Questions tagged [encryption]
Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.
2,893
questions
3
votes
2
answers
740
views
Multi-user cross-platform client-side on-disk encryption with a SMB/AFS NAS?
I have an old Lacie 5big NAS that does not support encryption. It speaks SMB, AFS and FTP.
I'm looking for a way to store encrypted data on the NAS, at the same time it should be accessible by ...
2
votes
2
answers
2k
views
Laptop with two LUKS encrypted disks: HDD and SSD: How to start with same passphrase?
In my Linux laptop I've two disks:
One larger conventional HDD and a smaller but fast SSD.
On the SSD I've got a small unencrypted /boot-Partition containing kernels, initrd images, and GRUB. All ...
2
votes
4
answers
901
views
How to be able to read encrypted files in the future, when the encryption tool is not available anymore?
I back up a lot of my files encrypted, but what I wonder is how to make sure that I will have access to this data in, let's say, ten years, when the tool that I used to encrypt the files is not ...
0
votes
0
answers
309
views
Data corruption in PGP encrypted environment
I'm trying to determine what is causing, and how to prevent, data corruption that is occurring in a secure, PGP encrypted environment. I am one of the primary users of the system, and not an ...
1
vote
0
answers
1k
views
Triple-boot: OSX, Linux, & Windows with full disk encryption
I have a Macbook Air (MacBookAir6'2) that I want to set up a triple-boot on:
Required Operation Systems:
OSX (10.11.3)
Linux (Debian based: Elementary or Mint)
Windows 8.1 Pro
The 2 main ...
3
votes
1
answer
4k
views
Can you mount a VeraCrypt partition to a folder?
I have recently encrypted a drive with multiple partitions using VeraCrypt. This is not the main drive with Windows installed on it, but a drive used to store data. Windows allows me to mount the ...
5
votes
1
answer
6k
views
Why does GPG not decrypt with all subkeys?
I have multiple subkeys for signing and encryption. Here is my public and private key list.
jeremy@localhost ~
$ gpg -k
/home/jeremy/.gnupg/pubring.gpg
-------------------------------
pub 4096R/...
2
votes
1
answer
63
views
I got asked "How would you encrypt messages so that Customer Service could read if necessary?"
I was interviewing for a full time position with the company I am a contractor with. One of the questions I got presented with was designing an IM client. I got asked the following question: "How ...
2
votes
0
answers
545
views
Windows 10 pro bitlocker is not working
My Dell laptop has Windows 10 professional edition and previously it has a working bitlocker program. But now can't open bitlocker using start menu or control panel.When I search bitlocker from start ...
-5
votes
1
answer
112
views
why Ransomware malware payment message not encrypted also?
it is an awkward question but just want to know why the payment message not encrypted or corrupted or any error seems to happen when pop-up?
and what type of this message is it an excutable extension ...
0
votes
1
answer
1k
views
Bash loop for adding --exclude list to tar
I have a bash script I made to encrypt/decrypt using GPG and tar. Right now I have my --exclude hard coded into the script, but I'd like to make it a bit more dynamic and add the items to exclude as ...
1
vote
1
answer
37
views
Another people's OpenPGP key in my computer?
Today, when I executed gpg --list-keys, I saw another people's key list here. I search in seahorse, but can not find it.
Is this key stored in my pubring.gpg file?
I only have one OpenPGP key for ...
1
vote
0
answers
60
views
HDD Stopped Responding
I have an external 500GB hard drive containing a WD Scorpio Black, used all as one partition, encrypted with BitLocker and runs very well.
This morning I connected it to my PC, it asked for BitLocker ...
1
vote
0
answers
713
views
Duplicati uses symmetric encryption despite giving the recipient ID_key
I have a question regarding decrypt using gpg asymmetrically. I use duplicity encrypt copies asymmetrically.
E.g:
`Duplicati.CommandLine.exe backup s3://testduplicatigpg3 C:\Users\test\Desktop\tt --...
11
votes
3
answers
16k
views
Under Linux, is it possible to encrypt a folder/partition in a way that it is not accessible to anyone without the password?
I was reviewing the different alternatives I have (like ext4 encryption) but I think all of them are vulnerable for root to just enter into my home account and see what's stored in there, which is ...
1
vote
0
answers
806
views
No space left on device - although there is plenty of space and inodes
I have a USB disk with truecrypt volume for backup.
This truecrypt volume occupies almost the whole USB disk.
USB disk and the truecrypt volume have both NTFS format.
When I tried to copy a directory ...
4
votes
1
answer
2k
views
Generate encrypted password for a GNU screen session
How to programatically generate a password for a GNU screen session?
