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• Encrypting a thumb drive

  - by Kris

  What I would like to do is create a hidden, TrueCrypt partition on my thumb drive (along with the "fake" partition that it creates) but I also don't want to have the TrueCrypt software installed onto my machine. Is there a way to do this but add TrueCrypt as an auto-start item so I plug in my thumb drive, mount the hidden partition, and go? Beyond that, is there a way to make it work in ANY operating system (i.e. automatically start TrueCrypt on OS X, Linux or Windows on plug-in)? I'm more concerned with my first question but this would be icing on the cake.

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• FDE / SSD - partition and leave some unencrypted?

  - by Web Design Hero

  Just bought a used beast of a desktop pc. The system drive is setup as a Raid 0 SSD (Intel 510 SSD Drives) with 128 each. I will probably not have to many programs beyond office and maybe Adobe CS if I spring for it, I will be keeping big data on a regular hdd. My question is about setting up TrueCrypt with my configuration. I have not previously done full disk encryption, but I feel that its probably a good idea. I have done some speed tests using file containers on the hdd and the sdd with truecrypt. While there is a huge hit with the SSDs and Truecrypt, it still outperforms the hdd on its own by a good margin, so I think i will be okay for my needs with truecrypt. I have seen in a few places that they recommend partitioning the drive and leavign some of the SSD not inside truecrypt, does this really make a difference? If so, how much should I leave? Will there be any issue in the Raid0 configuration? I am not really concerned about all the wear leveling issue, rather loose data and be secure, but since I don't need all that space neccesarily, I would like to optimize my setup for security and speed.

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• Windows 2008 and Truecrypt: can't access shared folder called "media"

  - by Sajee

  On my Windows 2008 system, I've attached an external USB drive that's encrypted using Truecrypt. Once I mounted the Truecrypt drive, I share some of the directories from that drive using Windows file sharing. I tried sharing a folder called "media" and when I try to access that folder from a Vista client on my LAN via \myserver\media, I get this error: \myserver\media is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. An unexpected network error occurred. If I share the folder media under some name such as fizzbuzz then I can access \myserver\fizzbuzz w/o any errors. Any clues as to why this is happening? Related: http://serverfault.com/questions/27684/windows-2008-and-truecrypt-how-to-automatically-mount-shared-folders-after-rest

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• Mac questions: installing TrueCrypt and Windows 7

  - by KeyStroke

  Hi, I'm about to buy a Mac laptop, but I need to be able to use Windows 7 as well + encrypt the HDD with TrueCrypt (or a better alternative for the mac). My questions are: 1) How well does Windows 7 perform under boot camp? 2) Will I be able to encrypt the whole HDD (with TrueCrypt or whatever else) and still use boot camp to dual-boot? Your help is much appreciated

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• How to encrypt dual boot windows 7 and xp (bitlocker, truecrypt combo?) on sdd (recommended?)

