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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How to find out whether a specific mounted Linux file system is located on a encrypted device?

How can I find out via the command line whether a specific mounted file system in a Linux system is ultimately located on an encrypted device? Of course, a generic solution would be nice, but ...
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435 views

Recovering a LUKS encrypted partition from dump

I did a Linux Mint 15 install on my notebook a couple of weeks ago, and chose to encrypt the whole disk. Yesterday I could no longer decrypt it (that is, it insisted that either the passphrase or ...
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135 views

Format encrypted/corrupted HDD

I got a hard drive which I think is either encrypted or corrupted. When I tried to connect it to my other desktop, my desktop was unable to identify it. Is there any powerful way to detect and format ...
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2answers
487 views

Re-installing Windows with HDD encrypted with Ubuntu?

When I installed Ubuntu, I encrypted everything for security reasons but now I need to switch back to Windows and I cannot boot from CD. When I boot the CD in Wine it says: Windows Setup cannot ...
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203 views

recover files from encrypted home folder

I can't seem to find the answer to my questions -- hence my posting this here. I have encrypted my home folder in LinuxMint 15 Cinammon x64. If I create images of LM's partitions via fsarchiver, ...
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163 views

Mac OS X Disk Encryption - Automation

I want to setup a Mac Mini server with an external drive that is encrypted. In Finder, I can use the full-disk encryption option. However, for multiple users, this could become tricky. What I want to ...
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465 views

Share a folder to a specific computer without login

is there a way to Share a folder to a specific computer on the network without login? meaning the pc that is sharing the folder has no account authenication
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2answers
167 views

How to verify /boot partition on encrypted LVM setup

Isn't unencrypted /boot partition a weakness for encrypted LVM setup? Attacker may install a malware to /boot partition so that it may sniff encryption password next time system boots. It may also be ...
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2answers
483 views

Ask for password every time i mount encrypted partition

So I created an encrypted partition on my main hard drive. Mac OS X would ask for its password only when I would start the system. Then I unmount it, then I try to mount it again and OS X wouldn't ...
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3answers
913 views

Does truecrypt store plaintext password in memory?

I'm aware that the plaintext password is used to decrypt the header which stores all the decryption details for the actual data. So there is no reason to store the actual password in memory once the ...
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244 views

How can I find what type of encryption my DMG is using?

I have an encrypted DMG file on my Mac. Is there any way to use Terminal, and maybe the diskutil command to list what type of encryption the DMG is using? Or perhaps some other command? Or maybe ...
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113 views

faulted newly created files when no free space

After running out of space in the $HOME i found some of my scripts failing, leaving corrupted files arround. I'll explain with an example: I'm using Ubuntu 12.04, the / partition is ext4 with the ...
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153 views

Need to “continue” encrypting a CoreStorage volume, which has failed?

I am making the push to fully encrypt my MacBook, which has two disks (an SSD, and a regular spinning disk in place of the optical drive). I have encrypted the SSD, as it is the boot drive. However, ...
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1k views

How can I encrypt my Windows 8 laptop?

I have a UEFI laptop with Windows 8 that has the GPT partition system. How can I do full disk encryption? It has been announced by the TrueCrypt team that they do not support Windows 8/GPT. I'm not ...
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383 views

Uefi and full disk encryption with lvm on luks

I have an asus machine on which i can use old bios and new uefi. I've always used the old bios system, running a full encrypted debian with the following configuration: an unencrypted boot partition ...
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1answer
725 views

Installing Ubuntu as dual boot on SED (self encrypting drive) SSD with existing Win7?

My 6430u Dell laptop will arrive with a 256 GB Self-Encrypting Drive (hardware encryption, opal). Can I install Ubuntu in a dual boot configuration? With a normal dual boot, I just boot off a CD or ...
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1answer
688 views

Business Laptop with BitLocker Disk Encryption

I am getting a new laptop soon which comes stock with 2x128GB Raid0 for the primary partition with Windows 8 Pro installed on it. It also has a 1TB hard drive for storage stuff. My question is that I ...
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1answer
2k views

Truecrypt performance difference between AES and AES-Twofish-Serpent

Is there a significant performance difference between Truecrypt encrypted drives using only AES vs disks that use a triple algorithm scheme like AES-Twofish-Serpent?
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1answer
935 views

Does Linux support self-Encrypted Disk API?

In this article it is shown how easy it is to bypass BIOS ATA passphrases, and it ends with that using the disks self-Encryption Disk (SED) API from within the OS would not give a performance hit. On ...
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1answer
1k views

Speeding up encryption during Debian install

I am installing Debian wheezy on some laptops. I have one large partition of about 750GB and a 4GB swap partition. I enabled encryption on both partitions and am now in the midst of the encryption ...
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2answers
238 views

Using a Unix terminal to encrypt a disk under OS X

I'm interested in knowing whether there are any native utilities (possibly under diskutil) to encrypt a disk via the command line in OS X 10.8.4. I can use FileVault or Mac OS's Disk Utility Erase ...
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54 views

Differences between encrypting an actual PC vs a virtual one?

Are there any differences between using for example TrueCrypt to encrypt the system drive of an actual PC and a virtual one running on ESXi? Are there any security advantages/differences?
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3answers
7k views

Reusing a USB flash drive with a hidden partition

I have a USB flash drive with a hidden encrypted partition on it. I'd like to reuse it, but so far I have been unsuccessful in wiping it. It is an SanDisk Cruzer 8GB with what I assume was with the ...
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How strong is ZFS encryption?

I've been playing with ZFS for quite a while, and was wondering how secure the disk encryption is for ZFS and how long it would hold up under a determined attack (I'm aware some of it has to do with ...
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344 views

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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320 views

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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1answer
986 views

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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107 views

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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189 views

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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5k views

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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1answer
186 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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1k views

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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193 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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1answer
43 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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2k views

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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477 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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933 views

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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245 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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225 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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6k views

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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1answer
781 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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1answer
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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1answer
309 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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1answer
731 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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612 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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2k views

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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10k views

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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2k views

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 ...