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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SSD encryption - is it reliable? Should I look at specific SSDs? Should I use TrueCrypt? How does it work?

Since using VeraCrypt + free cloud storage is not a good idea, I'm thinking of just buying an SSD and be done with it. However, I'm worried that they their security is breakable with some effort, or ...
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74 views

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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0answers
14 views

How to disable DMA port in windows 7? [migrated]

I want to use bitlocker. For security reasons (Direct memory access attacks), I want to disable FireWire Thunderbolt ExpressCard PCMCIA PCI PCI-X PCI Express Ref: Types of Attacks for Volume ...
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2answers
122 views

How can the Equation Group HDD firmware malware help bypass FDE?

There is currently a lot of discussion going on across the Internet about the "Equation Group" family of malicious hard disk drive firmware. One thing that has me wondering is the claim that ...
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1answer
25 views

How to handle disk encryption for remote connection?

I have at my workstation, an ubuntu 14.04 installation with full disk encryption. I now have to travel frequently for days and am planning to ssh into this machine from my chromebook to work remotely. ...
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45 views

Disk level encryption + compression performance?

What are pros and cons for using disk level encryption like VeraCrypt and then turning on compression on mounted (virtually decrypted) drive? It seams to me that this can even increase some ...
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1answer
66 views

Hashing algorithm for cryptsetup

I will encrypt my SSD using cryptsetup and I would like to know which hashing algprithm to use. First of all, cryptsetup benchmark: PBKDF2-sha256 262144 iterations per second PBKDF2-sha512 ...
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1answer
42 views

Securing Data at Rest in Android

Here's a situation. I am the author of an app that allows my customers to stream videos on their local android device. I also allow them to download the video and store it locally on their android ...
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2answers
44 views

Full Disk Encryption, Single User System: User/Root Passwords required?

Are there any security issues of having no (or weak) passwords for user and root account on a single user system with full disk encryption (except boot partition)? Assuming no SSH server is running, ...
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3answers
227 views

Is AES 256 secure enough for putting Backups to AWS or Dropbox?

How long would it take with current hardware to hack an Disk Image which was encrypted with AES 256? I ask because i want to backup personal files (contracts, tax-things, code, keys, private ...
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2answers
301 views

Trusted Platform Module, daughterboard vs onboard TPM?

In many cases where a Trusted Platform Module (TPM chip) is employed, it is soldered directly onto the motherboard. Ostensibly the motherboard manufacturer is then solely responsible for integrating ...
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32 views

can we do the full disk encryption of a already installed Linux machine? [migrated]

I need some information regarding any possibility to do full disk encryption for a already installed Linux system(e.g centOS or Ubuntu). Is there any default mechanism for FDE present in Linux like ...
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2answers
80 views

What options exist for authenticated full-disk encryption?

Title says it all really. I'm toying with the idea of storing some disk images in "the cloud", but am concerned about the possibility of an attacker manipulating cipertext to do evil things once it's ...
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0answers
19 views

Storing LVM encryption key on network share [migrated]

I want to encrypt all my LVM LV's and have them automatically unlocked on boot using a keyfile available on my network. I can make the files available by SMB, NFS, HTTPS, etc. I have Ubuntu Server ...
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0answers
205 views

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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2answers
107 views

Is my data secure in locked screen if I use bitlocker

My SSD is currently encrypted by bitlocker right now. So let say if I leave my laptop on locked state (Win+L). Is it possible for someone to get access to my data? Few thing I noted are: If someone ...
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1answer
40 views

What's the value of data partition encryption for database files on a postgres database server?

We're in the process of rolling out a postgres based web app, and I'm trying to understand the value of encrypting the entire database. In postgres's case, the only way to do this is store the ...
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1answer
48 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
114 views

Why my files that Encrypted with EFS in Windows 8.1 shown in Linux ubuntu?

i Encrypted my files with EFS in windows 8.1 so i logged in ubuntu and without any warning , its shown my files actually not Exactly the file but shown the path of file and the name and i can ...
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2answers
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BitLocker Drive Encryption NOT secure from drive mapping on network

I have a USB drive encrypted with BitLocker Drive Encryption. Each time I insert the drive in my USB port it works as expected, requires me to enter the password. Maybe I have the BitLocker Drive ...
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2answers
94 views

Initialization of a LUKS encrypted partition with cipher or /dev/urandom

I've created a few encrypted devices with LUKS and cryptsetup on Linux and am pretty comfortable with disk encryption in this regard. I've seen it mentioned in many different places that when setting ...
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0answers
2k views

OPAL Hardware Encryption [closed]

I recently bought a laptop which has OPAL compliant Self encrypting hard drive. I wanted to know how I could use/check the status of the Hardware Encryption features of an OPAL drive (windows, linux ...
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4answers
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How does Android L achieve strong encryption with a low entropy passphrase?

After upgrading to Android L on my Nexus 5, I was pleased to find that I can enable encryption using a pattern as the passphrase. However, it soon got me thinking. I'm guessing the encryption key is ...
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774 views

Encrypting tails USB boot disk (preeboot password on live)

To use tails, I have always used a DVD, because of the fact I know it will not be tampered with, at least within reason. However there are endless reasons why a USB boot option would be faster, and in ...
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4answers
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VeraCrypt/TruCrypt - I can't understand why you'd want to create a “hidden” volume…?

