Disk encryption is the process by which every bit of data on a disk is encrypted, protecting it against unauthorized persons.

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Upgrading from loop-aes to cryptsetup

Once upon a time, I had an encrypted external disk that I would mount thus: # losetup -e AES128 /dev/loop1 /dev/sdb1 # fsck /dev/loop1 # mount /dev/loop1 /mnt/wd # ls /wd There are those that say ...
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How to prevent “evil maid” attacks? How to move /boot to a USB pendrive?

Apparently using full-disk encryption is not enough to secure a computer, because the /boot partition is not encrypted, and could be modified to include a keylogger. I have read about different ...
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Could disk encrypted with cryptsetup on Linux be read on Windows?

I need to encrypt my USB disk so it's accessible both in Ubuntu and Windows 7. I plan to use cryptsetup in linux and another one in Windows, if that's possible. Is it possible to use cryptsetup drives ...
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Hard Drive Encryption

I have a new HP laptop 2540p and was wondering how hard is it to encrypt the whole hard drive? Does it slow boot time? Does it make loading programs take longer? You have to enter a password at boot ...
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Linux bootloader on USB-stick, load different kernel depending on hardware

I'm experimenting with a setup where I keep my kernel and initrd on a USB stick, and thus I can keep everything on the actual computers fully encrypted. Nothing is stored in clear text, and nothing ...
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Create an auto-growing encrypted folder on linux?

I would like to create an encrypted folder on my ext4-data partition, where I can move some secret data into. how do I create such a folder? The drive is already more than half full, so is there a ...
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196 views

Win 7 full disk encryption with backup

I have a win 7 laptop that I would like to fully encrypt the hard drive and back up the encrypted hard drive routinely. Should I use TrueCrypt (not running Ultimate)? And how would I access the ...
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Full Disk Encryption with TPM, not subject to cold boot attack

Here's a passage from Wikipedia on BitLocker Once a BitLocker-protected machine is running, its keys are stored in memory where they may be susceptible to attack by a process that is able to ...
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221 views

How can I create an encrypted file on OSX for opening on Win7 w/out 3rd party software?

I do love PGP/GPG, but I have users who don't want to, or can't, install 3rd party binaries. Is there a way on OSX to create a (strongly) encrypted file on OSX which can be opened by Windows 7? With ...
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Why the results of Truecrypt and cryptsetup (LUKS) benchmarking are so different?

I want to encrypt a part of my HDD. But before that I wanted to benchmark the different algorithm available wondering if I should choose aes-xts-256 or aes-xts-512. Note: I don't have aes hardware ...
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45 views

How to autodetect device name in Linux

I have an encrypted USB dongue with cryptosetup, to mount it I have to execute a script that has hardcoded (or admits it as a parameter) the device name of that dongue that previously you had to ...
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Win7 --> Win8 = Bitlocker won't ask for password

I have a Dell E6520 laptop with a TPM. It had Windows 7 Enterprise x64. The C (boot) partition is encrypted with Bitlocker. Bitlocker would prompt me for a password after POST, and after I entered ...
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552 views

linux kernel mount filesystem from the encrypt partition when boot,how to?

my sd card have two partition,one is the boot,and another is the filesystem,now I use linux tool cryptsetup encrypt the filesystem partition,when boot on my board,the kernel can't mount the ...
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SSD Cache with FDE (TrueCrypt, BitLocker, etc) on Windows

I wanted to bring back an old question, but with a twist. It has been answered, how an SSD could be used as a caching drive for a larger, mechanical drive. What I am looking for is to have the same, ...
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266 views

PGP encrypted external Toshiba drive

I encrypted my external hard drive, a 350 GB Toshiba with PGP disk encryption and i forgot the password. Question: Is it possible to use a brute force attack (considering i know part of the password), ...
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232 views

Perfectdisk 12.5 and Truecrypt 7.1a with system drive encryption

Are these softwares compatible ? And performance hit level. Does it make my laptop slower I'm using HP pavilion g4.
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Can I access keyboard history without a keylogger?

