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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Backup EFS encryption key generated, but no encrypted files? Track what caused the key creation

In I started getting a weird message "Encrypting file system - Back up your file encryption key" a user experiences a prompt that I also experienced yesterday for the first time. Now the ...
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1answer
39 views

How to avoid having users enroll for multiple certificates?

I am the domain administrator of my company. Recently one of my clients has re-installed his Windows and received a new certificate from CA, but the key pair of certificate is not same with previous ...
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2answers
960 views

Encrypt file using PGP/GPG having multiple recipients [duplicate]

I have used GPG for some time and know a little about the inner workings. For example I know how to encrypt a file with your public key so only you can open it with your private key, neat. But ...
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2answers
308 views

SQL Server Database Encryption [closed]

Let's say two programmers are working on a website for a store. They've created a small database for an online store. Users would have to register and provide a username(e-mail address) password,home ...
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29 views

Mount encrypted volume before / during login

To reduce impact of possible computer theft, I would like to have my user profile protected using a robust encryption, so that even if someone can get a physical access to my computer, he will not be ...
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1answer
160 views

Is my data gone after unplugging my external hard drive while formatting with TrueCrypt?

I unplugged my external hard drive while it was being formatted 30 seconds in, using TrueCrypt's Volume Creation Wizard. I unplugged the external while it was actively being formatted because I ...
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1answer
36 views

GnuPG: Get Public Key/Fingeprint from Encrypted mail

I have received a GnuPG encrypted mail which i cant decrypt: -----BEGIN PGP MESSAGE----- Charset: ISO-8859-15 Version: GnuPG v2.0.20 (MingW32) Comment: Using GnuPG with Thunderbird - ...
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0answers
205 views

Poor write performance on ecryptfs

I did a bit of benchmarking with ecryptfs and dm-crypt, and got some interesting results. All the following were done with a Btrfs filesystem, using dd to copy a ~700MB file to/from a ramdisk with the ...
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1answer
257 views

Why does Twitter Bootstrap look like it's encrypted in Windows explorer?

I'm a little perplexed, I run Windows 7 Professional N 64-bit and just downloaded the precompiled Twitter Bootstrap library from their homepage. On extracting, I was given a prompt to backup my ...
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1answer
246 views

Is there a way to use a keyfile with TrueCrypt full disk encryption?

Is it possible to completely encrypt a drive using TrueCrypt and then being able to decrypt it using a keyfile at boot time?
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3answers
891 views

Why can't SSH tunneling be used for SIP VOIP encryption?

On http://www.voip-info.org/wiki/index.php?page_id=2716 it says "Note that SSH tunneling is not a viable method for VoIP media path encryption." Why can't SSH tunneling (as opposed to a VPN) be used ...
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75 views

Incremental backup of unmounted encrypted hard drive / container

I am setting up my system from scratch and want to do everything right from the start. Since my computer contains documents from work, I need to encrypt. So far, I always encrypted my entire ...
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62 views

Encryption software that allows for password OR keyfile

My requirement is that my Windows 8 laptop should be encrypted (whole system drive) and ask for password on boot, except when it is docked in a specific docking station. If docked, it should boot ...
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1answer
51 views

pgp semaphores management on linux

I've an issue with pgp semaphores management. As far as I see pgp (version 6.5.8) creates 4 semaphores while starting to encrypt the file but only 2 of them are then destroyed at the end. To ...
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0answers
44 views

Green Encrypted Files and Folders for No Reason

Recently i upgraded my XP to Windows 7 (Clean Installation) now i have problem to access my files and folders in my hard. It's All greened and encrypted for no reasson! I didn't change anything before ...
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1answer
113 views

TOR and Unencrypted HTTP Traffic [closed]

If the NSA has pinpointed certain people using TOR, is there a way to encrypt unencrypted web traffic? I suppose this is kind of a dumb question that answers itself, as once it leaves the exit node, ...
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2answers
197 views

How can I get Dropbox not to sync a particular folder that doesn't have read permissions?