  - by therobyouknow

  I would like to setup a dual boot Windows 7 and Windows XP laptop/notebook computer where each operation system's partition is fully encrypted. I would like to do this on a SSD - a 128Gb Crucial M4. My research Dual boot of truecrypt encrypted OSs on one drive (not possible - in Truecript 7.x at time of writing) This cannot be done on a standard Truecrypt setup - it will only support encrypting one of the operating systems. I have tried this and also read about it here on superuser.com However, I did see a solution here that uses grub4dos as the initial bootloader to chain to separate truecrypt encrypted OSs, in my case Windows 7 and Windows XP: http://yyzyyz.blogspot.co.uk/2010/06/truecrypt-how-to-encrypt-multiple.html I am not going to consider this solution as it relies upon some custom code for use in the bootloader that is provided by the author. I would prefer a solution that can be fully understood so that I can be sure that there is nothing undesirable occuring (i.e. malware or just simply bugs in the code). I would like to believe such a solution doesn't have those risks but I can't be sure. BitLocker and Truecrypt combination - possible solution? So I am now considering a combination of encryption programs: I now aim to encrypt Windows XP with Truecrypt and Windows 7 with BitLocker. Assuming Truecrypt bootloader can boot into non-Truecrypt OSs (e.g. via hitting Escape to go to another menu), then this solution may be viable. SSDs and Encryption (use fastest possible spinning hard disk instead (?)) I read on various superuser.com posts and elsewhere that current SSDs are not suited to whole drive encryption for various reasons: impact of performance algorithms that give SSDs advantage over spinning harddisks. Algorithms used in compression of data for example. Wear on the SSD, shortening its life Security issues whereby data is repeated, as indicated in some Truecrypt documentation So I am now considering not using SSD. But with the aim to have the fastest drive possible, I am considering using the Western Digital Scorpion black 2.5" 7200rpm harddisk as this appears to be top rated among spinning platter-based harddrives (don't work for Western Digital). Summary So to achieve whole drive encrypted dual boot Windows 7 and Windows XP with minimal performance impact I intend to use a combination of Truecrypt and Bitlocker on a top-rated conventional spinning platter-based harddisk. Questions Will my summary: achieve whole disk encryption of the dual-boot Windows XP, Windows 7? OR an you suggest a simpler solution, including one that only requires only Truecrypt (BitLocker not available on XP). Or another encryption tool, including paid-for? provide the highest performance. Am I correct to avoid using SDD with encryption for the reasons I discovered? Are the concerns about SSDs and encryption still very real (some articles I read go back to 2010) Thanks for your input!

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• Variable size encrypted container

  - by Cray

  Is there an application similar to TrueCrypt, but the one that can make variable size containers opposed to fixed-size or only-growing-to-certain-amount containers which can be made by TrueCrypt? I want this container to be able to be mounted to a drive/folder, and the size of the outer container not be much different from the total size of all the files that I put into the mounted folder, while still providing strong encryption. If to put it in other words, I want a program like truecrypt, which not only automatically grows the container if I put in new files, but also decreases it's size if some files are deleted. I know there are some issues of course, and it would not work 100% as truecrypt, because it basically works on the sector level of the disk, giving all the filesystem-control to the OS, and so when I remove a file, it might as well be left there, or there might be some fragmentation issues that would stop just truncating the volume from working, but perhaps a program can be built in some other way? Instead of providing sector-level interface, it would provide filesystem-level interface? A filesystem inside a file which would support shrinking when files are deleted?

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• When to use Truecrypt, and when not to?

  - by tm77

  I have about 30 (this number will most likely grow over the next few years to 50 or more) unencrypted laptops that I have been tasked to encrypt (entire drive). These machines will be used off site regularly by my users. These machines are running Windows 7 and XP (about 50/50), but more Windows 7 every month. I have experience with Truecrypt, and have had no issues. It appears to be THE solution for a free solution. My concern with Truecrypt is that my users will have 2 passswords needed to login to their machines. Also, I need to choose to either have 1 password for my organization, or carefully document each machine's password (management nightmare). In my mind, choosing between a managed and a free encryption solution is primarily based on the NUMBER of machines that will be encrypted and supported. Two questions: From a management standpoint, what is the tipping point of users where a managed solution would pay for itself over Truecrypt? What are some good third party solutions? (I will consider Bitlocker, but the price to upgrade Windows 7 licenses is a turn-off) I would love to hear from some admins with experience in supporting encrypted machines in a corporate environment. Many thanks in advance!

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• SVN do unnecessary chmod on .svn/tempfiles

  - by ???

  My working dir is on an TrueCrypt NTFS volume, with umask 000. So I can read/write on any files with no problem. But I can't do svn command on it, for example `svn update' shows error: svn: Can't set permissions on '.svn/tempfile.8.tmp': strace svn up gives: ... chmod("sbin/.svn/tempfile.2.tmp", 0770) = -1 EPERM (Operation not permitted) fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 write(3, "( failure ( ( 1 76:Can't set per"..., 172) = 172 fcntl64(3, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK) fcntl64(3, F_SETFL, O_RDWR) = 0 read(3, "( abort-edit ( ) ) ( failure ( ("..., 4096) = 191 gettimeofday({1276661368, 382789}, NULL) = 0 lstat64("sbin", {st_mode=S_IFDIR|0770, st_size=0, ...}) = 0 select(0, NULL, NULL, NULL, {0, 1000}) = 0 (Timeout) write(2, "svn: Can't set permissions on 's"..., 82svn: Can't set permissions on 'sbin/.svn/tempfile.2.tmp': Operation not permitted) = 82 close(3) = 0 So, the error occurred when svn chmod on some tmp files. But this is disallowed in the TrueCrypt volumes, and it's just unnecessary. Can I bypass the chmod lib calls when launch svn on TrueCrypt volumes?