By accident I wrongly typed a password (twice) that I completely forgot, when I was encrypting my external Toshiba drive with PGP Disk. I have no backup, nor *.krp files to repair my key, but I am ...
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966 views

Correct misaligned encrypted partitions

I have encrypted my SSD with dm-crypt/LUKS to install an Archlinux in an LVM container. Here's a graph of the structure (it's in French but should be understandable): Now I realised I should have ...
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2k views

How can I decrypt a bitlocker drive after startup automatically without encrypting the Windows drive?

I want to startup my Windows and then see a dialog box (or a commandline window) that prompts me for the drive password to decrypt it automatically after bootup. I tried to make a .bat "script" ...
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325 views

centos 6.2 VPS system encryption performance

My webapp database handles some user profile data (name, birthday, work and education history, email, facebook id, and also my facebook app secret that would provide any holder access to any facebook ...
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856 views

EFI System Partition and unallocated space?

I just got a 3 TB external hard drive (I didn't look closely enough and ended up buying one for Mac but I run Windows 7) and it came with a bunch of software I don't particularly want. I want to ...
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683 views

Recover from botched full disk encryption using FileVault2

I decided to enable full disk encryption using FileVault2 in OSX Mountain Lion, but near the end of the encryption process, I get a message telling me that it failed, and that I should disable and ...
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How do I mount a cryptoloop drive in Debian?

I've got an encrypted drive, which I mount under Ubuntu (12.04) like: # modprobe cryptoloop # losetup -e AES128 /dev/loop0 /dev/sda5 # mount /dev/loop0 /mnt But with a recent Debian install (6.0.6 ...
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96 views

How hard drive internal encryption works?

I see many hard or SSD drives with internal encryption. They often claim to have 256 bit AES. So I can write the data to such disk and data will be stored encrypted. And I can read that data in ...
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Removing encrypted partition on Mac os X does not work

I have an encrpyted partition on my mac which I'd like to get rid of. I have already backed up my data and have tried several things that I found on the web. You can find the output of diskutil cs ...
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Is TrueCrypt full disk encryption on windows 8 safe to use? [closed]

Since Windows 8 is currently still not 100% supported, I was wondering if full disk encryption is more or less safe to use in Windows 8. I couldn't find any info on that on the internet, so I used a ...
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Encryption of external HDD — accessible from windows without installation

I would like to use encryption on my external HDD but I would like to be able to access the encrypted data from Windows as well. As suggested in other questions, TrueCrypt is one option here, or I am ...
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1answer
2k views

openSuse full disk encryption

I'm a proud Suser. I'm about to reinstall 12.2 on my ASUS N76VZ (UEFI x64 laptop). Since I'm very sensitive about laptop security against theft or unwanted inspection, I chose to use BitLocker with ...
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621 views

How to create an encrypted swap partition in Debian 6?

I am installing Debian and would like to set up the /swap partition as encrypted. I am able to select either encrypted physical device or as swap/swap. Are there any methods to create an encrypted ...
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encrypted backups for Linux and FreeBSD readable for both

I have a Linux and a FreeBSD computer, both encrypted (LUKS and geli respectively). I am wondering how to make backups that would also be encrypted and would be readable to both (so that if one of the ...
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215 views

Remove EFS recovery agent from domain member

I cannot ask our Domain Admins to update recovery agent, since they are in other country and they serve millions of people worldwide (actually, I've asked with no success). GPO disables EFS at all, ...
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How to decrypt a disassembled WD MyBook Essential hdd?

I have a WD MyBook Essential 3TB that stopped being recognized in every computer. But the HDD seems fine. I disassembled it and got it out of the WD case, now I have a WD30EZRS HDD but it is ...
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487 views

What alternative security measures are there to full drive encryption (for performance reasons)?

