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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GPG2 Asks for password even with --passphrase specified

I'm trying to script a gpg decryption, and as such need to provide the password on the command line. According to the man page, there are three ways to do this: read from a file using --passphrase-...
ibrewster's user avatar
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5 votes
3 answers
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Duplicity restore failing: No secret key

I'm setting up a backup from a local machine to a remote server. I generated gpg keys on the local machine and ran a test backup with: PASSPHRASE="MyGPGPassphrase" duplicity --encrypt-key KeyID ...
Pabi's user avatar
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5 answers
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Routing all Internet traffic through home network

I'm looking to establish a connection between my computer at school and my computer at home for the purpose of routing all Internet traffic across this connection. My school monitors my Internet usage,...
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5 votes
2 answers
7k views

Decrypt EFS files

Here's my situation. Was using EFS on my Vista laptop - had a backup of my certificate. HD crashed...managed to recover some of my files (Encrypted) - but they "lost" the "Encrypted" attribute in ...
Nick's user avatar
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2 answers
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How can I prevent Windows 10 from sharing wifi details with my contacts?

In recent release of Windows 10 we could see a new feature named wifi sense, which raised the following security threat as per this blog post : This brilliant new feature, which Microsoft has ...
BlueBerry - Vignesh4303's user avatar
5 votes
1 answer
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Encrypt files on an SD card

I have a new computer with a shiny slot for an SD card. I have brought a nice fast 32GB SD card for it and will be using that as personal back up of my important documents. What I hope to be able to ...
Madison Cat's user avatar
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3 answers
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Can you defrag an encrypted file system

I just encrypted my entire hard drive with truecrypt and was wondering can I still defrag it? Or will that not work anymore or break something.
Jake Anderson's user avatar
5 votes
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How to download aes encrypted m3u8 using ffmpeg or youtube-dl?

I have the m3u8 file and the key.bin, inside the m3u8 file is: #EXTM3U #EXT-X-VERSION:4 #EXT-X-PLAYLIST-TYPE:VOD #EXT-X-INDEPENDENT-SEGMENTS #EXT-X-TARGETDURATION:6 #EXT-X-MEDIA-SEQUENCE:0 #EXT-X-KEY:...
weakplayrxw's user avatar
5 votes
6 answers
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File-based encrypt-and-sync solution for Windows

There exists many syncing and backup solutions out there, but I have yet to find a setup that will cover ALL the following behavior: I want the ability to designate local folder B as the "...
donnyton's user avatar
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4 votes
4 answers
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Need simple file encryption for unskilled Mac and Windows users

I need to give my boss backup copies of some sensitive data. I want to encrypt the data, but she needs to be able to decrypt it on her own, without technical support (as long as she has the password, ...
octern's user avatar
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How to encrypt ONLY a user's profile folder (e.g.: /User/sid) on Mac OS X Lion 10.7.2?

I wanted a way to encrypt my user folder e.g. (/User/sid/*) and have Mac OS X auto mount it based off my login credentials. Since that folder also contains profile info, I suspect it would need to be ...
DeepSpace101's user avatar
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Should software encryption affect the "Disk data transfer rate" from Windows Experience?

My company mandates Software Encryption for all laptops. I dragged my feet because I did not want to have anything between me and my data. But I was finally pushed into it. I installed it and I am ...
Vaccano's user avatar
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How to encrypt data in bitbucket without losing git diff tools?

Based on this question:encrypt files before sending them to cloud. considering openssl: For example when using openssl we can write the files fooenc.sh: #!/bin/sh openssl enc -bf -nopad -pass pass:...
ePascoal's user avatar
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3 answers
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How to setup disk-encryption with Ubuntu?

I'm interested how you can setup disk-encryption for Ubuntu, with as few hassle as possible.
Mnementh's user avatar
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How do I fix a cipher mismatch issue with sftp?

I'm running into an issue where a server was upgraded to RHEL 6.5, and we have automated bash scripts on an RHEL 5.9 install that connects through sftp and ssh commands. Now, the new server only ...
Hazok's user avatar
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4 votes
2 answers
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Migrating from unencrypted Ubuntu 16.04 to LUKS Encrypted install of 16.04

My company is working on implementing some Ubuntu Systems in a few of their new testing efforts and I have been tasked with an encryption solution for them. Having been a primarily Windows user with ...
Brendan77222's user avatar
4 votes
3 answers
4k views

How to mount an old encrypted disk on Ubuntu

I've got an old hard disk, containing an encrypted partition with a file system on it. It was created (and used) several years ago, the way it was done back then was using losetup with the twofish ...
Alfe's user avatar
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4 votes
3 answers
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How to decrypt Windows 7 encrypted files

I have a flash drive and on this flash drive I have a folder. In Windows explorer, I right clicked on the folder and went to properties. I then clicked the advanced button and there is a check box ...
Icemanind's user avatar
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2 answers
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How can you let mutt encrypt mails in the sent-mail folder?

