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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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 ...
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Encrypted LVM as an alternative to TrueCrypt

In a weird announcement on the TrueCrypt page it says that the software is unsafe so we should migrate to BitLocker. If it is a prank it's sure not funny especially when it comes to data. Since I ...
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1answer
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Are there other ways to encrypt files other then TrueCrypt and BitLocker [closed]

I don't trust BitLocker. Probably backdoored and relies on TPM which can be hacked according to DEFON. It also does not allow for hidden partitions or other advantages like TrueCrypt. With TrueCrypt ...
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7answers
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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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1answer
750 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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2answers
204 views

I need two separate hidden volumes in disk encryption. What are my options? [closed]

C: for system (Windows) D: for my files Makes much more sense to me than packing everything on the same volume, right? Is there a disk encryption utility capable of doing this? I don't know much ...
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1answer
187 views

Secure distributed storing and querying of [medical] data?

Comparing ways of distributing and securely storing and querying structured and schemaless data. Currently I am using MongoDB, but am looking into (Postgres|MySQL)&CryptDB, Cassandra and others. ...
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2answers
292 views

Ubuntu LVM LUKS Encryption

I've been reading about Ubuntu LVM Encryption, and I understand that it supports the use of Linux Unified Key Setup (LUKS) during installation, which is a block level encryption that encrypts the ...
2
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1answer
299 views

Decrypting FDE in Disaster Recovery

I saw a hot network question on SE, about Workplace Ethics - Do I give my password at work to my old boss after quitting?. My initial response (as are the answers in that question) is always NO. The ...
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2answers
97 views

What is the security benefit of Per-File Encryption key architecture?

Are there any security benefits to having a different key(it is encrypted by a master key and that encrypted key is included in the metadata for the file) used to encrypt each file versus just one key ...
2
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1answer
553 views

Field-level encryption vs disk encryption for PCI compliance

We are in the process of setting up a PCI compliant server (with Firehost's help). We are using MongoDB as our primary database. I am having some concerns about the encryption, though. Are there any ...
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2answers
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TrueCrypt vs “native” whole-disk encryption on Linux?

When preparing to encrypt an entire partition, is it better to rely on "native" whole-disk encryption (eg following this tutorial), or an external tool like TrueCrypt? The wikipedia article comparing ...
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2answers
230 views

How to encrypt entire HDD without any password prompts?

Before you dismiss this as silly, let me explain :) The only purpose of this encryption is to make the data inaccessible if the drive breaks down and I want to send it off for warranty replacement. ...
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4answers
1k views

Is it possible to boot an encrypted server remotely and securely?

Imagine you have a server that is at a location which is not trustworthy. People might have physical access to the machine who are not supposed to look at the data stored on it. In this scenario I ...
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1answer
240 views

What does hardware full disk encryption imply?

I read the wikipedia article and few others, however I still don't have some things clear. The main question would be what does hardware full disk encryption imply for the user, however I have more ...
2
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1answer
219 views

Self-encrypting drives, certification for tamper-protection?

Consider a drive with Opal 2.0 support that works with Microsoft Bitlocker's "eDrive" feature. In this case, supposedly, the encryption key never leaves the disk (which might increase security, ...
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2answers
261 views

How to use ESSIV to avoid seeing repeated patterns?

I'm trying to implement an encrypted file-system. The file-system consists of 512-byte sectors. I encrypt/decrypt the contents of a sector as follows: Compute the SHA256 sum of the user password. ...
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2answers
87 views

Hardware Dependent Encryption [closed]

I am looking for a Linux based encryption system (like Truecrypt) that has the ability to do the following: Encrypt a partition or external drive that it can only be read from the same computer ...
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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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7answers
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Is there any asymmetrically encrypted file system?

Is there a file system providing a directory where everybody can write, but only the directory owner can read the files? In theory it could be done by encrypting using the public key while writing, ...
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3answers
1k views

Is it possible to prevent a physical attack on full disk encryption?