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• Can't remove file using Truecrypt 6.3a in Windows 7

  - by Marvin

  I am using Truecrypt 6.3a in Windows 7, but cannot remove file, just read only, how can I solve.Thanks.

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• « Utiliser TrueCrypt n'est pas sûr, il peut contenir des failles de sécurité », la fin mystérieuse de la solution de chiffrement

  « Utiliser TrueCrypt n'est pas sûr, il peut contenir des failles de sécurité » la fin mystérieuse de la solution de chiffrementAprès la faille Heartbleed dans OpenSSL, des informations concernant l'outil de chiffrement open source TrueCrypt viennent à nouveau bouleverser l'écosystème de la sécurité sur internet. Une des pages officielles de l'outil affiche un mystérieux message affirmant que le développement de TrueCrypt a été arrêté et que les utilisateurs doivent cesser d'avoir recours à celui-ci.«...

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• how insecure is my short password really?

  - by rika-uehara

  Using systems like TrueCrypt, when I have to define a new password I am often informed that using a short password is insecure and "very easy" to break by brute-force. I always use passwords of 8 characters in length, which are not based on dictionary words, which consists of characters from the set A-Z, a-z, 0-9 I.e. I use password like sDvE98f1 How easy is it to crack such a password by brute-force? I.e. how fast. I know it heavily depends on the hardware but maybe someone could give me an estimate how long it would take to do this on a dual core with 2GHZ or whatever to have a frame of reference for the hardware. To briute-force attack such a password one needs not only to cycle through all combinations but also try to de-crypt with each guessed password which also needs some time. Also, is there some software to brute-force hack truecrypt because I want to try to brute-force crack my own passsword to see how long it takes if it is really that "very easy".

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• virtual machines and cryptography

  - by Unknown

  I suspect I'm a bit offtopic with the site mission, but it seems me more fitting for the question than stackoverflow i'm in preparing to create a vm with sensible data (personal use, it will be a web+mail+... appliance of sorts), i'd like to protect the data even with cryptography; the final choice have to be cross-platform for the host basically, I have to choose between guest system-level cryptography (say, dm-crypt or similar) or host level cryptography with truecrypt. do you think that the "truecrypt-volume contained virtualized disks" approach will hit the i/o performance of the vm badly (and therefore dm-crypt like approaches into the vm would be better), or is it doable? I'd like to protect all the guest data, not only my personal data, to be able to suspend the vm freely without worrying for the swap partition, etc

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• prevent OS X from prompting disk initialization/formatting

  - by Just-A-User.A-Superuser

  i have TrueCrypt partition, when i insert it in OS X, it always prompt me to initialize the hard disk. is there a way to prevent os x from detecting uninitialize hard disk? [UPDATE] by the way, as Truecrypt suggested while i'm in Windows, i must make partitions so the os won't detect the hard drive as uninitialized. Windows respected that the drive already have contents by the mere fact that it has partitions, while OS X thinks that it is still uninitialized. i think OS X is trying to be smart by detecting if each partition has a valid filesystem id/marker

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• Prevent Mac OS X from prompting disk initialization/formatting

  - by Just-A-User.A-Superuser

  I have a TrueCrypt partition. When I insert it in Mac OS X, it always prompt me to initialize the hard disk. Is there a way to prevent Mac OS X from detecting uninitialize hard disk? [UPDATE] By the way, as Truecrypt suggested while I'm in Windows, I must make partitions so the OS won't detect the hard drive as uninitialized. Windows respected that the drive already have contents by the mere fact that it has partitions, while Mac OS X thinks that it is still uninitialized. I think Mac OS X is trying to be smart by detecting if each partition has a valid filesystem id/marker.