Normally, to define a password for an existing GNU screen, we have to:
Start a screen
Do Ctrl+A :password
Upon reattach, screen ...
3
votes
1
answer
487
views
How to encrypt a live rootfs on Arch Linux
I have a Linux Arch system running on a VPS. The rootfs is installed on a LVM partition. I would like to overlay an encrypted container on this partition, then reinstall the rootfs on it and enable ...
1
vote
1
answer
4k
views
How to query for all recipient OpenPGP keys with GnuPG?
I cannot find a reliable method for asking gpg the list of (public) keys used to encrypt a given file. One plausible solution doesn't work for me -- it never lists my key:
gpg --list-only --no-...
0
votes
2
answers
89
views
Convert/Encrypt Office 2003 Documents
We have a large number (1000s) of old Excel 2003 spreadsheets that we need to encrypt. The encryption in Excel 2003 is outdated now so we would like to update the files to 2010 format and then ...
0
votes
0
answers
1k
views
Autologin and mount encrypted volume in KDE 5
On my machine, I have Fedora 23 (Server) and KDE 5.19. SELinux is deactivated. Furthermore, I have an encrypted home volume (using LUKS). As soon as the user logs in on the SDDM greeter, the encrypted ...
2
votes
1
answer
694
views
Enigmail constantly prompting for password
My Enigmail is constantly prompting for password when clicking on emails that have already been decrypted a second ago, switching between encrypted emails that have been decrypted.
In the Enigmail ...
1
vote
0
answers
66
views
Debian Jessie, raid5 and encryption issues
I installed Debian 8 today. During installation, I made the following settings:
/dev/sda1 -> 1GB /boot
/dev/sda2 -> about 80GB encrypted device
/dev/sda2_crypt -> lvm with VolumeGroup vg0
...
1
vote
1
answer
480
views
Backed-up EFS certificate doesn't work after resetting password
I'm on a Windows Vista computer. I've wanted to use EFS for a little while but I wanted to experiment on some individual files first. While doing that, I backed up my certificate and key, reset my ...
1
vote
1
answer
420
views
Encrypt multiple hard drives in Windows, each required for boot
I have two drives, a small SSD (boot device) and a much larger drive for data. I want to encrypt these drives, but the problem is that both of them need to be available at boot time. I have many ...
1
vote
1
answer
10k
views
Changing AuthorizedKeysFile in `sshd_config` not solving public key auth failure with encrypted home
The case sounds simple. I have my home folder encrypted using eCryptFS on the "server", it looks like:
/home/<user_name>/.Private on /home/<user_name> type ecryptfs (...
0
votes
1
answer
139
views
Recovering Word file from Encrypted External HDD
My partner is a teacher and therefore requires her external hard drive to be formatted using encryption called Endpoint. She had been writing reports and lost them. I have tried via Remote Assistance ...
9
votes
4
answers
6k
views
Enigmail cannot communicate with gpg-agent
Update
As of Ubuntu 16.04, the plug-in works as expected and there's no need to downgrade as suggested in the accepted answer. The question was applicable to Ubuntu 15.04 and, maybe, 15.10.
Original ...
2
votes
2
answers
9k
views
Does a VPN encrypt traffic between the VPN server and the internet?
Between the client and VPN server is a tunneled and encrypted connection, but is the connection from here to the internet encrypted?
Example of what I found on PIA's site:
Its has an encrypted ...
1
vote
1
answer
533
views
What happen if windows infected with ransomware malware and the windows already fully encrypted with TrueCrypt?
can ransomware encryption overwrite TrueCrypt encryption? what will happen then
0
votes
0
answers
577
views
Decrypt files encrypted by LeChiffre ransomware
Over the weekend, my personal server got hit with the LeChiffre ransom ware. Unfortunately, they were able to get in due to an insecure Active Directory account. I've since disabled all accounts and ...
0
votes
1
answer
116
views
right click and generate truecrypt volume from contents
has any one found a way to take the contents of a folder and programiticly generate a volume for it in truecrypt that is just the right size?
like in windows how you right click and select send to ...
4
votes
1
answer
223
views
How to remove cryptowall encryption
Please help me urgently, Because My all files are encrypted by unknown virus named, 'CryptoWall encryption'.
I attached one screenshot, which is provided by this virus.
1
vote
1
answer
567
views
How to manage multiple certificates in the Apple Key Chain with Apple Mail in mind?
I would like to ask about proper management of SSL certificates in Keychain. An article on holeyn.com says:
The only time it might be useful to have multiple key-pairs (...)
In this situation, ...
