Disk encryption is a special case of data at rest protection when the storage media is a sector-addressable device (e.g., a hard disk).

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Is it safe to do full disc encryption without ECC DRAM?

Our institution requires disc encryption on laptops, but I'm uneasy about using full disc encryption without SECDED ECC DRAM. Is it safe to use full disc encryption on laptops with unreliable memory? ...
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2answers
3k views

Free/Libre software to handle TCG OPAL 2.0-compliant Self-Encrypting Drives (SEDs)?

I'm in search of a free/libre software that is able to handle OPAL (2.0)-compliant SEDs (i.e. manage the setting of Pre-Boot Authentification (PBA) environment, encryption keys...). It could be a ...
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1answer
231 views

Does any PXE/Full disk encryption password concept like this exist?

This question may just show a distinct misunderstanding of things on my part, and I apologize if it is, but I thought I'd put it out here as I don't know where else to ask. I've been thinking about ...
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1answer
78 views

Is the following environment contained?

I would like to make sure that my working environment is contained (prevent data leaks meaning I don't want temp file or traces from files I have worked on). I am about to create a usb key with the ...
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1answer
429 views

The Pirate Bay's new Hosting Architecture [closed]

I read this article a moment ago: http://www.geek.com/news/the-pirate-bay-is-now-hosted-anonymously-in-the-cloud-1522725/ But it was very light on details. Is an architecture as described in this ...
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2answers
126 views

Is there a hard-to-spoof identifier associated with a physical hard disk

I would like to salt the pass phrase with the drive id in such a way that, if the disk were imaged to a new drive with a different id, (e.g. by a government forensics specialist) then the image would ...
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2answers
253 views

Pre / post disk encryption wipe?

When dealing with full disk encryption a lot of utilities I've worked with will provide the option to fill the disk with random data to make distinguishing the encrypted contents harder to identify. ...
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0answers
122 views

Formatting before encrypting [closed]

Is formatting a device before encrypting more secure as opposed to encrypting the device without a formatting?
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2answers
17k views

How secure is Ubuntu's default full-disk encryption?

How secure is the encryption offered by ubuntu (using the disk utility)? What algorithm is used underneath it? If someone could at least provide a link to some documentation or article regarding that ...
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5answers
544 views

Encrypted disk at risk if laptop stolen while turned on but locked

If I have a laptop with full disk encryption it's turned on, the screen is locked and it gets stolen. How would an attacker get my data? It's not encrypted at the moment because it's turned on but the ...
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2answers
5k views

Ubuntu LVM Encryption

I recently installed Kubuntu and I noticed the option for having an encrypted LVM. The behavior suggests it's full disk encryption since I need to put in a password before I can boot. This article and ...
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2answers
448 views

Is it nescecary to wipe and reset the MBR when laptop changes owners even if full disk encryption is used?

Where I'm currently working we use full disk encryption and after a laptop transfer owners we use a secure erasure program. This is quite time consuming and I'm wondering is it necessary? For the disk ...
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2answers
252 views

Is it possible to share BitLocker decryption keys between multiple TPMs?

The TPM specification mentions that some keys are migratable, i.e. transferable to another TPM. Does this mean that it would be possible to share (transfer) a BitLocker decryption key between several ...
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2answers
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Is it possible to encrypt a virtual machine using virtualbox? [closed]

Is it possible to encrypt a virtual machine using virtualbox, and not leave accessible to the users of the machine where it hosted, and not allow any file to be extracted it with some program ? The ...
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2answers
2k views

How to encrypt data on the server?

I have some data on the server (running Linux) which needs to be encrypted (company policy). This data is being served by an application running on this machine. Now I consider a few possibilities: ...
3
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1answer
628 views

Recognizing PGP-encrypted disks

I am studying various disk encryption schemes (such as PGP, MS Bit Locker, BestCrypt and TrueCrypt) on my Windows OS. I am interested to know how an encrypted partition/disk/file with a particular ...
6
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2answers
359 views

Full-disk encryption and theft mitigation?

