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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LUKS encrypted volume lost upon reboot

Using this guide I encrypted a volume and am able to open and mount it manually. The problem comes after rebooting. On startup the system does not open the encrypted volume, nor is the decrypted ...
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6 views

Sophos “Enterprise Console” Full Disk Encryption adding a user

We have rolled out the "Full Disk Encryption" from the Enterprise console suite. Recently new users are not being added after the machine was running - new users who login when past the on boot ...
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9 views

GPG agent over SSH (with vagrant)

I'm using vagrant for building and signing my debian/ubuntu packages but I'd prefer to not have have to copy my GPG keys into the virtual machine just to sign packages. It just feels insecure. Is ...
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1answer
14 views

root encryption with LUKS: root partition not found

The layout of my only disk is the following: /dev/sda1 for the plaintext boot partition /dev/sda2 for the encrypted root partition My system is ArchLinux and I followed this guide to set up root ...
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2answers
31 views

Is it possible to encrypt only certain data when a laptop hibernates?

I would like to achieve protection from both ends of the spectrum: On the one end you have the need to protect the sensitive data on the laptop. Encryption of the system disk means the data will be ...
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0answers
7 views

Would BitLocker and SysKey be a possible and good security combo?

Is it possible to have Bitlocker and SysKey work together on a Windows machine? If so, could you have them both work on a single USB thumb drive? Would the Thumb Drive have to be partitioned? If no, ...
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4answers
38 views

Why isn't it possible to Encrypt and Compress a Folder on Windows?

I read this blog which explains why this isn't possible but I can't seem to figure out the reason. I find the blog a little difficult to understand. Can someone please explain why it's not possible ...
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1answer
17 views

How to specify private key when decrypting a file using GnuPG?

I am trying to decrypt a file with GnuPG, but when using the command below: gpg --decrypt filename.gpg I get the following message: gpg: encrypted with RSA key, ID 3662FD5E gpg: decryption failed: ...
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1answer
15 views

How to remove the gpg signature from a signed file without creating a new file on disk?

If I have a 100 MB signed binary file that I download over the internet, I need 200 MB of disk space to open it. The file is just signed, not encrypted. When disk space is low, It is not possible to ...
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0answers
144 views

Locker v3.9 encrypted my files [closed]

I have been infected with ransomware and I want to ask if any of you heard of Locker? What software can I use to try and recover my files? Will they give my files back if I pay?
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1answer
29 views

RC4 encryption of torrents safety

Torrent clients offer encryption of traffic using RC4, and people consider this, like, very safe to hide traffic information from ISP. Now since I have a website with SSL encryption, I know that RC4 ...
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0answers
13 views

Mount and copy data from HDD with McAfee Endpoint Encryption

I have an old laptop on which I used McAfee Endpoint Encryption. I remember the password for it and can boot to Windows 7. However, I no longer recall my Windows logon. All I need to do is copy some ...
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1answer
15 views

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 ...
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0answers
18 views

What techniques can I use for audio and/or video chat that don't use SIP and complex layered architectures?

Point A few years ago a friend and I were messing around and we created a super-simple video chat link by running VLC twice on both our computers: one "watched" the local webcam and cloned the video ...
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0answers
115 views

How to revert a LUKS encryption over ecryptfs

I had an encrypted /home folder under Ubuntu. As far as I can tell, it was encrypted using ecryptfs. It was using ~890 Gb of a 904 Gb partition. But then I tried Antergos, an Arch derivative, and made ...
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0answers
12 views

Cross platform USB encryption [duplicate]

I'm carrying an USB stick on my keychain. It contains auth keys for ssh, some passwords, addresses and other sensitive info that I need every day at work, since I drive around alot. I need to be able ...
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1answer
31 views

Ubuntu 14.04 LTS on a ASUS Laptop

I have an ASUS laptop which I am trying to re-purpose as a Linux machine, to which I purchased a new 750GB hard drive. Yesterday I installed Ubuntu 14.04 LTS and followed general guidelines for ...
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0answers
11 views

Will reinstalling Windows break the encryption on other drives on whole encrypted hard disk?