When i sent an encrypted mail, i was surprised that the copy in sent-mail was not encrypted. Checking with a testmail, the mail is sent encrypted, but the copy in the sent-mail folder is plain text, ...
allo's user avatar
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4 votes
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What is the best way to protect e-book?

I am a writer and want to sell my ebooks on the web. But recently there are many bad buyers who remove the protection, modify the contents, and share them on the web. My related question: Is it true ...
Display Name's user avatar
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How can I remove the password protection from a RAR archive? [duplicate]

I have a directory in which there are lots of password protected .RAR files/archives. The passwords of these individual archives are known. I want to remove the password protection from all of them ...
Mehper C. Palavuzlar's user avatar
4 votes
1 answer
577 views

How does SSL work? Isn't there a hole?

I was reading this article, specifically the "SSL in action" part. It says: When Client connects to company.com on its SSL-secured port, the company sends back its public key (and some other ...
mpen's user avatar
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Decrypt files encrypted with TrueCrypt

I have a usb pen memory crypted with TrueCrypt. Is there a way to decrypt ( without TrueCrypt ) files encrypted with TrueCrypt in linux ?
xrobot's user avatar
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1 answer
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How to find my LUKS encryption passphrase inside decrypted filesystem?

I have lost my encryption passphrase, however my computer is still on and I would like to know if there's a way to see my passphrase to avoid having to backup my data and reinstall. The hard drive was ...
Kanilor's user avatar
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3 votes
4 answers
14k views

How can I encrypt plain text with a password on Linux?

http://www.unreadable.de/ takes a plaintext message + password input and encrypts the plaintext. I want to do this locally on Linux. Is there a one-line command that will compute an encrypted version ...
isomorphismes's user avatar
3 votes
1 answer
564 views

Recover EFS Certificate from dead Motherboard

I created an encrypted file with Windows 7 32-bit on a NAS (mybooklive) and backed the file (not the certificate) up locally to the computer's hard drive. The original Win7 computer had a motherboard ...
trmills's user avatar
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3 votes
2 answers
21k views

veracrypt file system option for larger files

I tried creating a veracrypt volume and I assigned 10gb to it. The tutorial I saw on veracrypt had the file system option as FAT, however exFAT was automatically selected as my option when I was ...
stan's user avatar
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1 answer
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Can TrueCrypt be configured to dismount volumes when you hibernate?

TrueCrypt can be configured to dismount volumes upon logoff but is it possible to dismount volumes when you hibernate windows?
Matthew's user avatar
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Cracking truecrypt files in minutes? Or just truecrypt harddrives in minutes?

Apparently http://www.lostpassword.com/kit-forensic.htm can be used to crack truecrypt hard drive encryption. Has anyone tried it and is it possible to crack truecrypt files too with this software? ...
oshirowanen's user avatar
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How to install Ubuntu 15.10 on an encrypted RAID 1

I recently set up an Ubuntu 15.10 (desktop) on a encrypted RAID 1 and want to share how to achieve this as it didn't work out of the box and I didn't find any tutorial. So what I wanted to achieve was ...
soriak's user avatar
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3 votes
1 answer
721 views

LUKS Cryptsetup Options Failing for Raspberry Pi 3 Model B+ Running Kali Linux ARM

I've scoured the internet for help on this, and it seems I'm one of the only people with this problem. I recently downloaded a fresh copy of Kali Linux ARM for the Raspberry Pi 3 Model B+, and I want ...
computer_geek64's user avatar
3 votes
2 answers
879 views

Data protection on HDD: trying to sort out relevant technologies

I'm trying to understand how I can protect data from being used if a computer or a hard drive disk is stolen. I'm looking for reasonable protection against non authorized access to private data (...
bitlocked's user avatar
  • 187
3 votes
3 answers
4k views

Does compression on a TrueCrypt drive compromise the security?