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• Looking for a USB Thumbdrive / Flash drive encryption solution (not TrueCrypt)

  - by Max888

  I am looking for a USB Thumbdrive / Flash drive encryption solution. I have searched the net but I have never come accross a solution which meets the following: Must handle at least 4GB volume If possible, fully portable (no install required required) Does not require admin rights in order to access/write encrypted files on the flash drive Does not corrupt data should the flash drive is removed from a USB port and the data is in a 'unencrypted' status Data is automatically encrypted if the flash drive is removed from a USB port and the data is in a 'unencrypted' status Portable apps must be able to run from the 'unencrypted' volume (in non-admin mode) PLEASE do not mention TrueCrypt as I am not considering (especially for wish list #3) Many thanks! Update 5th October 2009: Still unresolved.

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• Change Apache DocumentDirectory path in trueCrypt partition

  - by Alan C

  Hello, I'm recently moving from windows to linux, so I've setup my machine to dual boot Windows7 and Ubuntu 10.04. I was able to successfully setup Apache on the Ubuntu partition, but I need to move the DocumentRoot since my websites are on a TrueCrypt partition that is in another hard drive so I can have them accessible in both OS. I followed some guides on how to change the path for the DocumentRoot so I end up modifiying the default file at /etc/apache2/sites-available DocumentRoot /media/truecrypt1/www <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /media/truecrypt1/www/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> Those are the lines that I've changed, but now when I go to localhost I always get the Forbidden You don't have permission to access / on this server. Apache/2.2.14 (Ubuntu) Server at localhost Port 80

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• Recommended drive encryption solution

  - by Chris Driver

  Hello, I will soon be purchasing a number of laptops running Windows 7 for our mobile staff. Due to the nature of our business I will need drive encryption. Windows BitLocker seems the obvious choice, but it looks like I need to purchase either Windows 7 Enterprise or Ultimate editions to get it. Can anyone offer suggestions on the best course of action: a) Use BitLocker, bite the bullet and pay to upgrade to Enterprise/Ultimate b) Pay for another 3rd party drive encryption product that is cheaper (suggestions appreciated) c) Use a free drive encryption product such as TrueCrypt Ideally I am also interested in 'real world' experience from people who are using drive encryption software and any pitfalls to look out for. Many thanks in advance... UPDATE Decided to go with TrueCrypt for the following reasons: a) The product has a good track record b) I am not managing a large quantity of laptops so integration with Active Directory, Management consoles etc is not a huge benefit c) Although eks did make a good point about Evil Maid (EM) attacks, our data is not that desirable to consider it a major factor d) The cost (free) is a big plus but not the primary motivator The next problem I face is imaging (Acronis/Ghost/..) encrypted drives will not work unless I perform sector-by-sector imaging. That means an 80Gb encrypted partition creates an 80Gb image file :(

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• problem transferring Win 7 operating system hard drive to be used as external hard drive

  - by itserich

  Win 7 Asus MA479 8GB Ram hard drives are 500GB The operating system was a Caviar Green, and I tried to exchange it for a Caviar Blue. The Caviar Blue took the install correctly, but the Green, the prior operating system hard drive, will not allow itself to be used as an external hard drive. I use TrueCrypt and tried to format the Green and it freezes each time at the very end of the encyrption of the partition. I took the Blue out of the system and tried to encrypt it, and same problem. I think there must be something on the hard drive that shows it was a system drive and it causes a conflict. I have tried writing over the system hard drive to fully erase everything but that does not work, it still freezes. The drives will work in a different pc, i.e. other pc where it never was the system drive. The external hard drive is connected esata through Thermaltake. I have used TrueCrypt on various pc's for years including this Win7 with no problem. Thank you.

