Security :: 5 Of The Best Free Disk Encryption Tools?
Apr 10, 2011
Quote: The importance of security should never be underestimated. The consequences of losing data can be disastrous for any organisation. For example, the loss of a single unencrypted laptop may have huge repercussions. This could include breaching data protection legislation with the risk of a significant fine, a loss in the confidence of an organisation, as well as the risk that sensitive data may fall into the hands of a competitor or third party with malicious intent.
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Nov 14, 2010
I do know about cold boot attacks. But I ran across a couple of posts/websites that had me wonder if it is possible, without the passphrase, to just remove the encryption?
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Feb 24, 2009
I was trying to install Fedora 9 on my new laptop that came with Win XP. I have selected the option to wipe out all partition and create a default layout with the Encryption option selected. But that installation got stopped on the middle, therefore I have started the installation again. This time it asked for the encryption password as expected but don't know why, its not accepting my password. I am 100% sure that the password is correct but it is not allowing me to enter into the hard disk partition section.
My question is, how do I remove encryption from my hard disk? I don't need to preserve the data, I just need to use my hard disk again. Is there any boot CD that allow us to format encrypted disks without prompting for a password?
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Jul 28, 2009
I have currently a file server that runs on Fedora 9, and all other PCs (mostly running Windows XP) access the file server via SAMBA. Everything works perfectly! However, lately a home invasion in my neighborhood got me thinking. If they take my file server, my data is not protected. So, I would like to implement the LUKS partition encryption (/home) which sits on a separate disk. However, I don't quite like the decryption process at boot time. In other words, I would like to wake up the file server (WOL) remotely, and when it's done booting, I would like to log-in using the other PCs and enter the passphrase remotely to decrypt /home. Is this possible using LUKS encryption (i.e., cryptsetup)? If not, what would be another alternative to what I am trying to do using a secure encryption (so that the data is safe from thieves)?
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Jul 31, 2010
Is there any way to remove the whole disk encryption without reinstalling? I'm running Ubuntu 10.04.
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Aug 8, 2010
Is there a way to change the password for the whole disk encryption?
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Oct 20, 2010
For some reason I can't find any documentation re: the algorithm(s) used by Ubuntu to encrypt the filesystem... Anyone know what it is?? AES?
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Apr 13, 2011
Is there a way to install ubuntu 10.04 or 10.10 with full disk encryption? I read how to do it in the 8.0 version, was wondering if it is still possible?
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Jan 13, 2010
this isn't really a security question, per se, so feel free to move. It is related to full disk LVM encryption though. Full disk didn't work for me with grub2 after running dd to a remote server, so I downgraded to grub1. No biggie. However, I have neither grub or grub2 as selected in Synaptic.Let's say I forget which I have installed. How would I determine what version of grub is installed at the moment. I'm assuming it's somehow installed on in the mbr but not on the OS. I didn't mean to do anything funky. Is that the normal setup? I'm deploying these systems to users and want to be able to troubleshoot issues in the future (hopefully that will not be needed!) grub --version does not work because it is not installed.
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Jan 18, 2010
I encrypted a harddisk via Disk Utiluty. What alogythm is it encrypted by now? Is it safe? What should I be aware about?
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Jan 13, 2011
I would like to request the software which can ensure the confidentiality of the files which stored in samba server.
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May 18, 2011
I've got a question on free disk space. I'm currently running CentOS 5.5 on in Xenserver virtual environment. We've had an issue with disk space. My question is as follows: - from a ssh connection i run df -h this gives the value of 90% used leaving me with 9GB. If I use system monitor via a VNC connection the free disk space value is 20GB free on the same volume. Which one is correct? I do use SNMP to monitor the same volume and should alert me when < 10% is free I know this works as I set the alert threshold to < 90% I get an alert.
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Apr 16, 2011
I just wanna know if anybody know what type of free VPN tools on Fedora that you use? Previously on Windows I use PackectiX. So what now on Fedora?
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Mar 6, 2010
Is there anyway I can remote in to a fedora machine via a Win 7, Vista or Server 2008 machine and have the gui desktop? I can vnc to it but it's command line only.If possible, I'd like to use the defacto std tool called remote desktop installed with the win os.If not any are there any open source-al free tools I could install on win to get this functionality?
