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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Can software keyboard add security to decrypting FDE'd Drive

Having a LUKS Full Disk Encrypted Linux installation means that I need to input my decryption password before the Operating System can even start. This will require me to use a hardware keyboard on ...
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1answer
52 views

What does “8.11 Encrypt or sign files into an archive” do?

I am going through the GnuPG manual and I want to encrypt a folder which, if my laptop was taken by anyone else, noone would be able to get access to for any of my information. This man page gives me ...
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0answers
17 views

How to encrypt a USB to be used with MAC & Win

I would like to find out if it is possible to encrypt a USB flash drive (or only password protection) which could work with dual OS ( Mac & Windows ). Is there a free software that i could use to ...
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4answers
564 views

UEFI and security implications for encryption

After my old PC kicked the bucket I now own my first UEFI board and I am already having trust issues. I utilized Truecrypt's system encryption for years now and really got used to it. My new board has ...
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2answers
32 views

What parameters do I give cryptsetup?

I want to have an encrypted partition on my SSD. Benchmarks (a 100 samples of 100MiB each): Average read speeds: 418 MB/s Average write speeds: 386 MB/s # Tests are approximate using memory only (no ...
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1answer
89 views

How well does FDE protect against disk firmware malware?

In early 2015 news broke that the NSA was installing firmware backdoors in many hard drives. I was wondering, if there was a BIOS and Hard Drive backdoor how well would full disk encryption protect ...
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1answer
193 views

How to wipe disks before encryption with dm-crypt if CBC or XTS is used internally?

First, please forgive me if I'm posting this question to the wrong community. Feel free to migrate this post to the right community if I was wrong. I'm quite new to whole disk encryption (but not ...
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3answers
141 views

Is it possible to retrieve flash-based encrypted disks content (SSD, cellphones, USB sticks, …) after password wipe/replacement?

I have crossed such assertions a few times on this site: One benefit of full-disk encryption is that it makes wiping the flash storage very fast.[...] To wipe the entire drive, all you have ...
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4answers
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How To Recover EFS Cert From Backup?

I made a backup of the old Win 7 Pro then did a clean install. But I forgot to export my EFS encryption certificate, so when after I restored the encrypted files from backup I could no longer access ...
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1answer
77 views

What happens when a TPM chip breaks or fails?

I read that a TPM (Trusted Platform Module) has some sort of burnt in key that it uses, along with the password you provide, to encrypt your data. The point is that you cannot decrypt your Hark Disk ...
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1answer
132 views

What excactly is encrypted by “full disk encryption” on Android 5?

This page says "user data" gets encrypted. But that implies it's only a certain part of the full disk? Like "/data" or something? Can I copy a file from a PC to the internal storage to any place and ...
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4answers
294 views

Hardware encryption for flash drives

Could someone tell me the difference between hardware encryption and software encryption? (With regards to flash drives, if it makes any difference). From what I understand, software encryption is ...
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1answer
91 views

How to crack encrypted disk (crypto-LUKS) in an efficient way?

I had a disk encrypted by crypto-LUKS but forgotten password. I read a question posted here. LUKS HDD Encryption crack But before that I want to know if there's some free software I can use to ...
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1answer
44 views

Disk encryption with OTP to protect source code

We have to ship a hard- and software prototype to a customer for a first field test. The software is just not ready (protected - too much Python code) for distribution without the possibility, that ...
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0answers
59 views

Can I use disk encryption and track my device at the same time, in case it's stolen or lost? [duplicate]

I would like to encrypt a single user profile but have been told EFS isn't the solution. I have a laptop that I leave in my bag and use for work and private purposes. I want to secure data in case my ...
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3answers
175 views

Are there risks associated with a strong password reuse for disk encryption?

I understand the risks of password reuse when we share the password with 3rd parties as perfectly discussed under this question: Is password reuse a problem if the password is very strong? However I ...
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2answers
60 views

What is the use of TPM-based Bitlocker if the drive gets decrypted automatically?

