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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291 views

How do I make an encrypted disk image on Debian?

I'm basically looking for an equivalent to OS X's encrypted sparsebundles. The solution should have support for file ACLs and should not force me to specify a size in the beginning (the image should ...
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0answers
382 views

Troubleshooting TrueCrypt AES pretest errors

Every time I try full system encryption with truecrypt (AES) I'm getting a 'pretest failed' message after my test reboot. The thing is, nothing actually fails, I get a password prompt from the boot ...
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0answers
881 views

Outlook 2010 Cant't Read Encrypted Email, But Send

I upgraded my desktop from Outlook 2007 to Outlook 2010. Now I can't read encrypted emails; they appear as a blank body. I tried every help in the internet, but most of them point you to your S/Mime ...
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1answer
1k views

How to encrypt dual boot windows 7 and xp (bitlocker, truecrypt combo?) on sdd (recommended?)

I would like to setup a dual boot Windows 7 and Windows XP laptop/notebook computer where each operation system's partition is fully encrypted. I would like to do this on a SSD - a 128Gb Crucial M4. ...
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2answers
2k views

Encrypt Windows 8 file history

File history in Windows 8 is great, but it saves my files on an external drive without any encryption, and stores them using the exact same folder structure as the originals. If a bad guy gets his ...
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1answer
793 views

Which SSD controllers don't use compression?

I'm in the market for an SSD, but I haven't found any information on which SSDs do NOT use compression on the controller. The system it will go into requires full disk encryption (provided via ...
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1answer
641 views

truecrypt hidden volume as main disk on linux

If you've read Cory Doctorow's Little Brother (a wonderful novel, by the way) you'll know that the main character sets up a Truecrypt-esque hidden volume on his phone. It opens to the login prompt, ...
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6answers
10k views

Wipe RAM on shut down to prevent Cold Boot Attack

My system is encrypted using Full Disk Encryption, i.e. everything except /boot is encrypted using dmcrypt/luks. I am concerned about Cold Boot Attacks, where researchers demonstrated, that content ...
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1answer
96 views

File encryption software with wide compatibility?

I have an external HDD on which i keep most of my personal stuff. I primarily use windows and linux but i also plug it into my android tablet. any software which can run on these platforms will be do. ...
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2answers
2k views

I've lost access to my encrypted files

I have an account on Windows Server 2008 R2, which at the moment I am using as a desktop. I had certain files encrypted under a standard user account. I changed my password, and then lost power ...
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1answer
2k views

Is there an rsync alternative, that stores compressed and encrypted?

I'm looking for a suitable off-site backup / file synchronization solution. Both local client and remote server run linux. Storage space on the server is limited, bandwidth between client and server ...
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5answers
23k views

is there a way to stop mac osx disk encryption in progress?

I chose a 1T external drive for time machine and checked the "encrypt backups" option. I thought it will only encrypt the backups, but as it seems it is now encrypting the whole drive which has quite ...
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1answer
589 views

How can I automatically synchronize a directory tree on multiple machines?

I have two Mac laptops and a Debian server, each with a directory that I would like to keep in sync between the three. The solution should meet the following criteria (in rough order of importance): ...
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1answer
97 views

How do you deal with PGP + Drafts in Thunderbird?

I'm having trouble trying to setup a secure email client. I have marked an option to always encrypt emails by default. But they only get encrypted right before being sent, so sometimes a draft is ...
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1answer
863 views

LVM needed for encrypted, expandable RAID?

I am currently building a RAID-5 with three 2TB HDDs on Debian. I am wondering how I could configure my RAID to be encrypted and expandable in the future. I do not need nor want partitions, but must I ...
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1answer
564 views

How can I use a PGP key on Windows to sign/verify and encrypt/decrypt documents?

