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Questions tagged [encryption]

Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.

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Is there a way to encrypt mail password when configuring mail notifications using postfix?

I am able to configure mails using postfix in ubuntu.I followed the below link to do so. https://documentation.wazuh.com/current/user-manual/manager/manual-email-report/smtp_authentication.html But I ...
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3k views

Is a password manager better than an encrypted file for storing passwords? [migrated]

For any passwords other than websites I log into regularly (such as Gmail, Facebook, etc.), I use apg to generate a random 20 character password. I then add that password and a username or email ...
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1answer
22 views

Efficiently mix encryption and rsync on an external drive? [duplicate]

I have an external hard drive that contains several folders. The largest of these folders is a backup that I often update by rsyncing the relevant folders from an encrypted (via Ubuntu's ...
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1answer
45 views

key file for linux home encryption?

I was surprised to discover, after considerable searching, a particular use case for data encryption is hardly or never discussed in the Linux community, much less readily supported. This case is to ...
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1answer
37 views

How can I do asymmetric encryption on the command line, without relying on installed keyrings, etc.?

My home computer consists of a VMWare host running Linux Mint, and a number of VMWare clients. I run backups every night that compress my VHDs to a removable hard drive. I'd like to encrypt the ...
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13 views

Privately synchronising calendar files between platforms

Introduction I would like to be able to maintain a calendar privately, using offline calendar applications on both my Android mobile and Windows/Linux desktop computers. I understand that cloud ...
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1answer
31 views

Change partitions' labels only on Dolphin or change label on not mounted LUKS partition

I have an encrypted LUKS partition, on Kubuntu such partition has to be displayed like "831.5 GiB Encrypted Drive" and cannot be changed. When you mount it and put the password it appears a new entry ...
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28 views

Workflow to encrypt files I use in a text editor

People say it is a good idea to encrypt your file system and/or encrypt files. I'm wondering how I do this with Sublime Text editor. I'm wondering if I need to do this, essentially: Encrypt all files ...
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1answer
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How can Windows boot with Bitlocker after clearing the TPM?

After installing Windows, I turned on Bitlocker for a full C:\ drive encryption. I saved the recovery keys and then let Bitlocker proceed with encrypting the full drive. When I rebooted, I was ...
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1answer
28 views

Files downloaded from OneDrive encrypt my hard drive

I have some files on my OneDrive. If i download them to my hard drive, my whole hard drive gets encrypted after a couple of hours. This only happens with files coming from OneDrive. I tried Kasperky ...
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1answer
24 views

How to know what type of security a particular Wi-Fi is using, without connecting?

As we know, Wi-Fi APs can make use of different encryption schemes such as WEP, WPA, and WPA2. How can we detect this without connecting to the AP? In other words, I want to know that what type of ...
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Can't upload public PGP/GPG key to OpenSKS server

So I have an Intranet that won't be connected to the Internet when in use, and one of the functionalities I need is the ability to send and receive encrypted emails. I chose to use an OpenSKS server ...
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How to strengthen the keepass master password?

Is it safe to strengthen the master password and keep the same keepass database file? Is there any residual trace of the old weaker password? Alternatively, It looks like I can create a new database ...
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28 views

How to disable Recovery in Bitlocker

I dont want to disable or turn off Bitlocker. Instead I want to disable the recovery key and the option itself. I want to hide or disable the two options Press Enter to Continue Press Esc for ...
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1answer
46 views

Encrypted LVM in Debian Install - Is whole disk encrypted?

I just installed Debian 9 with desktop environment to see if I can live using linux fairly exclusively. One item during the installation process to encrypt the LVM. I selected to do so and put in a ...
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1answer
61 views

Is there a way of “bitwise” decrypting a corrupt Bitlocker encrypted raw HDD-image

I'm facing a situation, where I'd like to decrypt a "corrupted" Bitlocker protected drive (Windows 10 Partition) by using the known 48-digit recovery key. Corrupt means, I executed a restore (Windows ...
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1answer
40 views

gpg - difference --encrypt-to and --recipient

What is the difference between --encrypt-to and --recipient and what are the advantages and disadvantages of using one over the other, which one should you use for encrypting your own files and what ...
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1answer
26 views

How do I automount luks encrypted external HD?

