, you might want to start creating your own cipher. create command is made for this:

As it was told before, both levels have their own help commands. Let's add our first replacer into our cipher. Usingadd command, you can replace various character sequences with others.

Now all "Hello" words will be replaced with "Goodbye"

If i don't want certain parts to appear in encrypted file, I can use omit command.

You can stack both replacers and omissions endlessly

If you made a mistake while creating your cipher, you can use delete command to correct it.

delete has different switches each responsible for deleting either a part of the cipher, or the cipher itself

if you want to see how your cipher looks like at some point of time, use show command.

You might want to save your cipher into JSON format to not lose the progress in future. save command is designed to do so. Also, you will always be remembered to save your cipher upon using exit command.

save command creates a new folder Custom ciphers with a folder inside called by the name of your cipher. In it you can find both components of your cipher in JSON format.

Now we can try encrypting some files! If you don't exit the program, the last cipher you worked on will be saved in memory, so you don't need to use import every time. In Files Encryptor folder you can see the Texts folder. Files to encrypt are stored there. Let's encrypt the "Hello world! [[[[" text.

The files are saved in Encrypted folder by set name. But you can change it to any name you want manually after encrypting.

After all things are done, you can leave the program by using exit command.

I made some tests for the program. To use them, write this command:

node tests/tests.js

It expects to return all green success messages.