Occasionally I need to encrypt a file, cryptographically sign something, etc. GNU PG and PGP are good tools for this, but how can I get them working on Windows? When I try to search for an installer, ...
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1answer
596 views

Confluence inline encryption / Form encryption

we are running a confluence 4.2.3 installation as our primary wiki. Even if we make use of page permissions and user management, we still can not store certain kind of data in the wiki like ...
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3answers
4k views

How does Microsoft Remote Desktop Manager encrypt passwords?

When storing connection passwords, MS RDP provides the ability to store the password as either clear text or to encrypt it. Thr resulting node in the file looks like <logonCredentials ...
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2answers
187 views

Is it secure: Storing an unencrypted keyfile in a volatile location?

I have multiple hard drives that should all be encrypted with the same keyfile or passphrase. Here's what I planned as an approach: I encrypt every hard disk with LUKS / cryptsetup and choose a ...
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4answers
4k views

OpenSSL hash function for generating AES key

What hash function does OpenSSL use to generate a key for AES-256? I can't find it anywhere in their documentation. $ touch file $ openssl aes-256-cbc -nosalt -P -in file enter aes-256-cbc ...
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2answers
1k views

Mutt with GPG Password Protection

I got Mutt working with the default IMAP password management configuration with this line in my config: set imap_pass = XXXX Which is obviously not secure. I looked at this ...
5
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1answer
755 views

Encrypted USB flash drive and wear-leveling [duplicate]

Possible Duplicate: Does full-disk encryption on SSD drive reduce its lifetime? I would like to encrypt an entire USB flash ("thumb") drive (as sdb, not sdb1) with cryptsetup. Will this ...
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2answers
146 views

Send private file to newbie

There are a lot of ways of transfer a file in a secure way, but it's difficult to find a way of doing it which is newbie-friendly. For instance, suppose that Alice wants to send a confidential file ...
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1answer
179 views

In what real-life environments is GPG email signing used? [closed]

I've been using e-mail for over a decade in a regular business environment, but I can not remember having seen any invitation from anybody to GPG sign my e-mails (or somebody who offered to send ...
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3answers
1k views

Forgot passphrase for encrypted USB drive

I accidentally set a passphrase on my USB drive using Ubuntu Disk Utility and I don't remember it. I tried formatting the USB drive, but it doesn't allow it. I've tried to do it in both Ubuntu and ...
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0answers
236 views

Password protection without encryption

There are several ways of password protecting a file/folder on Windows, but all those methods encrypt the file, so a large amount of time is spent encrypting (like password protecting in WinRAR). Is ...
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1answer
4k views

WPA2 AES connection incredibly slow on new samsung laptop

I bought a new Samsung laptop a couple days ago, and have been struggling with my wifi connection ever since. I believe the problem arises after I install Windows updates from my laptop's factory ...
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3answers
14k views

Does full-disk encryption on SSD drive reduce its lifetime?

I would assume that a full-disk encryption deployment would introduce additional writes each time the computer is booted up and shut down. Given that solid state disks are considered to have a lower ...
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0answers
132 views

Is there any way to block all unencrypted connections?

I'm in the United States and I really don't think what I do is any of my ISP's business. No, I'm not doing anything illegal, I would just rather they not be watching everything. I tried TOR a few ...
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0answers
125 views

If a passphrase for a luks container is discovered, can that reveal another passphrase?

I've been looking for an answer for this scenario - say I've got a volume encrypted with a long passphrase. something like a skeleton key passphrase thats used for a number of volumes. This volume ...
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0answers
363 views

How can I make an encrypted email message into a .p7m file?

This is a bit complicated, so I'll explain what I'm really trying to do here: I have a Debian server, and I want to automatically email myself certain logs every week. I'm going to use cron and a bash ...
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1answer
280 views

Looking for an open source program to encrypt individual files [duplicate]

Possible Duplicate: Encrypting a single file with password and keyfile I really like truecrypt, but the only thing that I don't like about it is that there is no option (that I can see ...
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2answers
856 views

if one doesn't care about protecting a gpg secret key, is it still as secure as using gpg --symmetric?