I am using Dropbox 2.4.10 on OS X. I use Spotlight with an encfs-encrypted folder inside my Dropbox, which is mounted with the -o local option to get it to work on OS X 10.9 (see here). As a result, ...
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1answer
36 views

Installed #! Linux with encryption; computer no longer boots

I am rather stumped as to what to do at this point. I installed #! Linux with the encryption option (using whole disk). Afterwards it installed grub as well. The computer no longer boots at all ...
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0answers
29 views

Cloud encryption - offline usage in mobile

I really apreciate the benefit of cloud storage, but I'm considering to put an dditional layer of encryption between me and my provider. I want to sync a directory between a tablet(ipad), a ...
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2answers
66 views

Will TrueCrypt cause problems on a CrashPlan backup destination?

I recently began using my home computer as a remote backup destination for my "server" at work. I'm using CrashPlan, which is working quite nicely. I also have my personal files on the same drive, ...
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1answer
105 views

Is anybody aware of an application that does what FreeMyPDF.com does (frees 'secured' PDFs) [closed]

The site works smooth, but I have so many PDFs I want to break that batch processing would be truly ideal. I already tried Free PDF Unlocker and it didn't work.
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0answers
209 views

S/MIME email Public Certificate?

Is there a way to create a public certificate for a S/MIME email certificate? I would like to share the public key on my website so people can send me encrypted emails. However I can only find ...
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1answer
1k views

Truecrypt Rescue disk unique for each system?

I want to decrypt an external USB harddrive wich I have encrypted using Truecrypt system encryption. I want to use a laptop for this which harddrive is also system encrypted using Truecrypt. Both are ...
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1answer
27 views

Client files need encryption

I store client files in my office computers and the staff need to have access to these files. The client files have to be kept completely confidential due to personal data. So far, I have used ...
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1answer
38 views

D-link router interupting Internet connection

This message appeared on a wireless connected PC, then on the host Mac computer: Authentication Required A user name and password are being requested by .... The site says: RE1000 Was ...
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1answer
653 views

Can TrueCrypt automatically dismount a volume when laptop shuts down?

I created an encrypted volume in a partition in my laptop. But I'm worried to forget to unmount it when I close the laptop (which may put it in standby or hibernate) and somebody be able to hack ...
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1answer
66 views

Do any one way encryption schemes exist?

I want to use services such as Boxcryptor and Spideroak, but I don't trust the clients not to send the key to the NSA. Is there any way I can provide a key that cannot be used for decryption? I ...
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0answers
63 views

How to verify a digital signature in pgp?

I am very inexperienced with cryptography, please answer using minimum technical terms. I encountered this site. The person claiming to be the owner of this site published his signature in pgp to ...
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1answer
31 views

Windows encrypted files is readable

When I encrypt a file and send it through the network to another computer it is not readable just like it should be. Same, if I share it with a memory stick it stays unreadable for the other ...
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1answer
530 views

How can I unlock my encrypted locker (with the FLKA file extension) if I forgot the locker password, but have the master password?

I am using Folder Lock 7.2 on Windows 7. I have the master password, but I forgot the locker password. I tried all the passwords which I usually use as a password, but they're all useless. I'm ...
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1answer
57 views

Full-disk encryption without reinstalling Windows?

I’m looking for some best practices for full-disk encryption (without having to reinstall Windows). Is it possible to encrypt only user profiles? What tools are necessary? Can I encrypt a whole drive ...
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0answers
70 views

how to ensure large encrypted files are not corrupted over time?

I created a 20GB truecrypt container file. I use it to store videos. I store it on an external drive that is always connected to my Win7 daily PC, and only occasionally mount this container file with ...
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0answers
42 views

LMDE .profile: {truecrypt /media/SDHC/user.tc /home/user} causes login window to appear twice

The goal is to make a portable profile in a truecrypt container, but I imagine it requires modifying every system I use with the container to work like this. The issue at hand is what I'm not ...
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32 views

Recovering EFS files from an unbootable Windows partition

I have several folders that were accidentally EFS-encrypted because of a bug in Windows' built-in zip extraction function ...
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1answer
99 views

How can I utilise unused space on a large network in a decentralised yet resilient manner?