Is it possible to combine the security of full-disk encryption (e.g. Truecrypt) with the honeypot-like performance of anti-theft tools (e.g. Prey)? In other words, is it feasible to have both strong ...
3
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1answer
229 views

Remote System Administration of an Encryption-Switch-Encrypted Infrastructure

I can't seem to find a decent explanation anywhere of the practicalities of remote system administration (e.g. SSH) of an encryption-switch-encrypted SAN-stored infrastructure. The environment will ...
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1answer
768 views

Is there a way to encrypt an existing ext4 filesystem with already data on it? [duplicate]

I have a big drive with already data on it, that I would like to encrypt (ext4). Is there a way to encrypt that disk without having to move the data to another drive first? Or maybe, this would be ...
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1answer
235 views

Accessing hidden partitons

I have two disks. They're both bootable and run Linux. When I physically mount the disks, I can see scsi devices get added. /dev/sdb and /dev/sdc. However the partitions are not detected. I can't see ...
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5answers
524 views

Should a full disk encrypted hard drive on a live system be considered encryption at rest?

If you are specifying requirements that a certain classification of data be encrypted while at rest (on storage), should the requirement be considered met if the data is stored on an live (turned on) ...
3
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2answers
342 views

Is it safe to suspend my computer if I'm using encrypted hard drive?

I'm using disk encryption to protect my data and sensitive information - but only one partition. I used to suspend my computer instead of shutting it down because of very fast resume and very low ...
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1answer
223 views

Dual Linux System with Whole Disk Encryption

(This is a continuation of my question on Ask Ubuntu.) My goal is I want to have a Xubuntu/Ubuntu dual boot, with a catch - I want the disk to be fully encrypted with the dm-crypt (native supplied) ...
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1answer
803 views

SSD enrcyption with ATA password - AHCI mode?

I have seen articles advising that in order to make the most of an SSD, it should be connected in AHCI mode. Some SSDs allow the ATA password to encrypt the encryption key so my question is this - ...
3
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2answers
238 views

Remedy for not having filled the disk with random data?

Filling a large HDD with /dev/urandom prior to encryption can be extremely slow (even with netcat, multiple instances in parallel, etc) and for this reason I'm sure a lot of users skip this advice ...
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1answer
195 views

Is this a security risk for us to lost TPM or others to access to reset BIOS ?

In the previous post Physically secure the system case it is recommended to physically protect the system. But in case stolen laptops where intruder have physical access to TPMs. What are the security ...
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2answers
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SSD Encryption - Difference between models

I understand that most SSDs which support encryption usually encrypt all data, but that only some actually encrypt the encryption key with a user BIOS password. This means that the models which don't ...
3
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1answer
3k views

Full Disk Encryption within a VM, how secure is it?

Just a quick query on basically how to secure a VM for a home computer for a number of uses (such as securing work related data in a good enough fashion whilst in its native environment). I'm not ...
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3answers
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Securing my USB flash drive with Truecrypt and FreeOTFE

I want to know if I encrypt my flash with Truecrypt "Encrypt a non-system partition/drive" option and then mount it and then make a container with FreeOTFE on the Truecrypt encrypted drive and then ...
2
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1answer
511 views

Is Dual Factor possible during boot with whole disk encryption on Mac FileVault 2

Mac FileVault 2 is the default disk encryption for newer Macs that occurs in the EFI pre-boot phase. The challenge here is that most smartcard drivers are loaded after the OS loads. Is anyone aware ...
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1answer
1k views

Another method to erase hard drives securely? [duplicate]

Possible Duplicate: Use truecrypt to make data unrecoverable The other day I was thinking, and I looked up this question because I was pretty sure a question similar to this had been asked. ...
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1answer
109 views

Determing and deciphering an encrypted drive (knowing the password)

I have a Western Digital external drive (my passport essential 500GB), which comes with a little software that allows you to encrypt your data (which I did sometime ago). Unfortunately, this software ...
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2answers
804 views

Possible implementations of networked+encrypted filesystem

Is it possible to implement scheme where remote server just share its filesystem (or resizable container file in it) and it's locally encrypted and mounted? And what is best practical method? (On ...
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7answers
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Encrypt Virtual Machine in the cloud

I am no expert when it comes to security in virtualized environments. However a problem I always saw is: What happens if the host OS gets hacked and an attacker gains administrative privileges? How ...
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1answer
868 views

Can a Bitlocker To Go user pin be brute forced?