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Apr 19, 2011
I am looking for free and well known fax command line tools for receiving and sending faxes I wan it to save receive faxes in pdf format with file name included with caller phone number and date of receive:
Quote:
for example:
5566545544-2011-5-11.pdf
and any other format that I want.
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Jun 7, 2011
I am not very security minded...I'm aware of it, and always made sure I had up-to-date overall protection in Windows but firewalls, and the blasted passwords are largely a thorn in my side!When I got my iPhone last year I suddenly discovered password managers & "wallets" to keep all that kind of information in and syncable across different devices. My life got so much easier. Of course now I need to figure out encryption keys, and how they work (I'm clueless). I also need to find a program or system that I can move my existing low-tech info (mailnly user name & passwords) that will also accomodate the increased needs of Ubuntu security and still be sync-able. I started a little research weeks ago, but my current "wallet" only exports .csv so I quit since I'm going to have to do a lot of data entry whatever I go with.So here goes:
1) what is the difference (bare bones) between using an encryption key (e.k.) vs. a standard user created password? what situations are better suited for e.k.?
2) I have seahorse (default intall with Ubuntu I guess) but the only thing in it is Login under passwords which leads to a login keyring (?) and a drop-down list of about 6-10 of the gazillon passwords I use daily. The other tabs are for keys which I don't have any concept of.
3) I know FF also "remembers" user id & passwords as you choose to have it do so. Is that information transferable into seahorse or another program?
4)I'm also (today) getting ready to really set up my system for user names & security across my little home network. How can I integrate that into whichever program/app I go with to store my pwds and keys?
5)give me links to fairly current documentation on this stuff?
6) Any program/app recommendations.Pros/cons uses, what they can & can't do or be used for, etc.
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May 22, 2011
love security/pentest tools. This script adds ALL the tools from the Security Spin, plus Metasploit. Feel free to modify it if need be.
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Jan 2, 2010
I'm running mythbuntu 9.04 and am having an issue with disk space.
I try 'rm' various log files but the space I free up lasts less than a minute before the disk reports as being full once more.
df -Th | sort gives:
Quote:
/dev/sda1 ext3 8.3G 7.9G 0 100% /
/dev/sda6 ext3 138G 125G 6.3G 96% /music
/dev/sda7 xfs 783G 617G 167G 79% /videos
/dev/sdb2 xfs 344G 242G 103G 71% /recordings
[Code]....
There's nothing enormous in /var/log and my trash and the root trash are empty.
why size and used fields are not the same despite 100% usage being reported on sda1..
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Dec 23, 2010
I am building an active directory and using BIND9 as my DNS. To allow for secure dynamic updates from the domain, I am enabling GSS-TSIG as detailed here and here. Unfortunately, some of the commands and configurations used here seem to be depreciated, at least in the newer versions that I'm using. My issue is one of keytab encryption. I generated a keytab using ktpass.exe on the Windows Server 2008 domain controller. I have tried DES/MD5, AES128/SHA1 and AES256/SHA1, each have been turned down by ktutil on the kerberos server (FreeBSD). Each time, it outputs the following error: ktutil: AES256/SHA1*: encryption type AES256/SHA1* not supported *Respective to encryption used.
I cannot find a list of suitable encryption schemes that ktutil will accept. The FreeBSD handbook details a means of producing a keytab file, but I'm not sure how to configure the Domain Controller to use the keytab.
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Jan 29, 2010
how much of a performance impact full disk encryption (say, AES 256-bit) has on disk-related activities? On one particular project I'm involved in I am trying to weigh out security vs performance issues.
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Oct 21, 2010
Which is the best whole hard disk encryption software for RHEL 4.6. Tried Truecrypt but was not success in making it work. First had issue with fuse version, then with glibc and etc.
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Aug 2, 2009
i want to deactivate disk encryption. How can i do that?
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Jan 25, 2011
Bitlocker is a harddrive encryption data protection tool which comes with Windows Vista Ultimate and 7. Does anyone know an equivalent for Linux distros like Fedora and Ubuntu?
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Jul 14, 2011
The only reason why I don't use Linux (even though I prefer Linux over Windows, and can do everything faster and more efficiently) is because each time I try to learn about dm-crypt I give up.