I administrate a large windows network and I would like to make use of the unused space on the workstations, is there a free way to do this? Let's say we have: 200 Windows workstations each with ...
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1answer
109 views

Enigmail: don't decrypt automatically

I am using Icedove 17.0.10 (Thunderbird) with Enigmail 1.5.1. It used to be, that when the option Automatically decrypt messages was disabled, any encrypted email was displayed in the encrypted form. ...
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1answer
261 views

Truecrypt file containers suddenly empty

I have multiple truecrypt file containers on my Google Drive. They all contain lots of files and folders that has worked well over the last 18 months. Today I reinstalled my PC and went from Windows ...
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1answer
348 views

Secure a server - Raid-5 encrypted with BitLocker? [closed]

I look after a small office, and when I say small I mean SMALL. The have a 2008R2 Windows Server running a domain and shares for about 10 people. They handle some pretty sensitive information so ...
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26 views

Windows 7: encryption key deleted

last weekend I installed Windows 7 64 bit Home Premium (C:) (before it was Windows 7 32 bit) and forgot that one folder (on D:) was encrypted. Without the windows encryption key I can not access the ...
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576 views

Automatically mounting an encrypted USB disk at boot

I've followed these steps to set up an encrypted USB hard disk on Lubuntu 13.10, and these to unlock it with a keyfile instead of a passphrase. I now have a disk ...
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1answer
109 views

How to make data unreadable for certain amount of time, that it can't be read until months/years passed? [closed]

Is it possible to make a "data time capsule", that can be opened only after some amount of time have passed, even for person who created that data? If so, how? I was thinking about encryption with ...
0
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3answers
95 views

how to encrypt a PDF file with a password?

I am looking to encrypt a PDF file with a password. My question is two-fold: is there a good software to do that for Mac OSx? I saw Acrobat has commercial software for that, but I am looking ...
0
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1answer
291 views

After mounting container as drive in Truecrypt , Windows says drive is not formatted

I created a container using truecrypt long time back , and I used to mount it whenever I needed , until one day I decided to format my laptop. So I took backup of the file container to a USB drive. ...
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0answers
23 views

Damn Small Linux: aes module not working

I try to get losetup with aes encryption working on a Damn Small Linux 4.11 rc2, but without success: # modprobe aes $ dd if=/dev/random ibs=512 count=256 of=crypt.img # losetup -e aes /dev/loop0 ...
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0answers
32 views

z7 file just takes me to my download page and won't open

I tried using the zip 7 program to place passwords on some of my files, and it worked fine, until yesterday. I would go to the program, in my program files, click on it, and it would bring up the ...
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0answers
28 views

USB drive with standard and encrypted Linux partitions

I'm trying to set up a USB device that works as a normal USB drive under Windows, but also has a complete encrypted Linux system installed along side of it. Basically, I want a standard partition that ...
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1answer
211 views

What Encryption Methods do sites like Paypal, Ebay, and Amazon use? [closed]

Adobe's recent leaking of 150 million credit card numbers is unforgivable considering they used encryption that will be cracked in no time. Fortunately, I only had an Adobe forum account with zero ...
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1answer
291 views

Intel Rapid Storage Technology (HDD-Cache on SSD) compromising Truecrypt?

I run a Dell Vostro with a HDD, accelerated by Intel Rapid Storage Technology caching on the (much smaller) SSD. I intend to encrypt all partitions with TrueCrypt, but I have no access to whatever is ...
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648 views

EFS not available on Windows 7 Home Premium: workarounds?

This may well be an easy question to answer. I am running Windows 7 Home Premium and my hard disk's file system is set to NTFS which in theory should support EFS. However I've read that EFS is only ...
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0answers
120 views

What causes TrueCrypt to fail to load operating system during pre-test?

I have been installing full disk encryption (FDE) on multiple computers and have record of 3 out of 163 computers failed. They all failed at the exact same point and I have no clue why or how to ...