I'm evaluating full drive encryption using Truecrypt on my Crucial M4 SSD on Windows 7 32bit Pro on my Toshiba NB100 Atom N270 Netbook. I've encrypted this and noticed an increase in the boot time ...
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457 views

Cannot mount TrueCrypt volume

I encrypted a 800GB partition on my 1TB hard drive. The process completed successfully. But, now when I mount the drive it asks me to format it. I cannot open it. I have 600GB of data and I am not ...
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Do there exist any published security audits of FreeOTFE?

I see that http://www.freeotfe.org offers FOSS encryption software for Windows. This software also has a Wikipedia article devoted to it. However, it appears to have received less scrutiny than its ...
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Decrypting a TrueCrypt drive pulled from another machine

I work in a corporate environment and we are now required to encrypt laptops. I have already encrypted about 5 or 6 out of 40. I still have a few questions before we go all out with TrueCrypt. Can ...
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3k views

How to check if partition is Bitlocker encrypted

I am creating a Virtual Harddisk but I want to confirm that the partition on which I am creating VHD is not bitlocker encrypted. I am using windows 7 home premium. Thanks a ton..
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How do I use ACLs on an encfs filesystem?

I have a Debian server which I've set up file ACLs on. However, ACLs on the encfs filesystem I've made don't seem to be handled properly. The mount directory is setguid and has a default:group::rwx ...
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Trying to delete directory with “rm -rf”, but get message that it's not empty

I've tried deleting a directory using "rm -rf" and I'm getting the message "Directory not empty": Bens-MacBook-Pro:please benjaminhocking$ ls -lart empty_directory/ total 16 drwxr-xr-x 5 ...
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is there a way to stop mac osx disk encryption in progress?

I chose a 1T external drive for time machine and checked the "encrypt backups" option. I thought it will only encrypt the backups, but as it seems it is now encrypting the whole drive which has quite ...
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Right way of installing Windows 8 and Ubuntu with encrypted file system

Here is problem. for which I am looking for solution My Current Installation on laptop and HDD Partition is as follows. 500 GB HDD -- C: 35 GB [Windows 8 Consumer Preview] -- D: 195 GB -- E: 195 GB ...
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5k views

Clone McAfee encrypted partition to SSD

I have a corporate laptop with a slow 5400 rpm C: drive, and I want to clone the drive to an SSD drive to improve performance on the laptop. The plan is to replace the original drive with the new SSD ...
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Does a Windows 7 system volume encryption tool exist that allows remote unlocking via ssh during boot phase?

Does a tool/method exist which allows encrypting a Windows 7 system volume while providing the possibility to remotely unlock it via ssh during the boot phase? Is it even possible with Windows 7 (I ...
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396 views

How many guesses per second are possible against an encrypted disk? [closed]

I understand that guesses per second depends on the hardware and the encryption algorithm, so I don't expect an absolute number as answer. For example, with an average machine you can make a lot ...
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1answer
395 views

FDE / SSD - partition and leave some unencrypted?

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 ...
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How to change pass phrase of full disk encryption?

I installed Ubuntu 12 with full disk encryption, and now I want to change the pass phrase. How can this be done?
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630 views

Deniable encryption for Linux?

Browsing on wikipedia about some cryptography topics, I found this: http://en.wikipedia.org/wiki/Deniable_encryption, and it sounds like a good idea, so I want to try it. I noticed that some programs ...
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Is filesystem encryption any good if someone steals my computer while it's on?

I'm using Ubuntu 12, and during installation I have chosen to encrypt the disk and home directory. I only introduce the disk password the first time I log in, so I guess the disk is not encrypted ...
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262 views

installing linux on full disk encrypted machine [duplicate]

I have machine with windows 7 installed and full disk encryption using TrueCrypt. I'm wondering if there is a way to install linux next to windows but without reinstaling everything and loosing data? ...
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Ubuntu 12.04 - full disk encryption without alternate installer?

Is there a way to have a full-disk encryption on Ubuntu without using alternate installer CD?