I have an external HD encrypted with luks. I would like it to automount on my home computer (using a key file stored at my $HOME directory) any time I plug it in (not necessarily at boot time) and ask ...
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Forgot the password of bitlocker drive [duplicate]

I had created a bit locker partition in my windows as F:/ drive. I didn't saved the recovery key as I remembered the password very well. Some days ago, I had changed my password of the drive due to ...
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1answer
48 views

How to know if my SSHD supports encryption?

So, I have this Alienware m15 which has a Seagate Firecuda SSHD ST1000LX015-1U7172. I added another Samsung EVO 970 m2 SSD for OS and when I tried to enable the encryption on this SSD, I accidentally ...
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0answers
21 views

Encrypting and password protecting archive using gzip [duplicate]

I want to encrypt and password protect my archive file using gzip command. Is there any options in gzip command for achieving this like 7zr -mhe and -p options?I also want my password to be appended ...
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Install Crypto++ on Windows 10

I downloaded Crypto++ source files - which is a library for C++. However, I am having difficulties when installing. What am I supposed to do to use the library on Visual Studio latest Community ...
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0answers
163 views

Where would you recommend me to store a Keepass-file? [migrated]

Where do you store the KeePass-DB? Where would you recommend me to store a Keepass-file? Usually I have my personal documents in my cloud account - but i am not sure if this is safe. Would it be ...
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1answer
60 views

How do I securely erase an SSD that is already formatted?

I'm trying to sell my 2015 MacBook Pro, but first I need to securely erase my SSD. All the help I find online only seems to talk about how to do a cryptographic erase on an SSD. Writing zeros to ...
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82 views

Unable to open Encryption Box in a Buffalo MiniStation HD-PCU2

When I try to open one of the "Encryption Box" (Software: SecureLockMobile v1.7) on my BUFFALO MiniStation HD-PCU2 I get the message: "Unable to open file". It does not happen with the others "...
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0answers
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Open LUKS volume using key stored in kernel keyring

Has anyone managed to have cryptsetup open a LUKS volume using a passphrase stored in the kernel keyring? According to this article (see towards the bottom) it should be possible. I have a passphrase ...
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32 views

Date of formatting of drive encrypted with Disk Utility

I had a computer and a backup drive. Computer A held the data and had a backup in drive B. Drive B is encrypted with Disk Utility on macOS and the password is stored and has a hint in computer A. ...
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1answer
83 views

Data access speed in LUKS encrypted partition

In Linux (Fedora 28) I have my home directory LUKS encryped, when using Gnome Disk (screenshot), I can benchmark separately the underlying LUKS partition (upper blue rectangle) and the decrypted home ...
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1answer
33 views

Is bitlocker a reasonable way to secure data on my laptop (windows 10) [closed]

I would like to use my company laptop at home. Due to stronger dataprotection rules in the EU my boss is a bit more security minded than a few years ago. He worries about client-data leaving the ...
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0answers
49 views

Decrypt DVD to an ISO image on command-line

I want to decrypt a CSS encrypted DVD and get a plain ISO image as a result - using only command-line tools under Linux. I know of dvdbackup, but it generates a file tree, not a (decrypted) copy of ...
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1answer
58 views

Unable to decrypt EFS files with cipher command

I tried to decrypt a EFS file with the built-in cipher command: cipher -d "D:\sample.txt", and here's the output: Listing C:\Windows\System32\ New files added to this directory will not be encrypted. ...
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How can I decrypt Avira's quarantine files from last windows

I had decided to restore false positives from Avira's quarantine section, but my Windows crashed and I couldn't use normal restore feature of Avira. Now, after keeping my Windows files, I installed ...
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2answers
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Issues understanding CA certificates

I have misconceptions regarding CA (Certificate Authority) certificates. No matter how many things I read, it is still not fully clear. Let's take an example, Bob accesses a website. In order for ...
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1answer
27 views

Verifying the encryption cipher used in Kleopatra

I'm in the process of rolling out Kleopatra and wanted to verify the cipher being used. In Kleopatra, under "GnuPG System > S/MIME > use cipher algorithm NAME", the option is set to AES. Is this the ...
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0answers
22 views