My hard disk is divided on three partitions. I want to encrypt the whole hard disk with Truecrypt but when i have to reinstall windows i have to format C drive which means that it will remove the ...
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0answers
21 views

How can I input password to manage-bde -pw option via windows powershell

I am trying to encrypt Data volume (for example E:) with the following command: manage-bde -protectors -add E: -pw When I execute the above command, it will ask for the password, so I entered it. ...
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0answers
21 views

how can I revert this encoded office file? [duplicate]

a friend has faced a peculiar ransom request for his files. his laptop has apparently been hacked and all his documents have been changed, both the extension and the content. the hacker has requested ...
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0answers
56 views

Access truecrypt encrypted data from hdd of broken laptop

I am trying to obtain data from my previous laptop which is broken. Part of the data was not backed up at the time the laptop broke down. The hard drive is still functioning properly and I can ...
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0answers
12 views

Bitlocker device name change [migrated]

When imaging our PCs we generally create a temp name for our facilities to change the device name to whatever particular department fits their needs. The issue is we can't send out any devices without ...
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0answers
20 views

Encryption and Decruption with GPG

A friend and I have a bunch of files that I encrypted stored on google drive. The issue comes up that he can't decrypt anything there. The steps I've taken thus far are 1.) Encrypt the ...
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0answers
44 views

crypto kernel module not avialable on linux 3.18.11 on Raspberry Pi 2

I'm trying to use dm-crypt on my Raspberry Pi 2 with Raspbian (debian) to open a trueCrypt volume, but i get Required kernel crypto interface not available. Ensure you have algif_skcipher kernel ...
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1answer
58 views

Can DoxBox ( or FreeOTFE Encfs Truecrypt ) prompt and mount an encrypted file volume or encrypted disk partition before Windows boots to its GUI?

I would like to Encrypt a secondary drive (NOT the OS/boot drive) and have it mounted and drive letter mapped etc, before Windows 7 gui boots up. This is because I will have mapped some user data onto ...
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19 views

Why do some mac encrypted files crash ALL my windows apps?

Occasionally I get these 'evil files'. Attempting to open or otherwise interact with them (right click to rename for example) will crash whatever application I am using. Try to add as attachment in ...
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40 views

How to RC4 decryption in command line when encrypting using C program

I used the code Decrypt RC4 in Linux (by mr.spuratic) to encrypt a file. How is it possible to decrypt it using openssl command? for example- openssl enc -d -rc4 -in rc4.txt -out plain.txt -K ...
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51 views

How to Enable Hard Drive Encryption with Seagate Constellation ES.3 SED Drive on AMI BIOS with TPM

I'm building up a new machine with a Supermicro MB equipped with a TPM and a Seagate Constellation ES.3 SED drive (ST200NM0053). The MB has the AMI BIOS which does see the TPM. I've installed ...
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1answer
52 views

Does connecting to a VPN always provide a secure environment over unencrypted WiFI connections?

Sometimes I have to use public WiFi connections. I always connect to a VPN thinking it will provide the security of encryption. However, I don't know any details about how the VPN I use is ...
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1answer
18 views

Can I use EFS to encrypt the user directory?

I want to know if doing so would prevent windows from logging in to the user or not, has anyone tried to encrypt the user profile folder or the windows folder?
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1answer
65 views

PowerShell script to decrypt file

Can some one help me with this command to decrypt files using powershell? echo YOURpassPHRASE | gpg --keyring "C:\directory\filepath" --secret-keyring "C:\directory\filepath" --batch --yes ...
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2answers
64 views

Credible sources to download TrueCrypt 7.1a [closed]

As the official developers of TrueCrypt discontinued the software and left the following messages on the official website WARNING: Using TrueCrypt is not secure as it may contain unfixed security ...
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10 views

Newly generated pgp keypair missing from Portable PGP

I have a USB drive with Portable PGP on it and have used it for quite some time with no issues. I generated a new key-pair the day before yesterday in order to secure a new account with 2FA ...
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2answers
96 views

