Questions tagged [disk-encryption]

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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Protecting a pass-phrase with the TPM and associating it with a file state

Is there a way to associate the state of an arbitrary file to a tpm2 PCR value? I want to seal a secret pass-phrase onto the tpm and I want the tpm to be able to unseal it only if the file is not ...
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What are the disadvantage of only encrypting the HDD compared to FDE with secure boot

I read How secure are most FDE implementations? What are the disadvantage of only encrypting the HDD compared to FDE with secure boot. If I encrypt a disk in a running server, and someone gain access ...
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Using Hardware Encryption on NVME SSD used as the boot device

I have a question relating to implementing encryption of data at rest. This is possibly more suited to another stackexchange site, so please let me know where would be better to post if I'm a little ...
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How is PlayStation (4/5) protected from disk-copying piracy?

It just doesn't make any sense to me. Any owner of a original PS game disk has full access to it, so it shouldn't be a problem to create an identical disk, isn't it? And PS won't be able to tell apart ...
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How good/bad are these transparent Linux consumer FDE setup options? (e.g. for auto-unlocking LUKS)

UPDATED Summary: I'm looking at Linux FDE options that are transparent to the user (my parents) in that the user doesn't need to enter 2 passwords. I found/thought of several options and tried to ...
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Is LUKS still an effective option for consumer FDE considering Elcomsoft can break it?

I use Fedora Linux and was recently looking into doing Full Disk Encryption on data drives such as /home on some of my / my family's PCs. I understand that LUKS security will be partially dependent on ...
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Difference between Disk Encryption and Volume Encryption?

I'm trying to understand the different between disk encryption and volume encryption, more specifically as it relates to SAP HANA, link here. From my understanding Disk Encryption prevents the threat ...
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SQL Column encryption can be part of Data at Rest?

I have a SQL database and I have enabled the Always Encrypted feature. Can I claim that Data at Rest is fulfilled? or do I have to secure the backup files using certificates to claim that our database ...
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Linux/LUKS/Full Disk Encryption: How can I mitigate SSD/flash media security security risk caused by unreliable physical deletion?

Firstly, I do not think my question is answered by SSD full disk encryption as I am not looking for a binary "is FDE secure" - nothing is perfectly secure; rather I am looking for possible ...
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How does Bitlocker Drive encryption work and which info are sent?

I'm looking forward to discovering more about the way in which USB devices encrypted with BitLocker are protected. If I insert a USB key encrypted with BitLocker on a different device, I can access ...
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Can a custom built CPU break hard drive encryption?

While a hard drive is decrypted on boot up, can the original phrase be intercepted at some comparison calculation step by a specially built CPU or is there some higher math involved? This would be ...
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How can I protect browser cached files to be accessed in a case of a stolen hard drive?

For the usual reasons we want to cache certain resources browser side, e.g. list of products bought in the past. Context is a web application, accessed via the internet. This list is confidential in ...
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Security against local attack for remote FDE decryption?

Is there any remote FDE decryption that is resistant to an attacker that has local physical access? Tools like dracut-sshd need to store the private key used for the sshd server on the unencrypted ...
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How can I store and manage my GPG key pair securely?

I've taken measures and thoughts on how to securely store and manage my key pair. In the process of it a few questions arose, which I'm not capable of answering yet. My key pair will be used to ...
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Why would you use random algorithm for CSFLE if you can't query the inserted data?

I think I really misunderstand something about data encryption. This guide (https://docs.mongodb.com/manual/core/security-client-side-encryption/#randomized-encryption) says the following: "...
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Is it secure to automatically unlock encrypted system drive using the TPM PCR values?

A simple way of automatically decrypting system drive at boot time: clevis luks bind -d /dev/yourdrive tpm2 '{"pcr_ids":"4,5"}' systemctl enable clevis-luks-askpass.path When I ...
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Recovering files with recovery key after double FileVault activation - is that possible?

Let's imagine I have a work macbook with ssd and I use FileVault, and the company has the FileVault recovery key. I want to make sure my data is erased and unrecoverable, what is the best way to ...
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Can I use VeraCrypt with an SSD?