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• Encrypted Windows 7 & Linux Advice Wanted

  - by Miles

  I would like to set up my laptop to dual boot Arch Linux and Windows 7 with file sharing and encryption. Just wanted some advice on going about this because I have not dealt with encryption nor file sharing. I have two 500GB hard drives, and this is my plan: Install Windows 7 across both hard drives Use a live CD to wipe out Windows boot loader and replace with Grub Legacy Use live CD to wipe out second hard drive and re-size the Windows partition located on first hard drive Install Arch Linux along side with Windows 7 on first hard drive, all remaining space goes to home folder as ext2 Install truecrypt and ext2fsd Concerns: Is this the most efficient way to share files between both OSes? Or should I just be using NTFS to store all my data? How would the file permissions work when sharing files between Windows and Linux? Is there a high likley hood of corruption, and what is the ease of backing up files from an encrypted disk? Anything I should look out for, conflict between Grub and Truecrypt? Thank you for any advice, and feel free to post any links you might find useful to me. I am trying to plan this out so I can minimize downtime as I do not want to spend more than a night on this, nor do I want to run into a major problem some time in the future.

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• Free Mac whole disk encryption

  - by stevekuo

  Are there any free solutions for encrypting the entire boot disk on a Mac? I'm aware of PGP's Whole Disk Encryption, but it's a bit steep at $149. TrueCrypt's System Encryption seems to only work with Windows.

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• Why is bitlocker considered to be "broken"?

  - by Daisetsu

  I've heard people talking about full drive or partition encryption for laptops and desktops alike, and they consistently put down Microsoft's BitLocker. What is wrong with bitlocker, and is Truecrypt really that much better?

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• encrypt multiple systems (win7 + deb)

  - by daftu

  I've installed two operatings system on single drive with 3 partitions (#1 Windows 7, #2 Debian Squeeze, #some data). Grub 2 is installed in MBR and lets me choose which system to boot. I would encrypt the 1st system partition containing Win 7. I tried to do this using TrueCrypt under Windows, but it says that encrypting Windows system with other loader (not windows loader, Grub in my case) is not supported. How can I do that?

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• Time Machine (OSX) doesn't back up files in Mount Point or Disk Image File

  - by Chris

  I found this Q&A (http://superuser.com/questions/148849/backup-mounted-drive-of-an-image-in-time-machine) and this prompted me to ask the following question: I have two disk images which are scripted to be mounted on login. These two disk images are always mounted to the same location. These two disk images are encrypted TrueCrypt volumes. Time Machine (TM) will only back up the disk images the first time they are mounted, but not after that. As I modify documents within the volumes throughout the day, the modified timestamps are adjusted properly. However, TM does not back them up. TM never backs up the mount points which are two folders within my home directory. Any ideas as to why neither the mount point or the image files are backed up? Do the image files have to be closed (unmounted) after being modified for TM to back them up? Thanks, Chris

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• Time Machine (OSX) doesn't back up files in Mount Point or Disk Image File

  - by Chris

  Hi all, I found this Q&A (http://superuser.com/questions/148849/backup-mounted-drive-of-an-image-in-time-machine) and this prompted me to ask the following question: I have two disk images which are scripted to be mounted on login. These two disk images are always mounted to the same location. These two disk images are encrypted TrueCrypt volumes. Time Machine (TM) will only back up the disk images the first time they are mounted, but not after that. As I modify documents within the volumes throughout the day, the modified timestamps are adjusted properly. However, TM does not back them up. TM never backs up the mount points which are two folders within my home directory. Any ideas as to why neither the mount point or the image files are backed up? Do the image files have to be closed (unmounted) after being modified for TM to back them up? Thanks, Chris

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• What do encrypted files' data look like?

  - by Frost Shadow

  I know there are a lot of encryption programs available, that I would guess use different methods for encryption, and thus have different types of output files (.fve .tc .cha .dmg (bitlocker, truecrypt, challenger, ect.)), but if someone didn't know what the file was and just looked at the data, what would it look like? Does it just look like random bits, or can you still pick out a pattern? If it does look random, how is it if I moved the encrypted file to another computer, the other computer can tell it's a file, and is able to decrypt it (how would it even know where to start or stop, if it all looked random)? Also, how is the structure affected by encrypting files twice, using the same method, or a different one? Thanks for any help, and if you know any books or site about encryption for complete idiots, I'd appreciate it!

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