I have a external hard disk and protected a partition on it with Bitlocker To Go. I printed the recovery code but I lost it. I can't remember the user PIN either. If I could only know the first ...
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1answer
482 views

Does setting a firmware password add security if FileVault 2 is enabled?

On an up-to-date OS X computer with FileVault 2 (whole-disk encryption, minus the recovery partition), is any security gained by setting a firmware password, as well?
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2answers
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What does HP DriveLock do to your password?

While looking at various hard drive encryption methods, I discovered that HP's "DriveLock" is not quite the standard ATA security system. While I did get confirmation from HP that it does indeed use ...
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6answers
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How secure is FileVault 2 while the computer is in sleep mode?

How secure is Apples disk encryption FileVault 2 when someone has physical or network access while the computer in sleep mode or is running a screen saver? Are there ways to circumvent FileVault 2 ...
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2answers
643 views

Detect changes in /boot when using full disk encryption

When running a fully encrypted linux system using dm-crypt, the /boot partition has to be unencrypted to boot, as far as I know. I've setup a server that can be unlocked remotely by connecting to a ...
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1answer
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How does disk encryption mounting work with large disk and low RAM?

For example with Truecrypt or bitlocker, when my hard disk contains 500 GB encrypted data and 256 MB Free RAM, how is the data decrypted/disk mounted when I turn on my computer? If the entire disk is ...
2
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1answer
493 views

Is using decrypt_derived more secure than a keyfile?

Say I have two partitions on a Linux system, a root partition (/) and a /home partition. Both of them are encrypted with LUKS. The /home partition needs only to be decrypted if / is unlocked and ...
4
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1answer
642 views

Reasonable (BruteForce) Attempts/Second Estimate?

I've read various articles on password strength and passwords vs pass phrases (including the one from XKCD and its thread here), but most of those articles seem to be focused on online passwords, and ...
19
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4answers
15k views

Multi-boot with full hard drive encryption and pre-boot authentication

How would I set up a multiboot system which supports full hard drive encryption and pre-boot authentication. I have a system with Ubuntu, Windows 7, Windows XP, and I would like to install Red Hat. ...
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2answers
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Full disk encryption and multi-factor authentication

All serious full disk encryption schemes I have looked into use a static password for authentication. For example, TrueCrypt supports two-factor authentication with keyfiles, but not for system ...
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7answers
5k views

Physical computer security, how to disable USB ports when the computer is 'locked'?

Lets say my PC & server is in an environment where a theoretical attacker has physical access to the machine while I'm not there. Now the data is encrypted on the hard drive with TrueCrypt. ...
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2answers
485 views

In TrueCrypt Hidden / Normal overriding?

If I have a normal TrueCrypt volume, and I want to create a Hidden volume inside of it, how do I stop the 2 from overriding each other? Or do I just have to manually make sure the inner volume does ...
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3answers
444 views

Erasing a hard-disk, encrypting it as alternative?

I was pondering about this, sometimes people ask me to erase data on their drive. So I use a shredding program, which takes a long time. However what if instead of shredding all the files, I'd just ...
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4answers
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TrueCrypt -vs- MacOS encrypted sparse image - equally secure? Other alternatives?

I'm currently trying to find my personal best solution for storing passwords and other sensible data. Recently I've used 1Password on iPhone and Mac but I'm not really satisfied with its predefined ...
5
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2answers
272 views

Securing data on laptop's hdd

I was wondering which is the best way to secure/encrypt data in the hard disk on a laptop that runs Ubuntu Oneiric? Setting LVM encryption? I am mostly concerned about having my laptop lost or what ...
5
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1answer
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Device versus file based encryption in TrueCrypt for a flash drive?

Are there security tradeoffs to be considered in deciding between encrypting an entire flashdrive with TrueCrypt versus storing a file encrypted container? The security goal is to be immune to the ...