LUKS partition automount fails at boot

I have an encrypted Ubuntu 14.04 Desktop setup. The encrypted root partition is created using the Ubuntu installer default parameters (choices "Erase disk and install Ubuntu" and "Encrypt the new ...
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1answer
19 views

How to format a Verbatim Execute Portable HDD 500 GB with Nero software encryption

I bought from an office closure a portable HDD, which seems to be encrypted with Nero software. Of the 500 GB it tells me, 40 GB are there. I cannot see the complete 500 GB. So, I do not care about ...
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1answer
170 views

Total, initial, hard drive encryption speed with VeraCrypt

Context: I decided to encrypt a 2TB Internal Sata II hard drive I use for personal files (photo collections, tax prep PDFs, hosting a synced Dropbox folder, some non-HD video files, driver install ...
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2answers
72 views

Full Disk Encryption in existing Linux system without erasing any content from the drives

I am trying to achieve "Full Disk Encryption" in a already installed Linux system. I have come across with LUKS with dm-crypt, it can encrypt a drive/entire disk, but before encrypting it is ...
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2answers
42 views

removing sensitive data from laptop (ssd drive) before sending to support

Here is my problem. My computer has a screen problem and needs to be sent to the manufacturer's support desk. However I have some private files on the computer I dont want the support to (possibly) ...
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50 views

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 ...
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0answers
56 views

gpg --gen-key not working on “su -l”, but working on local terminal

When I try to use "gpg --gen-key" (v2.1.2 on archlinux) with an user I just created ("backtest"), it works when I open a terminal for that, but not when I'm logged in with another user and then "su -l ...
2
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1answer
99 views

What are the best wireless security settings for my router

I am using older SOHO router wl500gP (it is v1 but I think this is not important) with custom Oleg firmware which allows me to use one of the following "Authentication Method": Authentication Method: ...
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0answers
35 views

How to recover Windows 7's encrytion certificate (EFS) from formatted partitions?

I am a home user of Windows 7 ultimate. I am just a local admin for my computer. A standalone system. I am quite noob about computers. I formatted, Windows 7 installed(size 200gb) partition of 1tb ...
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1answer
29 views

Show the encryption method used on a Zip file in Linux?

I’d like to see what encryption method was used on a Zip file on Linux. How can I do this? See the following posts for reference: This question which shows the need to verify the encryption: 7-zip ...
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3answers
255 views

How to encrypt all—or part—of a USB hard drive that can be accessed by both Linux and Mac OS X?

I bought a new USB Hard Drive that I want to use as a back up for my Linux (Ubuntu 14.04 LTS at the moment) and my Mac Mini (running Mac OS X 10.9). I can do this perfectly at the moment, but I want ...
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28 views

How do I decrypt seczip AES256-encrypted files using 7-Zip?

Using 7za on SLES 11, how do I decrypt AES256 files? I have created these files on a mainframe using “seczip” with password protection and AES256 encryption. I want to decrypt them on an SLES 11 ...
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2answers
84 views

Is it possible to re-install an operating system over an encrypted system?

Scenario: I buy old PC/laptops, fix it and then resell them. I recently got a laptop at an auction with the whole system password encrypted McAfee Endpoint Encryption. Windows does not even load. I ...
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0answers
15 views

Encrypt single files easily [duplicate]

Right now I am using truecrypt to share files over dropbox but having the set container size is very annoying because dropbox has a limit to storage. I am looking for a way to encrypt individual files ...
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2answers
38 views

Is it possible to decrypt files which were encrypted by gpg with a very strong password?

I have encrypted my important files by gpg with a 32-length password, includeing upper-case characters, numbers and some special characters. I have stored them online so they can be download by ...
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0answers
16 views

Truecrypt - cannot resume encryption?

I started encrypting a 'non-system partition' and deferred it. I later initiated "create volume" a second time and encrypted a different drive. But now I am forced to format the previous drive and ...
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0answers
31 views

GRUB2 + encrypt. /boot: Load cryptkey from usb

Grub2 allows to encrypt the boot device with LUKS. Booting the system, it shows a prompt for entering the passphrase. In my case, the passphrase should be secure, so it is very long. Is it possible - ...