I recently got Windows 10, and I am not overly thrilled at Microsoft having a copy of my password on their servers. I will also be forced to make a hotmail account, instead of just using a local ...
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How to best prevent data recovery on a disk drive without physically destroying it? [duplicate]

The recommended way of ensuring that data on a hard disk cannot be recovered is to destroy it physically, for example using a hammer, drill or even thermite. Question When physical disk destruction is ...
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Bitlocker TPM + PIN vs pre-boot DMA attack

In this link there are talks about pre-boot DMA attack: https://eclypsium.com/2020/01/30/direct-memory-access-attacks/ If the user would have a Bitlocker TPM + PIN enabled, would an attacker with a ...
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Samsung Galaxy Note 10+ 5G - cellebrite mobile forensics data extractions - locked with pattern

I've got a locked Samsung Galaxy Note 10+ 5G (running the latest android 10 and patches) The phone is locked with a pattern (unknown) What are my chances of any data extraction with cellebrite or ...
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Can M.2 docking stations be used to make forensic images of (Bitlocker encrypted) M.2 disks?

I am looking into M.2 docking stations such as the Maiwo K3016S as shown below. Is it possible to use such docking stations optionally in combination with a USB- or software write-blocker, in order ...
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Can I safely disable and re-enable Secure Boot when Bitlocker is used in order to make a Forensic Image?

I am about to make a forensic image (using dc3dd from OSFClone) of two laptops and in this specific case I'd like to startup using an bootable USB stick with OSFClone and image the disk to an external ...
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Installed TPM, how to use BitLocker without USB key?

I have a Windows 10 computer with 3 hard drives: Samsung SSD 850 EVO 1TB (SSD, system drive where Windows 10 is installed, not encrypted yet) First 3 TB HDD already protected by BitLocker Second 3 TB ...
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Is disk encryption (e. g. LUKS) reversed when having an encrypted disk image inside an encrypted partition with the same encryption password?

Let's assume one has created an encrypted partition, e. g. with the LUKS standard. Then one creates a (virtual) disk image, e. g. for use by a virtual machine, containing an encrypted partition ...
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How do I use hashcat to recover password from ata drive lock

How would I get the password for encrypted SSD's I bought (legally bought from a business who forgot the password, I plan on wiping them after I unlock them) I am new to using software like hashcat, I ...
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Is native OpenZFS (on FreeBSD) block-level encryption secure?

I am considering using OpenZFS on FreeBSD. I am not quite sure how secure native OpenZFS encryption is? If somebody steals my server and the disks, is he able to decrypt the files? In a Discord room I ...
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Are there known escapes to get disc access when a Bitlocker-encrypted password is locked at the Windows login screen?

So on a bitlocker-encrypted single drive on a laptop, if the laptop is booted and waiting at the login screen, is there a way to escape from here to get disc access, possibly excluding that of ...
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Is a password-protected stolen laptop safe?

Let's assume I have a Windows 10 computer and my login password has an entropy of infinity. If I did not encrypt my entire hard-drive, does it matter how secure my password is? Is it possible for ...
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Asymmetric Encrypted Container

I'd like to set up a remote backup for my PC. I want to have it run at scheduled times, encrypting the data locally and then transmitting it to the server. I'd like to use something popular and open ...
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How to have full drive encyption that is unlocked while a USB device is plugged in?

I'd like a solution that autounlocks Bitlocker, VeraCrypt or similar FDE on Windows 10 while I have a device plugged in. When it's not plugged in (or I lose/destroy the device) it should just ask for ...
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Encrypted data at rest when decrypted

I was reading about encryption and had a question about it in general. If I have a laptop with an encrypted SSD which I decrypt on boot up, it means it is all in plain text/data right? If I do a hard ...
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Is it safe to have 2nd SSD with dangerous software? (disk encryption of the first drive turned on)

Currently, I'm using 1 SSD and I think it's safe. I'm thinking about using 2nd SSD for unsafe software (pirated software). Is it possible that the virus on the 2nd drive can reach the 1st drive, ...
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Drive with deniable encryption and multiple independent file systems

So I read this question about deniable encryption but it left me with a few questions. The first answer describes how you could hide one file system on a drive. The process goes like this: Fill the ...
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Why is it possible to bypass Android full disk encryption?