Can someone point me in the right direction for full OTFE on Linux (like TrueCrypt)?
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Jan 10, 2011
1. Fedora 14 has a user friendly disk encryption setup.However, there doesn't seem to be an option to change the encryption parameters during setup. Since I can handle the overhead, I would like to change the encryption algorithm and the key length for the default install.
2. I have created an additional encrypted drive (the entire HD) which claims to have its own encryption functionality (Seagate Constellation 1TB). Does Fedora use the built-in encryption mechanism by default? Is there any way to tell?
3. I can't seem to find any utility to tell me what the actual key size is for different HD's I have encrypted. "cryptsetup --help" seems to print out only the information for the default encrypted O/S which is the default 256 bit.
My problem is whether the -s option work when set to a 2,048 bit key length? Or, does it fall back to a 256 bit key length if it fails to do so? Or, does it automatically use the built-in encryption of the hardware? If the -s option doesn't work with a 2,048 bit key setting, can the kernel be recompiled to do so?
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Jun 14, 2010
i have found this xor encryption program
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_SIZE 256
[code]....
Its working fine, it can encrypt and decrypt. but how strong is it ? is it all depending on the specified key ?
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Oct 21, 2015
I would like to configure my Debian Jessie system in this way.
Two partitions:
1) /boot on /dev/sda1
2) everything else on /dev/sda2
I want to encrypt the second partition with LUKS. And then install over it a LVM volume. Inside the LVM volume i will create the / (root), /var, /opt and /home virtual partitions. In this way, i'll get asked only once for the password to decrypt all partitions. Because if i don't use LVM, then i'll get asked for the password for each encrypted partition.
I can follow and understand almost everything of this HOW-TO for Archlinux: [URL] ....
Only two passages are unclear to me:
1) Configuring mkinitcpio
I don't understand what i should do here in order to complete this. What should i do in Debian to configure "mkinitcpio"? what is the equivalent thing to do here?
I thought that the kernel would automatically recompile itself with all installed modules on the Debian system, once cryptosetup/LUKS or LVM2 get installed.
2) Configuring the boot loader
I don't understand what should i write in /etc/default/grub. Will GRUB automatically load the LUKS and LVM2 modules? Also, I don't think that i could boot the system in this way:
cryptdevice=/dev/sda2:LVM root=/dev/mapper/LVM-????
Actually the "root=" volume is the whole volume to mount as LVM. It isn't the final root partition.
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Mar 20, 2016
With all the talk about disk encryption for Apple devices, I wanted to ask about how full disk encryption compares between debian linux and mac OS X. Is the code for debian linux fully available for people to inspect for flaws or backdoors? Apparently although part of the encryption code is available for OS X the full code for Filevault 2 is not public. What are the advantages and disadvantages of each method of encryption for each operating system?
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Jan 10, 2011
I have a bunch of pictures that I thought I had backed up but as it turns out I didn't, the problem is I formatted the drive they were on.
It is a 1TB hard drive, and it was running Ubuntu 10.10 using full disk encryption from the alternate install CD. After formatting, I installed Ubuntu Server 10.10, also using full disk encryption.
I know the encryption key for both installs (and the keys in fact are the same).
I have turned off the machine, and have stopped writing to the disk. I am hoping because it is a 1TB drive, and I have only written over it with 2GB of data, that there is a chance I can recover the data.
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Jan 29, 2011
I managed to get a cheap refurbed netbook recently (Samsung N150) and I'm wanting to put Ubuntu on it. As it's also likely to be used when travelling and have things like chat logs, photos, and other such things I'd like to do full disk encryption. Also I've been pointed towards 10.4 as apparently the 10.10 netbook desktop isn't to everyone's taste.
So I tried using unetbootin to make a bootable 10.4.1 i386 Alternate usb stick, which hit the problem of no cd drive. I found an item to add to the boot (cdrom-detect/try-usb=true) which got it a little further, but at a copying stage it threw an error saying it couldn't copy off the disc.
Finally I tried making a unetbootin of the mini iso (does mini even support full disk encryption?) but that seems to hang after selecting a mirror.
EDIT: Well it seems I was just impatient on the mini ISO and after a few minutes it's gone onto time-zone, though of course this could get rather tiresome without a local mirror, especially given this may go through more than one iteration.
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