I am using Bitlocker which uses a TPM to unlock the drive. My question is, although TPM provides security against tampering, how is it useful in defending against attacks that involve physical access? ...
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1answer
92 views

Made my password a few characters over the 64 character count and can't mount

I can't enter my full password here (the screenshot) since veracrypt limits character count to 64 and my pass is 66. Is the data on the drive recoverable?
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41 views

Password guessing attack on file from SSD [closed]

I got the following scenario: a SSD self-encrypting drive (to be precise: a Samsung MZ7PD256HCGM) is encrypted using McAfee full-drive encryption (Opal 2.0 standard). I have a (relatively small) file ...
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2answers
87 views

How to forget LUKS keys during emergency?

One day, while Alice is downloading some photos from Bobs server, the alarm goes off. Trudy came to steal all the data. Fortunately, the server is setup to shutdown upon server room alarm and has ...
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1answer
101 views

Can you extract the encryption key of a computer with full disk encryption via malware?

I recently discovered the subject of cold boot attacks which are able to extract the encryption key of the ram memory after the computer has shut down. and from what I understand is that law ...
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1answer
83 views

Is using trim on a ssd with LVM LUKS safe?

I know that it can allow an attacker to know the filesystem and file size, but can it allow an attacker to decrypt any files?
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1answer
178 views

How to enable OPAL SSD encryption on Windows without BitLocker?

A lot of SSDs now implement OPAL-compliant AES hardware encryption, which seems to be the only option to get full-disk encryption on modern PCs without buying the (very expensive) Windows 10 Pro ...
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1answer
181 views

Right way to use the TPM for full disk encryption

I'm currently setting up a BitLocker equivalent using a TPM and LUKS. I've got the basics right and I'm able to measure the boot process and seal the FDE key using the TPM. Every time the sensitive ...
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0answers
36 views

Veracrypt, encrypting program files

So I have a small 24GB SSD as C: which contains windows only and a HDD as D: that contains program files and personal data. I installed veracrypt onto the D: drive. I did a system encryption on C: and ...
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2answers
552 views

Using FileVault on a Mac with existing data

I have recently got a Mac which I have started using already without any encryption while looking for the best solution. I have come to the conclusion that using Mac's own file encryption technology ...
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2answers
82 views

Lock down OS to specific hardware device

I know everything is reversible. But how could I lock down an instance of linux to a specific hardware device? Possibly tying the filesystem to a specific serial number on the board for instance.
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6answers
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How secure is NTFS encryption?

How secure is the data in a encrypted NTFS folder on Windows (XP, 7)? (The encryption option under file|folder -> properties -> advanced -> encrypt.) If the user uses a decent password, can this ...
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1answer
79 views

What medium for storing full-disk encryption keys is easy-to-use as well as easy-to-destroy?

If I were to frequently work on sensitive data on a LUKS partition and wanted to be able to quickly destroy the keys to it, I figure it would make sense to— encrypt that partition with a key file, ...
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41 views

Unable to view USB Hard drive contents after lock(read-only access)

My work laptop has PGP Desktop 10.3 and when I connected my USB flashdrive it prompted me to Encrypt or Lock. Given the information on both of these options the only choice I had in order to access ...
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27 views

Symantec Encryption Desktop not recognizing 3 Tb drive properly

I'm attempting to encrypt a new 3 Tb hard drive (Western Digital My Passport Ultra) using Symantec Encryption Desktop (formerly PGP Whole Disk Encryption) v. 10.3.0 in Windows 7 64-bit. I've used it ...
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1answer
54 views

How can AES-CBC be used for LUKS encryption, when the ciphertext is not static?

In CBC mode of operation, ciphertext from previous block is used as IV in next block. How then can AES-CBC be used for disk encryption (LUKS), when the data on the disk (ie the ciphertext) keeps ...
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Is there readily available encryption algorithms for current computers, that is safe from quantum computers?