-4
votes
1
answer
851
views
Does viber share my personal info with third parties [closed]
Does viber share our personal information with third parties?
What includes in the personal information as they mention in their privacy policy? Is it just name contact number and email only... or ...
1
vote
4
answers
2k
views
How do I ensure that BitLocker can't be bypassed with a recovery key?
I want to encrypt my hard drive using BitLocker, but it requires me to create a recovery key. Now, I understand why this is important, as there may be cases where my password alone can't unlock the ...
11
votes
1
answer
6k
views
How to set the Owner of certificate generated by Let's Encrypt?
I've implemented Let's Encrypt on two production servers with relative ease, and both servers are providing certificates to the websites we run on those servers.
What's bugging me though is when you ...
4
votes
1
answer
2k
views
Can I save a LUKS (or other encryption) passphrase or key in the TPM?
The spec is rather complex. The software is rather sensitive, so I keep it on an encrypted volume. My assumption was SecureBoot with my own Platform Key to ensure only my signed boot-loader runs, and ...
0
votes
1
answer
2k
views
Bitlocker: Manage-bde unable to unlock drive: "The current directory is invalid." error occurs
I've encrypted one of my drives with Bitlocker and am successfully able to lock the drive via manage-bde with the following command
manage-bde -lock H: -ForceDismount
However, when I try to unlock ...
1
vote
1
answer
663
views
How does encrypting /home partition with ecryptfs on linux stop malicious modification of /boot or /(root)?
This is a page where a developer of ecryptfs explains the difference between ecryptfs and dm-crypt: https://stackoverflow.com/questions/18230784/what-is-difference-between-linux-kernel-subsystem-dm-...
0
votes
1
answer
1k
views
Recover Deleted Encrypted File With Certificate
I have accidentally deleted an encrypted folder and clear the recycle bin. I have the certificate of which I encrypted the folder with.
Using conventional software such as Recuva, I was not allowed ...
2
votes
1
answer
1k
views
How do I find a complete GPG fingerprint when verifying a signature?
When I right-click a signature file and click More GpgEX Options -> Verify, it says it's valid, showing my email address and last 8 hex digits of my fingerprint. Doing Right-click then GPGshell -> "...
1
vote
1
answer
1k
views
"Transform" code from an AutoRun.inf file
I've recently been fiddling with VeraCrypt and wanted to encrypt a USB-drive. VeraCrypt has a very handy portable future, so you can encrypt the drive and include the Veracrypt software so you can ...
3
votes
1
answer
11k
views
Check that kernel supports aes-xts-plain64 cipher
After an update I can't access my encrypted disk.
When trying to do so :
sudo cryptsetup luksOpen /dev/sda8 Documents
Failed to setup dm-crypt key mapping
Check that kernel supports aes-xts-plain64 ...
6
votes
2
answers
3k
views
How can I read an openssl aes-256-cbc encrypted file without creating an unencrypted file in Linux?
I have an encrypted file and to decrypt it I use the command:
openssl aes-256-cbc -d -in encrypted_file -out unencrypted_file
But when I do this an unencrypted file is created which I have to ...
4
votes
3
answers
12k
views
Debian : Encrypted Raid 1 setup.
We have a Debian X64 server which has the following config. One single 512GB SSD, which has our OS and two 2.0TB HDD's which have data like attachments, etc.
The two 2.0 TB drives are in RAID-1 ...
0
votes
1
answer
192
views
Pen drive corrupted or Encrypted ? How to recover [duplicate]
My name is Manoj.
I have a 16 GB sony pendrive. When I plugged it, it shows 12 GB of it is filled. But there where no files in it. I tried even unchecking hide system files in folder options. Then I ...
1
vote
1
answer
810
views
Bitlocker on Samsung 840 EVO SSD without TPM: Stuck on Password screen
I've a problem using Bitlocker to encrypt my Samsung 840 EVO SSD on Windows 10. When enabling Bitlocker the blue password screen before booting Windows freezes after inserting a correct password.
The ...
2
votes
1
answer
341
views
True Crypt Alternative For Encrypting Drives [closed]
I have Windows 7 Pro and as such, bitlocker won't work for me. I have some sensitive information which I have locked with an AES-256 key in a 7zip folder, but I would like to encrypt my entire drive ...
5
votes
2
answers
11k
views
pubring.gpg and secring.gpg are missing after key generation
I'm a newbie to GnuPG. I was following the instruction "Generating a Key Pair". And finally I do not see neither pubring.gpg nor secring.gpg in my ~/.gnupg directory:
chriss-MBP:.gnupg andrej$ ls -la
...