Question

I try to create my own linux bash script that calls truecrypt for mounting. As option a need to set the password for the truecrypt file. I can do this inside the bash script but if someone open it, they can see the password. The script will later run automatically.

My question: Is there some safe way to hide/encrypt the password?

Example:

truecrypt --mount --password="testing" /home/username/test.tc /home/username/mount/

Thanks for any help!

Answer 1

Use SHC. It encrypts shell scripts using RC4 and makes an executable binary out of the shell script which you can run.

Download SHC(http://www.datsi.fi.upm.es/~frosal/) and install it.

Create a shell script with in “truecrypt –mount –password=”testing” /home/username/test.tc /home/username/mount/” andsave it as “yourfilename.sh”.

Now, run the command :

shc -f yourfilename.sh

The switch “-f” specifies the source script to encrypt. The above command will create two files: yourfilename.sh.x.c and yourfilename.sh.x.

The program “shc” creates C source code out of your shell script then encrypts it (yourfilename.sh.x.c). The encrypted shell script is: yourfilename.sh.x. Run that binary and it executes your commands:

./script.sh.x