If you look up how to bypass the Android lock screen, there seems to be endless examples. plug the phone into your PC, use ADB (Android debugging tools), disable the lock screen forgot password ...
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Can I completely wipe an SSD using encryption?

My system drive on my dekstop is a Sandisk SSD, with default encryption through Bitlocker not enabled. My PC doesn't have a TPM. I want to completely wipe the SSD data in order to make it ...
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Entered FDE password in GRUB by mistake

For several reasons (I have an external monitor, etc.) when I booted the laptop I typed the FDE (Full Disk Encryption on Linux, LUKS) without looking at the monitor, and I ended up typing the full ...
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Defending against key recovery from RAM attack

After reading an article from a forensics software company. I'm worried about attacks that may be able to recovery the OTFE(on-the-fly encryption) key of VeraCrypt from RAM. Thereat model: On Windows,...
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Is a BIOS password enough to prevent someone from hacking into my laptop if they have physical access?

Would my laptop be secure against physical access if I set up a bios password and full disk encryption ? If not then is there any way to secure your laptop from someone with physical access? How hard ...
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How is the Veracrypt decryption speed faster than simply duplicating the same data?

I'm thinking of installing Veracrypt and I read that it takes Veracrypt about 5 minutes to decrypt a 500 gig SSD. How is this possible? It takes me much longer to duplicate the same 500 gigs on my ...
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What is the name of the crypto system used by ICANN's DNS recovery system?

I once heard about a type of crypto system that behaves in the following way: I have x secret keys that work together to decrypt messages encrypted with a public key d. If I get at least n of the x ...
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How safe is dm-crypt/LUKS? Would TPM make me more secure in this case?

I’ve been looking to purchase a new laptop and I need to have security in mind. I’ve specifically been looking for laptops with discrete or integrated TPM because it’s been my understanding that TPM ...
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ZFS on LUKS2 encrypted device: LuksFormat with or without dm-integrity?

Does it make sense to combine ZFS with LUKS2 for completely random-looking encryption on HDDs ? (Without luks-header on the disk of course, header placed elsewhere). The goal is to make a HDD really ...
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Decrypting a BitLockered USB drive [duplicate]

I have encrypted a USB drive with BitLocker and I have lost the password and the hash backup. I have tried to search for something to decrypt the drive but came short. I have imaged the USB drive and ...
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Why doesn't the PIN become part of the encryption key in bitlocker with TPM?

I have read here that if you choose TPM + PIN protection the PIN does not become part of the key, it is simply used by the TPM as an additional security measure. It doesn't make sense to me, it would ...
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How secure is BitLocker without TPM?

My laptop doesn't have TPM. If I enable BL PIN and someone steals my laptop and remove the drive, will they be able to read it's content on another computer? How am I vulnerable without TPM?
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TPM & Windows BitLocker: how does it work and is it secure?

When starting a BitLocker-encrypted machine with a TPM and Windows 10 installed, you aren't prompted to enter a decryption key. The system relies on Windows lockscreen for authentication instead. My ...
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Aren't keyfiles defeating the purpose of encryption?

I just added a drive to my system which is basically a partition mounted for extra storage. I'd like to encrypt it to protect my data in case of god knows what, and by doing that I'd need to enter the ...
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Is it possible to adjust the header size in eCryptfs?

If I understand it correctly, eCryptfs creates a file in the "lower" directory whose content is a header, plus the encryption of the file in the "upper" directory. But when I create an empty file in ...
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How I can encrypt Windows if I use a SSD and HDD?

I need to encrypt my Windows Disks with full disk encryption. Windows is already installed and all drives have data. My Drives/Disks: 1 SSD - C: drive 1 HDD - D: drive and I have a drive where Linux ...

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