TrueCrypt for Macintosh
Files are only encrypted when they are inside the container you created using TrueCrypt. If you remove the files from the container, they are no longer encrypted. Therefore, if you want to email encrypted files, you must email the entire container (e.g., attach mycontainer1, which will email all the files within that encrypted container).
Also, in order for files to be opened on another computer (i.e., email recipient’s computer) the recipient must have:
- TrueCrypt installed on their computer and
- The password.
To use TrueCrypt:
- Launch TrueCrypt from Parted Magic, or download TrueCrypt and select the correct download for your operating system (OS).
- Launch TrueCrypt.app from the Applications folder:
- You should see the TrueCrypt dialogue box that looks similar to the following:
- Click Create Volume.
- The TrueCrypt Volume Creation Wizard should launch and look similar to the following:
- Click Create an encrypted file container and then click Next >.
- For Volume Type, select the Standard TrueCrypt volume radio button and click Next >.
- For Volume Location, click Select File...
- Create a new file by typing a filename in the Save As field.
NOTE: TrueCrypt cannot be applied to an existing file
If you select an existing file or folder in this step, it will be overwritten by the new volume, and the original file will be lost. Create a new file by typing a new filename in this field.
- From the Where menu, click the location where you would like to put this container (e.g., Desktop, Documents, another local folder, or an external device such as a USB.)
- Click Save.
- In the Encryption Options window, accept the defaults by clicking Next >.
- Select the size of your encrypted container (e.g., 1 MB). (NOTE: TrueCrypt will tell you how much space is available on your device--do not use an amount larger than the space available. Try to make your container 10% larger than the file you plan to store inside.)
- Type a password in the Password and Confirm Password fields using TrueCrypt’s password recommendations. Select the Display Password check box to ensure the text in the Password and Confirm Password fields are the same.
- Click Next >.
- For Format Options, select FAT as the Filesystem type and click Next >. (This will insure maximum compatibility across all computer platforms.) If you want the file to grow only as you add files to it, click the Dynamic option.
- For Volume Format, move your mouse around randomly within the window to increase the strength of the encryption key. When you are done, click Format.
- Allow up to several seconds for the volume to format.
- You will see a completion message after the volume has been successfully created. Click OK.
- Click Exit to return to the TrueCrypt dialogue box from (from step 3 above).
- In the TrueCrypt dialogue box, select a Slot number and click Select File...
- Click your container from the Select a TrueCrypt Volume dialogue box and then click Open.
- Click Mount.
- Type the password you created in step 14--select Display password if necessary--and click OK.
- Your encrypted volume (encrypted container) should now be listed in the slot you selected.
Do not forget the password you create in this step, or you will not be able to access anything placed in this encrypted container.
Choose any empty slot number.
This mounts the container like an external device. The name of the mount is under the Mount Directory column. In this case, the container is mounted as /NO NAME