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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Why do I need a certificate to create my own other self-signed certificate

In the last few days I was trying to understand the story of certificates, and I understood the main principle of them, but I didn't understand that step when we create a CA cert to sign my own server ...
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1answer
24 views

Is it possible to encrypt an email for two keys but the same email?

I started using Enigmail with Thunderbird to encrypt and sign my mails. It works fine with my brother and some other people. Yesterday I got a reply from someone with whom I did communicate via ...
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1answer
58 views

How does ransomware work? [closed]

If it's possible to get a full rundown on how ransomware usually works in encrypting files, that would be nice. I know ransomware encrypts all files with AES-256 for speed, but where does RSA come in?...
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1answer
197 views

How to get the data off of a ReadyNAS drive?

I have a Netgear ReadyNAS Duo network backup system with two drives in it. The data is accessible through the network, but when I remove a drive to get the data off in another computer, it shows that ...
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0answers
31 views

Unsafe Windows 10 filesystem rendered encryted folder inaccessible

I had a problem with my Windows 10. The shutting down process hang up and I had to force it to power down by pressing the Off button continuously. When I restarted, the computer did not start. I ...
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0answers
51 views

How to decrypt an individual file from a BitLocker encrypted usb

I have a USB drive that I recently encrypted using BitLocker On-the-go, I accidentally deleted a file on it that I needed and so I used recuva to restore the files. The files were in perfect condition ...
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0answers
33 views

How to manually mount an encrypted filesystem under Linux Mint

I have a problem on Linux Mint. It seems that the partition containing my home folder is full. This partition is encrypted... This prevents me from starting Cinnamon (because it tries to write in a ...
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0answers
136 views

Mount encrypted partition after login (LUKS/pam_mount)

During the installations of Fedora 23 I have chosen the option to encrypt the /home partition. As expected, I am asked now to enter the passphrase before the login appears. Now, I have to achieve that ...
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1answer
59 views

Is the Windows paging file safe in the encrypted partition?

I came across this setting called ClearPageFileAtShutdown. The setting is described here and says: If you are truly worried about security, boot Windows off a fully-encrypted drive. Then you needn'...
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2answers
223 views

Cannot connect with WPA2 (AES) encryption + EAP-TTLS PAP with FreeRADIUS auth

I successfully set up an enterprise Wi-Fi connection with LDAP authentication by way of FreeRADIUS. I used EAP-TTLS PAP because I have hashed passwords in my OpenLDAP directory. When I use TKIP ...
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0answers
250 views

Save username and password of openvpn in encrypted format

While searching on internet I have found that we can automate vpn login via editing config file through adding auth-user-pass login.conf and create login.cnf file and add your credentials in pure text ...
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1answer
48 views

How to allow pam to execute mount

I am trying to setup ecryptfs on my Gentoo system, but I am constantly getting to issues with automounting the home folder. ecryptfs works in the way that there is a password file encrypted with user'...
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2answers
167 views

Linux as a hidden operating system in Truecrypt?

I know, for example, that you cannot encrypt a system partition with Linux on it, only with Windows, if you have only one OS. But I wonder if you can use the "Hidden OS" feature and make Windows your ...
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0answers
26 views

Recovering files after resetting Windows when using Bitlocker?

I was asked to help recover files from a Windows 8.1 notebook by the owner's family after he passed away, but he had used a Microsoft account as his Windows account, so the entire drive was encrypted ...
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1answer
51 views

Linux Private RSA key secure storage

I have 3 devices: A, B and C Device A is in my possession, device C is an unknown target device on the same network as device B, which acts as a relay Between A and B there is public key ...
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1answer
75 views

Storing EncFS's config file in SmartCard/Token

I used to store a random generated keyfile in a SmartCard and TrueCrypt was able to access this keyfile using PKCS #11. I'm trying EncFS now. Some people complain about it storing some of its ...
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2answers
50 views

Is this Private key *really* encrypted?

I have used PuTTYgen to generate two keys to be used in SSH communication, when doing so I added a password to protect both files. This password works, as it is required when opening the .ppk in ...
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4answers
74 views

How to password protect a single folder on Ubuntu?