Peppermint Linux 6 password loop at login

Peppermint version Six worked properly until recently when the network icon disappeared, which complicated access to the Internet. Problems continued, until after accepting the password, it blinks and ...
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0answers
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Entirely removing Windows 7 OS from laptop and installing Windows 10 - BitLocker concerns

I have a Toshiba Laptop with Windows 7 installed on right now. It is divided into 3 main partitions: C for operating system - Not locked with Bitlcoker D for normal files - Not ...
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1answer
80 views

Avoid the “You need to format the disk in drive F:” when plugging a TrueCrypt/VeraCrypt external drive [duplicate]

When plugging a USB external hard drive encrypted with VeryCrypt, VeraCrypt detects it and asks for the password (this is expected, and works well thanks to the Favorite Volumes > Mount selected ...
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2answers
5k views

Does changing the encryption password imply rewriting all the data?

Let's say I have 1 TB of data on a partition encrypted with BitLocker, TrueCrypt or VeraCrypt. Does changing the encryption password imply rewriting all the data (i.e., will it take hours/days)?
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4answers
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BitLocker takes days on an empty external disk / Is “Encrypt used disk space only” available on Windows 7?

I have Windows 7 x64 and a brand new USB external 2 TB hard drive. I formatted it and I confirm it's empty. I enabled BitLocker, and two things happen: It is about to take at least 10 hours or even ...
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2answers
176 views

How to encrypt txt files with AES256 via Windows 7z command line?

I have 7z on windows , and I want to encrypt 1 txt file with AES256 via 7z command line. How can I do it please?
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2answers
362 views

Cannot create folders on my Kali desktop

I just formatted my laptop with Kali Linux and with a full encrypted disk; this is my first time with full encrypted disk. I Face a problem: when I right-click on my desktop, I used to find 'New ...
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0answers
176 views

Convert GPG private key to QR code?

How can I generate a QR code from a OpenPGP/GnuPG private key on Windows 7? Context: I created a private key pair on a Windows computer and want to import the key to my phone. The phone app has ...
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0answers
30 views

Errror with Ecryptfs-mount-private due to setreuid

Following the archlinux guide on ecryptfs I worked on creating a passthrough encrypted folder on /home/share. I am doing this on OpenSUSE leap 15 with ecryptfs-utils. I properly generated the fstab ...
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1answer
53 views

How to convert gpg4win's binary to ascii, with Notepad++

I can reliably convert gpg4win's ascii to binary using Notepad++ option "Base64 Decode" (credit: James K Polk). Works every time. But when I attempt the reverse, i.e. convert binary to ascii, it ...
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0answers
24 views

How to set defaults for gpg4win/Kleopatra

When encrypting a file with ggp4win/Kleopatra, some options are checked by default. See screenshot below: Is there a way to have a different set of boxes checked automatically?
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How to convert gpg4win's ascii to binary?

gpg4win can save and read encrypted files in two forms: Binary with .gpg extension Base64/ascii with .asc extension Is there a way to convert the Base64/ascii output to binary? I tried with Notepad+...
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I was running BitLocker (Windows 7), halfway through BitLocker process crashed

I was running BitLocker (Windows 7) on an external 1500GB HDD and halfway through the USB cable got loose and the BitLocker launcher/process module crashed or stopped. Now it might be running in the ...
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76 views

SSD overprovisioning and encrypted LVM

I have a SSD with an encrypted (cryptsetup/luks) LVM partition. Since I'm not yet into that ssd stuff I offhandedly left approx. 10% unpartitioned for overprovisioning. Just because I was told that ...
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1answer
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If I swap out a Bitlocker encrypted SSD to another one, then reintroduce the original SSD in the PC, will it require Bitlocker-unlocking to use?

I am wondering if it would be possible to take out a Bitlocker encrypted SSD from a PC, put in another one and use the PC, then swap the original drive back without it having to be Bitlocker unlocked. ...
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0answers
21 views

Can not install new operating system or even a DBAN wipe out

I encrypted the notebook with the intention to wipe out all data with DBAN in the second step. Now i can´t run even DBAN... "missing operation system". I tried to Boot/install windows, as well as ...