Each of Alice and Bob is using gpg just to protect his/her own personal files and not using it as a way to send encrypted text to others. Alice has generated a key (gpg --gen-key) that she uses to ...
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2answers
279 views

Security and encryption with OpenVPN

The UK government is trying to implement man-in-the-middle attack systems in order to capture header data in all packets. They are also equipping the "black boxes" they will use with technology to see ...
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3answers
3k views

Finding a TrueCrypt volume on a lost partition

I had a 1TB hard drive that I created a 40GB TrueCrypt (non-hidden) volume (I did not back up the header but I still have the PASSWORD). The hard drive lost the partition and I have tried multiple ...
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0answers
109 views

Setup new Mac from encrypted timemachine

I was setting up my new Mac from encrypted timemachine, to my surprise, Lion start importing the files from timemachine without asking for the encrypted key. I couldn't find any documentation about ...
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2answers
410 views

How is data sent back from a server to my computer through tor?

I do know how Tor sends data to the destination server, but how does it know how to send it back to my computer when the project claims it does not keep any logs of connections. Furthermore, if you ...
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1answer
651 views

What free tool can be used to password-protect .pdf files without displaying password during entry?

What is a "good" tool to encrypt (password protect) .pdf files? (without being required to buy additional software; the protection can be created under linux but the password query should work on ...
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3answers
1k views

Does the use of Tor makes additional encryption unnecessary?

I know Tor uses encryption to guarantee anonymity, but I if wish to guarantee the privacy of my conversations should I use an additional layer of encryption? Can my home router or ISP intercept Tor ...
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2answers
150 views

Our company claims that the DLP system can even monitor the contents of HTTPS traffic, how is this possible?

There is software installed on all client machines for DLP (Data Loss Prevention) and HIPAA compliance. Supposedly it can read HTTPS data clearly. I always thought that between the browser and the ...
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1answer
791 views

File encrypted on old PC, need to decrypt [duplicate]

Possible Duplicate: Getting Through EFS (Encrypted File System) My dad encrypted a file on a PC running Win XP. He got a new PC running Win 7. There were some files encrypted using Windows ...
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1answer
286 views

How to encrypt email with recipient's key?

I need to send an encrypted email to someone who has published his key. He doesn't have mine, so instead of encrypting the email with my private key as usual, I think I have to use his public key. ...
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2answers
143 views

Protect opera user profile

Is it possible to protect or encrypt complete opera user file including bookmarks, history, settings etc. so, that a different profile can be used whenever needed? I wonder if there's a built in or ...
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1answer
1k views

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 ...
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2answers
4k views

Looking for command line encryption utility for Windows

I am looking for command line encryption utility for Windows - paid or free. Would prefer it to support AES-256. It has to be something with large user base and actively in development. Need to be ...
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2answers
599 views

Can I install fresh Linux accross partitions (LUKS & LVM) and preserve/use existing home user?

With an existing LUKS encrypted logical volume partitioned hard disk dual boot to Windoz and Linux (Fedora 15), is it necessary to "start over" with the LUKS setup when upgrading the system? I ...
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0answers
81 views

Photoshop with Bitlocker

I found this entry (Photoshop's activation software overwrites fixed drive adresses) in the TrueCrypt documentation that scares me quite a bit. How does Bitlocker handle this issue? Similarly, how ...
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3answers
1k views

Is it possible for my company to monitor my Gmail?

Since Gmail uses https, all the messages should be encrypted? Here we assume my company does not have keystroke logger or random snapshot software.
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1answer
6k views

How to make an encrypted sparseimage larger on osx

I have an encrypted volume on OSX Lion. How do I make it larger?
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1answer
530 views

Does VPN encryption consume traffic?

I noticed when i run streams that it's bitrate is close to my max Internet speed it lags a lot when using VPN but run smoothly without VPN. Bandwidth monitor programs shows that the speed through the ...