I can't think of a reason as to why you'd want to create a hidden volume in VeraCrypt. It says because "you may be asked to hand the information," but why would I need to hand it over? Nobody has any ...
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1answer
83 views

Ease of Getting Data On Self-Encrypting Drive From Screen-Locked Windows 7/8 Computer

Hypothetical: a Windows 7 or 8 computer has a self-encrypting hard drive. It is stolen with the power on, but with the Windows lockscreen on. Are there easy off-the-shelf ways to access the data on ...
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2answers
136 views

LUKS, how to make strongest possible and reasonable passphrase?

Let us say I have a volume encrypted under LUKS with a 512-bit key. That would mean there are 2 ^ 512 possible values which the key may be. Now I need a passphrase which is at least as resistant to ...
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117 views

Mitigating the LUKS decryption key residing in RAM for FDE

I've come to find Full Disk Encryption to be a rather unsafe method of securing data as standardized tools are becoming available to just read out the encryption key from RAM, where the system needs ...
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1answer
73 views

On my MacBook, is my user password now the Achilles heel of disk encryption?

From a cold boot, the only password needed to unlock the primary encrypted volume on my MacBook's SSD is just that of my main admin user. This was not always the case; it used to be that I could ...
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4answers
264 views

How to protect against adversaries snatching booted laptops to defeat full disk encryption?

I read an article describing how FBI agents snatched Ross Ulbricht's laptop while it was running to defeat full-disk encryption: Two plainclothes FBI agents, one male and one female, walked up ...
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3answers
5k 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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2answers
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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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132 views

Would encryption of RAID6 arrays of SSDs be secure?

Given the uncertainty about data being left in the clear, I've hesitated to use SSDs where I need full-disk encryption. While some SSDs employ hardware encryption, they're quite expensive, and there ...
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4answers
2k views

Samsung SSD 840 Evo Disk-Encryption

My question relates to the hardware encryption of samsungs 840 Evo SSD (maybe also other models): The theory: Samsung specifies that their SSD encrypts each data with AES by default. So if I choose a ...
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2answers
2k views

Is Truecrypt still safe? [duplicate]

I want to fully encrypt a disk on Windows 7, but I don't trust Bitlocker and Truecrypt has announced it is not safe (also many rumours about NSA being able to decrypt it and it's better to avoid it). ...
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310 views

Debian encryption is as safe as Truecrypt. Is this correct?

When I try to install latest debian to my pc, the wizard ask me to input a password to do FDE(full disk encryption). My questions are: What algorithm does Debian use? (Truecrypt = AES) Can I change ...
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89 views

Where to store passwords of encrypted backup drives

I have all my backup hard drives encrypted with LUKS. Currently, the passphrase is some 25+ random password that I store in my password manager KeePassX. Since I have the backup drives for the case ...
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3answers
96 views

Read encrypted hard-drive after extraction from running computer

If someone unplugs the hard-drive of my laptop while it's running, what contents would they be able to extract from it? I understand that on login, the image of my hard-drive is mounted, but I'm ...
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2answers
201 views

LUKS nuke efficiency

I am wondering about LUKS nuke patch efficiency. In fact, I think I don't really understand it. From what I know of LUKS, a passphrase is used to encrypt a random key (the master key), which is used ...
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Is BitLocker on a virtual machine still FIPS 140-2 compliant?

BitLocker can be used as a cryptographic module to fulfill FIPS 140-2 security level 1 compliance. In a common setup, USB thumb drives can be used to unlock drives encrypted by BitLocker on startup. ...
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2answers
8k views

Is there a reason to use TrueCrypt over VeraCrypt?

I am looking to encrypt a few drives of mine, and my ONLY interest is security. It is OK if my VeraCrypt volumes are not compatible with TrueCrypt, and vice versa. There is a lot of talk about ...
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6answers
15k views

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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3answers
157 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
141 views

How does this implementation of full disk encryption work?

I have a laptop that has Sophos Safeguard full disk encryption on it. I booted the machine into another operating system on a USB stick and attempted to read the disk from the other OS, and I verified ...
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0answers
27 views

How do I start securing a virtual appliance to avoid manipulation? [closed]

We have created an amateur software product related with monitoring and management of specific services. It has been made in Python and runs a web service as frontend to show the data in a nice way ...
2
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1answer
577 views

TrueCrypt VS LUKS Bruteforce Resilience

I have been researching LUKS vs TrueCrypt topics -- my only concern is security, but most of the discussions I see focus around usability / interoperability . I know TrueCrypt has a bunch of nice ...
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158 views

Trust level of whole disk encryption software

For example, if we take this software into account: Symantec Endpoint Encryption Sophos Safeguard Encryption How can we trust suppliers of whole disk encryption software in the lights of the ...
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Moving /boot to USB and Preventing booting from other USB devices (Allow boot from only one USB)

I'm going to move my /boot/ folder to a USB to as a security measure to protect against Full Disk Encryption exploits. My question is, is it possible to only allow boot from USB from a single USB ...
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1answer
2k 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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115 views

Mcafee endpoint encryption doesn't see previously encrypted partition after Windows 7 reinstallation

My partitions C and D were encrypted and Windows 7 was installed on C. I copied all important files to D and then changed harddrive controller from IDE to AHCI, removed C and created it again and then ...