I need to password protect a single directory on Ubuntu. 1. The folder must be encrypted. 2. Be easily accessed on a regular basis. 3. If possible, the folder should be portable. How can I achieve ...
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0answers
83 views

Portable method for encrypting a usb partition that works on Windows and Linux

I am looking for a good (and secure) way to encrypt a single partition of a USB-drive that will work for both, Windows and Linux systems. At the moment I have a 64GB USB 3.0 that is split up into 3 ...
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1answer
99 views

I've forgotten my bitlocker key and password, is there a way to get my computer running again?

My brother was playing games on my Surface RT (mainly only used for Steam games) and he messed with some settings and managed to enable Bitlocker encryption without my knowledge and he has no idea ...
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2answers
265 views

Can I determine a ransomware decryption key, given an encrypted file and its original?

I've recently been victim of a ransomware attack. I lost some of my files because but I have some of them backed up. If I have for example, the same txt file, one of them encrypted, and the other, ...
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0answers
10 views

Unable to Install Windows 10 Pro, version 1511, 10586, System Partition Encrypted w/ VeraCrypt [duplicate]

I have a laptop running windows 10 Pro, The system drive has been encrypted with VeraCrypt. I am unable to get the update 'Windows 10 Pro, version 1511, 10586' to install. Each attempt at installing ...
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1answer
16 views

How do most encrypted drives work?

I'm considering a move to hardware encrypted drives. How do these usually work? I have trouble imagining a drive that self-encrypts. Where do the keys go? It's OK to generalize the answer but I'm a ...
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0answers
9 views

7zip - Encrypting and compressing each file in a folder while maintaining directory structure [duplicate]

Say I have a directory structure like this: - main folder - folder 1 - file 1.txt - folder 2 - folder 3 - file 2.txt - file 3.png - file 4.txt - file 5.jpg I'd like to ...
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1answer
58 views

Does a proxy server protect my download habbits from my ISP?

If I torrent files and access websites through a proxy server, can my ISP see what I am up too and the websites I'm visiting (SSL and non-SSL)? Also, would a proxy suffice or would a VPN be more ...
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2answers
74 views

Linux whois over https?

I am not using a VPN or other SSH/tunneling protocol. I would like to encrypt whois queries made via the terminal. It appears that using whoisin a linux terminal queries over an http connection as ...
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0answers
21 views

Laptop for repair: Encrypting operating system volume from another Windows 10 instance

My ASUS TP300LA hybrid just won't boot ( turns on, HDD on, screen seems to be powered up as there's a flicker when turning on machine - but won't finish POST and display ASUS logo, just hanging in ...
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0answers
34 views

Unable to mount ecryptfs home, after years of uninterrupted work

I have old machine with Ubuntu updated from 11.04 to 15.04, with encrypted $HOME like described here. Around two-three years after installation (around about one year or two years ago) username was ...
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1answer
500 views

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 ...
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34 views

EFS File encrypted with “System”

We're trying to set up EFS to secure a file share so that only a service account can access the files in it. Everything works fine, until we try to have an FTP process send files to the folder. ...
3
votes
1answer
700 views

How would I encrypt my whole Linux filesystem with Veracrypt?

I'm running Kali Dojo 2.0 and I'd like to encrypt the entire drive. I've encrypted my Windows 7 Home Premium drive with Veracrypt, and it was a simple setup and I'd like to do something similar on ...
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115 views

Debian: grub-install with LVM, crypto, and stripe

I'm working on getting Debian 8.2 installed on my system, and am having trouble with grub. It looks like the OS installs fine, but once I get to the first boot, I just sit at a grub prompt. Here's ...
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1answer
50 views

Encrypting files in Mac OS: Are there any possible security issues with the AES - DMG encryption method via DiskUtility?