I've been researching into some methods to ensure that disk encryption keys can't be stolen, and one that I've come across is called TRESOR. With this kernel patch, you can create a partition that is ...
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3answers
2k views

Decrypting a Truecrypt system - how to make deleted files unrecoverable? [duplicate]

If I have full disk encryption on my computer and want to decrypt it, but want to delete senstive documents before decrypting, how do I ensure they are unrecoverable post-decryption? Edit: I suspect ...
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1answer
229 views

What is the strength of the key derivation function on Android device encryption?

What is is strength of the key derivation? Specifically, how many milliseconds or microseconds would it take a desktop computer to check a guessed password to see if it is a match? I am aware this ...
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0answers
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What is a self-contained cross-platform encryption for USB drive? [closed]

I'm trying to find self-contained encryption solution for USB drives while at the same time being platform independent. For example, Windows' BitLocker only works on Windows and not on OS X or Linux. ...
2
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1answer
52 views

“holding open” encrypted home with local ssh

I have a couple of machines that I use for purely automated stuff, with home directories encrypted using ecryptfs. So even if the machine is powered on, those directories aren't decrypted unless that ...
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2answers
569 views

What are the pros and cons of using yubikey with ssd hardware encryption?

I'm considering trying out yubikey and I've recently discovered that the (crucial m500) SSD I recently bought supports hardware encryption. I think it should be possible to use a yubikey to provide ...
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1answer
150 views

physical access proof smart card for disk encryption [closed]

Current full disk encryption on mobile devices rely on low entropy passwords like PIN numbers or pattern locks. Being able to use a smartcard with such mobile devices is a tempting idea. I know that ...
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1answer
257 views

Is it possible for me to extract my own AES disk encryption key?

I use Check Point Full Disk Encryption, but hope that this question can be answered generally. Is it possible for me to get, or extract, my own 256-bit AES key? By the way, I don't use any special ...
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1answer
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loop-aes or dm-crypt for linux hard encryption?

loop-aes and dm-crypt are both used by partman-crypto for linux hard encryption, but dm-crypt needs no patch to kernel and is more supported. dm-crypt keeps it's key on first hard block, is it a ...
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4answers
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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. ...
7
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1answer
204 views

Is there a way to put a self destroy password on Ubuntu disk encryption?

Is there a way to put a self destroy password on ubuntu disk ecncryption ? Or self destroy after n bad password attempt ? When someone ask you to entre the password, you can enter the "self destruct" ...
0
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1answer
342 views

Read-Only USB thumb as Linux boot encryption authentication [closed]

I would like to have a physical key to decrypt Linux machines at boot. This is just an idea and I would like to know if there are already projects or established methods to achieve this. Let me ...
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1answer
110 views

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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4answers
414 views

How do you guarantee that you don't lose a keyfile?

I am toying with the idea of adding keyfiles to various things that I encrypt. However what's been keeping me from adopting them is guaranteeing that I don't lose the keyfile while still keeping ...
3
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1answer
851 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 ...
2
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1answer
381 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 ...
2
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1answer
85 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
783 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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4answers
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How effective is iPhone 3GS and 4 device-at-rest encryption?

My primary goal is to protect Activesync-based communication from being copied or stolen from an offline device. In that context how effective is iPhone 3GS and 4 encryption?
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2answers
159 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 ...
8
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5answers
803 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) ...
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2answers
583 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 ...
9
votes
3answers
643 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 ...
2
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2answers
344 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
136 views

Formatting before encrypting [closed]

Is formatting a device before encrypting more secure as opposed to encrypting the device without a formatting?
25
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5answers
7k views

What does Amazon's S3 Server-side encryption protect against?

Amazon's S3 storage service offers server-side encryption of objects, automatically managed for the user (Amazon's Documentation). It's easy to enable so I'm thinking "why not?", but what kind of ...
5
votes
5answers
701 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 ...
3
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2answers
398 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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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 ...
5
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2answers
761 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 ...