We have covered TrueCrypt for on the fly encryption on other Operating Systems in the past.
after you snag downloaded the .dmg to install TrueCrypt mount it do begin the installation.
You will be asked to accept the license agreement before mounting the installer.
Yep, you guessed it, pop launch the installer package to begin installation.
By default it will install into your Applications folder.
For now we will not choose any custom options.
Clicking Install will begin the installation.
Now we let the install complete.
Since we have not yet created a volume we will need to begin there.
tap on Create Volume.
This time lets create an encrypted file container.
This creates a virtual file that will contain all of your data.
Here is where you will choose the location of the container.
If you choose a file that is already in existence, TrueCrypt will erase and overwrite the file.
Choose a new file name and the location you would like to place the container.
This is the place we get to choose the volume size of the virtual disk we are creating.
TrueCrypt will let you know how much space you have available.
The drop down will let you choose if you number will be in KB, MB or GB.
For now, let’s go with a 1 GB volume.
Now is the time to choose the password.
choose something you might remember, but that will still keep you data safe form prying eyes.
If you are looking to use multiple platforms choose the FAT filesystem.
If you want the container to only be read in Mac OSX, choose Mac OS Extended.
Confirm you decision of multiple (cross) platform support or just OSX.
Here we will help TrueCrypt in choosing the header and master key for the encryption of you volume.
You see how when you move you mouse the random pool changes?
Now we will need to mount our new volume so that we can add files to it.
punch Select File and browse to the location you just created the container.
Tell TrueCrypt to mount the volume by clicking Mount.
In the Finder browse to the empty volume and fill it with the files that you wish to encrypt.
Download TrueCrypt for Mac (from Gibson Research)