I was wondering how the 256-AES encryption method contained in DiskUtility in Apple Mac OSX works compared to other open source encryption applications out there. This method is found under the Disk ...
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52 views

What is the fastest and best encryption application for large files in Mac? [closed]

I currently have some large video files that are around 27 GBs each. I was wondering if there was a fast and secure method for large file encryption. My goal is to encrypt these files and then upload ...
3
votes
1answer
68 views

Bruteforce unknown encryption of expired PDF

I have an encrypted PDF. I have the password for it. 8 alphanumeric characters. But I think when you open it, it makes a connection to a DRM server to check if the content has expired, which it has. ...
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0answers
418 views

A really secure file encryption solution [closed]

I, as many others, used TrueCrypt. It's not a good solution anymore because all encrypted files are stored in a single volume file. I also used BoxCryptor, its advantage is that it encrypts each file ...
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votes
1answer
22 views

the system won't accept my encrypted volume

my volume just stopped working 3 weeks ago. It won't accept the password what is actually stored in the keychain. Strange thing is i can change the password in disk utility. I started to recovery all ...
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0answers
294 views

“Encrypt contents to secure data” is grayed out even after regedit dword is set to 0

My Encrypt contents to secure data is grayed out on my computer. I have already gone: Into the regedit and set NtfsDisableEncrypton to 0 and rebooted. To Admin Tools > System in Control Panel and ...
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25 views

Can't decrypt immediately after encryption

I want to use GPG to create an encyrpted backup. I am testing the encryption before I use it and it's not working like I expect. I am using this script to test it: gpg --gen-key gpg --encrypt $0 ...
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1answer
113 views

There are no decryptor tools for CryptoWall, right?

Just want to make sure there is no decryptor tools (those that use leaked private keys) for the CryptoWall variation of the virus before we go and do the undoable? And are there any cases of people ...
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0answers
130 views

How to fix boot sector of encrypted system without decrypting it?

Let's have a following problem: Encrypted system partition with Windows 7 via VeraCrypt with somehow broken boot sector (I suspect this happened after using Xubuntu - so either Linux version of ...
0
votes
1answer
75 views

USB drive software encryption?

I would like to easily encrypt/decrypt a USB key on my PC. I used to use TrueCrypt which appears to be not secure anymore. I found an alternative named VeryCrypt, but, I would better trust a low ...
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votes
2answers
84 views

How can I protect a hard disk being read when drive is inserted into another computer without using encryption?

Besides using an encrypting-filesystem on-disk, what other options are there for password-protecting a hard disk, so that when it is removed from a computer's encasing or laptop its contents cannot be ...
4
votes
1answer
23 views

Using libjasypt on Ubuntu

When I install libjasypt with Ubuntu, where does it install, and where can I find the encrypt/decrypt.sh scripts? I used the following command to install jasypt. sudo apt-get install libjasypt-java ...
4
votes
1answer
447 views

Why does BitLocker want a recovery key instead of a password?

I have a .vhd image of a BitLocker encrypted drive. When I mount and double click the drive, BitLocker wants me to enter a 48-digit recovery key and doesn't ask for a password. Why is that so and ...
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0answers
32 views

Corrupted external ssd after connecting to windows

I have a samsung external ssd with password protection. This ssd was formatted on a mac. After connecting it to a windows pc (which failed) I am no longer able to access any of the data on the ssd. ...
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1answer
366 views

Encrypted /boot in a LUKS LVM Ubuntu installation

I have Windows 8.1 already in UEFI mode. I was installing Ubuntu 15.10 from within Live install. Installation was successful when I kept /boot unencrypted. Here is the scheme: sda1 400MB Reserved ...
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0answers
77 views

Setting up secure email on Thunderbird

I'm trying to set Thunderbird up to send/receive encrypted emails. Here is a screenshot from the screen where you can select certificates: However, it doesn't really explain the difference between ...
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0answers
40 views

Mail encryption on Windows RT

Is it somehow possible to use mail encryption preferably via GPG on Windows RT? Since on a Windows RT Surface tablet you only have access to Windows Mail as an app in the store, there is no fancy ...
2
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1answer
45 views

Can BitLocker be forced not to use the TPM when one is available?

I have a Dell D420 laptop. I want to encrypt my Windows 8.1 installation using BitLocker, however this computer appears to have a TPM installed and I do not want to use it. BitLocker keeps telling me ...