TTRRUUEECCRRYYPPTT F R E E O P E N - S O U R C E O N - T H E - F L Y E N C R Y P T I O N USER’S GUIDE www.truecrypt.org Version Information TrueCrypt User’s Guide, version 7.1a Released by TrueCrypt Foundation on February 7, 2012 Legal Notices THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY. THE ENTIRE RISK AS TO THE QUALITY, CORRECTNESS, ACCURACY, OR COMPLETENESS OF THE CONTENT OF THIS DOCUMENT IS WITH YOU. THE CONTENT OF THIS DOCUMENT MAY BE INACCURATE, INCORRECT, INVALID, INCOMPLETE AND/OR MISLEADING. 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CONTENTS INTRODUCTION .............................................................................................................................. 6 BEGINNER’S TUTORIAL .............................................................................................................. 7 How to Create and Use a TrueCrypt Container ....................................................................... 7 How to Create and Use a TrueCrypt-Encrypted Partition/Device ......................................... 25 TRUECRYPT VOLUME ................................................................................................................ 26 CREATING A NEW TRUECRYPT VOLUME ........................................................................................ 26 Hash Algorithm ...................................................................................................................... 26 Encryption Algorithm ............................................................................................................ 26 Quick Format ......................................................................................................................... 27 Dynamic ................................................................................................................................. 27 Cluster Size ............................................................................................................................ 27 TrueCrypt Volumes on CDs and DVDs ................................................................................ 27 Hardware/Software RAID, Windows Dynamic Volumes ..................................................... 28 Additional Notes on Volume Creation .................................................................................. 28 FAVORITE VOLUMES ....................................................................................................................... 29 SYSTEM FAVORITE VOLUMES ......................................................................................................... 31 SYSTEM ENCRYPTION ............................................................................................................... 33 Hidden Operating System ...................................................................................................... 33 Operating Systems Supported for System Encryption ........................................................... 34 TrueCrypt Rescue Disk .......................................................................................................... 34 PLAUSIBLE DENIABILITY ......................................................................................................... 37 HIDDEN VOLUME ............................................................................................................................ 38 Protection of Hidden Volumes Against Damage ................................................................... 40 Security Requirements and Precautions Pertaining to Hidden Volumes ............................... 43 HIDDEN OPERATING SYSTEM .......................................................................................................... 47 Process of Creation of Hidden Operating System ................................................................. 49 Plausible Deniability and Data Leak Protection .................................................................... 50 Possible Explanations for Existence of Two TrueCrypt Partitions on Single Drive ............. 50 Safety/Security Precautions and Requirements Pertaining to Hidden Operating Systems ... 52 MAIN PROGRAM WINDOW ....................................................................................................... 54 Select File .............................................................................................................................. 54 Select Device ......................................................................................................................... 54 Mount ..................................................................................................................................... 54 Auto-Mount Devices .............................................................................................................. 54 Dismount ................................................................................................................................ 54 Dismount All .......................................................................................................................... 55 Wipe Cache ............................................................................................................................ 55 Never Save History ................................................................................................................ 55 Exit ......................................................................................................................................... 55 Volume Tools ........................................................................................................................ 56 2 PROGRAM MENU ............................................................................................................................. 57 Volumes -> Auto-Mount All Device-Hosted Volumes ......................................................... 57 Volumes -> Dismount All Mounted Volumes ....................................................................... 57 Volumes -> Change Volume Password ................................................................................. 57 Volumes -> Set Header Key Derivation Algorithm .............................................................. 57 Volumes -> Add/Remove Keyfiles to/from Volume ............................................................. 58 Volumes -> Remove All Keyfiles from Volume ................................................................... 58 Favorites -> Add Mounted Volume to Favorites ................................................................... 58 Favorites -> Organize Favorite Volumes ............................................................................... 58 Favorites -> Mount Favorites Volumes ................................................................................. 58 Favorites -> Add Mounted Volume to System Favorites ...................................................... 58 Favorites -> Organize System Favorite Volumes .................................................................. 58 System -> Change Password .................................................................................................. 58 System -> Mount Without Pre-Boot Authentication ............................................................. 58 Tools -> Clear Volume History ............................................................................................. 59 Tools -> Traveler Disk Setup ................................................................................................. 59 Tools -> Keyfile Generator .................................................................................................... 59 Tools -> Backup Volume Header .......................................................................................... 59 Tools -> Restore Volume Header .......................................................................................... 59 Settings -> Preferences .......................................................................................................... 60 MOUNTING TRUECRYPT VOLUMES ................................................................................................