I choose “Compress drive to save disc space” under drive properties.
Amir Rezaei's user avatar
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3 votes
1 answer
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Is LUKS/cryptsetup's `hddname` (or `name`) simply an arbitrary label used during the session

This is a very simple question about LUKS encryption. My Fedora 15 system uses LUKS over the root, home and swap LVM partitions. To access these partitions from a boot cd, for example, its necessary ...
xtian's user avatar
  • 995
3 votes
1 answer
20k views

Decrypting a TrueCrypt drive pulled from another machine

I work in a corporate environment and we are now required to encrypt laptops. I have already encrypted about 5 or 6 out of 40. I still have a few questions before we go all out with TrueCrypt. Can ...
Blakeg08's user avatar
3 votes
1 answer
5k views

BitLocker vs. Encrypting File System (EFS) on Windows 7

So BitLocker encrypts the entire hard drive, while EFS encrypts individual files. Is there any difference in the way that they implement the encryption? Do they both use your user account password as ...
Egghead99's user avatar
  • 1,755
2 votes
2 answers
693 views

Decrypt files moved to USB drive and back

I'm on a Win10 Notebook and I have the following issue: I've encrypted a folder including all subfolders using the builtin encryption feature which you get when you right-click on a folder > ...
Michael Mahn's user avatar
2 votes
1 answer
6k views

Decrypt file on SD card of Samsung phone encrypted by Android 5.0

My Galaxy Note 4 does't recognize the encryption on my SD card anymore. I can't open any file. Now, since I have the password, I thought I could decrypt them myself, with Android Java or with C++ on ...
schacker22's user avatar
2 votes
1 answer
3k 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 ...
get_going's user avatar
  • 115
2 votes
1 answer
486 views

How to make thunderbird automatically encrypt emails if possible?

When I start to compose a new email in Thunderbird, I want it to automatically enable the Encrypt button after I type a recipient's email address into the To field, if I have that recipient's PGP key ...
Michael Altfield's user avatar
2 votes
0 answers
1k views

Interrupted encryption using Windows 7 BitLocker

Can anyone help me please? While I was encrypting my hard drive with Windows 7's BitLocker, I accidentally pressed the "Cancel" button, and now my hard drive won't accept my password. Is there any ...
jack91's user avatar
  • 21
2 votes
1 answer
3k views

Stopping encryption on a MacOS ver.10.12 Time Machine

I recently ran into a problem encrypting my external drive 1 TB My Passport for Mac as a Time Machine disk. Its been locked at 97% completion for at least a week and can't seem to manage a TM backup. ...
user629's user avatar
  • 21
2 votes
0 answers
473 views

LUKS encrypted drive not booting after modifying partition table with TestDIsk

I screwed up my partition table the other day but had recovered it with TestDisk. After re-writing the partition table, I'm able to boot up into GRUB and subsequently the interface for entering my ...
Moo's user avatar
  • 41
2 votes
2 answers
2k views

LUKS encryption with non-interactive login on RHEL6

I need to have LUKS encryption on this system but during lab development I don't want to have to enter the password at the console each reboot. I'd like a way to set a simple password that can be ...
sp00led's user avatar
  • 91
2 votes
1 answer
6k views

How to decrypt the system drive and disable BitLocker in Windows 11 Home?

So before I install Linux on a laptop I'd want to backup the whole shebang. The laptop is running a fresh OEM install of a Windows 11 Home. I don't have as large drive as the source SSD simply for a ...
Csaba Toth's user avatar
2 votes
1 answer
2k views

If someone steals my chromebook while it's off, will him be able to see my cached data?

Does Chrome OS encrypts everything under my account? Does it save unencrypted data to the disk?
Jader Dias's user avatar
2 votes
1 answer
805 views

Encrypting C:\Users on Windows 7

Is there a way to encrypt C:\Users on Windows 7? I've tried TrueCrypt with whole partition encryption and it doesn't work because I don't have 32kb free in my boot sector (Apple's Boot Camp I presume)...
Pablo Fernandez's user avatar
2 votes
1 answer
3k views

Store personal certificates encrypted in Windows?

I recently got my self an email S/MIME signing/encrypting certificate. I installed this on my Windows machine, which, obviously, required me to enter the password I used to encrypt the certificate, ...
David Nordvall's user avatar
2 votes
1 answer
511 views

Security Considerations when Storing Documents with TrueCrypt in Dropbox

I am considering moving my default documents folder to Dropbox. These also contain scanned letters and important information relating to contracts, bills, and so on. I will encrypt those with True ...
Damien's user avatar
  • 752
2 votes
2 answers
4k views

Using Pidgin with OTR-encryption on Linux and Windows [closed]

Please show here how to install and activate OTR ("Off-The-Record") and Pidgin to me on both: Windows and Linux.
rubo77's user avatar
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