Is there readily available encryption algorithms for current computers, that is safe from quantum computers? I know a bunch of currently popular encryption algorithms that are safe from current ...
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What is the best practice to secure an unattended Raspberry Pi?

I'm working on a project which involves mounting a Raspberry Pi on a self-moving vehicle. I'm looking for the best way to encrypt the Pi (entire file-system, swap, etc.), with the minimum possible ...
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1answer
204 views

Can Windows BitLocker encryption be broken by Live Boot?

I have a Windows system and I protected the drive with BitLocker encryption. Can BitLocker encryption be bypassed by live-booting with Linux or any other OS?
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1answer
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Methods of cold boot attacks in the wild

As far as I know, there are two methods for performing cold boot attacks: Reboot the system into an alternate operating system or BIOS with a minimal memory footprint which automatically exports ...
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1answer
445 views

How to encrypt an entire portable HDD, so that it cannot be read/written without the password for it?

I use a portable USB drive (Seagate FreeAgent Go Flex) to keep all my personal stuff, and though the HDD company does offer a password scheme to control access to it, that would work only on windows, ...
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1answer
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Linux, TRESOR and XTS

I want to switch from using LUKS for full disk encryption to TRESOR. TRESOR tries to prevent cold boot attacks by storing the encryption key in the CPU's registers. It uses the kernel's crypto API for ...
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1answer
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How does the MFT encryption work?

A few week ago there was a ransomware called Petya delivered via Dropbox links. The new ransomware is inserted into the master boot record (MBR) of the victim's computer, and the system restarts. On ...
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Linux Plausibly Deniable File System

Is there any way to encrypt a linux filesystem in such a way to maintain plausible deniability? E.g. "Hidden OS support," the way Truecrypt and Veracrypt work, they only support Windows OS due to low ...
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180 views

Server full disk encryption protection from malware

A group of LINUX servers is using dm-crypt to encrypt data. The servers do not store data long-term but are only temporary stopping points for data before it is sent to other systems. The time the ...
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1answer
47 views

Break encryption by applying accidental-overwrite techniques

I read that there are ways, at least on mechanical drives, to sometimes recover data that was overwritten (not just deleted). Now I was wondering if it was theoretically possible to break a fresh ...
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2answers
148 views

How can I extract the encrypted master key from LUKS header?

I know that a LUKS partition has a plain-text header that stores many informations like master key (MK) digest, MK iterations of PBKDF2, information about the 8 key-slots etc. I also know that in the ...
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2answers
383 views

Laptop tampering and boot loader

I try to find out how far I can secure my laptop from physical access and tampering attempts. Setup: ThinkPad with Linux installation What I have done so far: disk encryption using cryptsetup for ...
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1answer
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Method for securely removing files from a solid state drive

I've thought of a method for securely erasing single files on a solid state drive. This method will work only if the drive is encrypted, and it will work even if someone cracks the encryption key for ...
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2answers
243 views

How secure is a BIOS/UEFI hard drive password? [duplicate]

I'm buying some new machines and am concerned about security of the data should the machine be physically stolen. It's easy to take out the drive, image it, and read what you want. I could use file ...
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4answers
2k 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
207 views

Android full disk encryption

I am using Android 4.4.4. There is an option called phone storage encryption. From what I have read the crypto is secure. However, I read this article which said Google is able to reset passwords: ...
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What FDE (with hardware encrypted drives) for OS X works?

I'm trying to get all of our laptops doing FDE (as I'm sure lots of you are), and I've run into a problematic spot. Our Windows and Linux laptops are Dells, and they have some good BIOS integration ...
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1answer
266 views

Does LUKS actually fully encrypt data on a disk?

Why does TrueCrypt and similair applications take hours to fully encrypt a 1 tb drive, while luks takes a few seconds? Sorry if this is a dumb question, but I don't fully understand how that works.