Step 5: The size dialog is pretty simple since you have a text field where you can enter the amount that you want to assign and as you can see when you click on the MB (which stands for MegaByte), you can choose really anything, from sectors (I would stay away from that option unless you KNOW what you are doing), over KB (Kilobyte), MB (Megabyte, 1024 KB) GB (Gigabyte, 1024MB)  and even TB (Terrabyte, 1024G) even though I am not sure if anyone has created a multi-terrabyte encrypted volume yet. Once you have the size you want (6G in our case) click OK and you are returned to the previous screen.

Step 6: Next step is encryption, click on the drop down menu and select AES128. Now a few people think AES 128 is too little since AES 256 is available in some software. That is correct however to put it into perspective assuming that one could build a machine that could recover a standard DES key in a second (like try more than 72 quadrillion keys per second), then it would take that machine approximately 149 thousand-billion (149 trillion) years to crack a 128-bit AES key. To put that into perspective, the universe is believed to be less than 20 billion years old. So, back to our little box: select AES-128.

Step 7: The format field should stay in read/write mode so that you can add and remove files from that volume. After that click on CREATE and watch it go.

Step 8: As soon as the creation stage of the volume starts you are prompted to enter a password. REMEMBER IT!!!! otherwise your data in that volume later on is lost.

The image will now be created in its full size so depending what you selected it might take a while. 6G took about 2.5 minutes to create on Boxie.

Step 9: Once it is done you can close the Disk Utility. Now look in the folder where you created the image and you will see , in our case at least, a file called encrypted-disk.dmg . Double click it and it will ask you for your password. Once you entered it the volume will appear in your finder as a normal drive that you can access.

Step 10: Copy the files you want onto the volume. Unmount it and you have just the file again . This can be copied anywhere (if your size is decent enough :)) and the other person can, if they have the password securely access the data within the volume when they mount it.

I hope this helped at least some people. If you have an idea on how to script this please let me know I would love to hear about it. Also if you found this useful let me know what you are using your volumes for. I am intrigued

//Flosse

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