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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15
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12answers
2k views

What is the most practical security method for a home wireless network?

Quoting Ars Technica: Proper wireless network (802.11a/b/g/n) security is quite simply out of reach for most organizations. ... Given that WEP (both 64- and 128-bit), WPA1/2 (PSK), and ...
10
votes
5answers
2k views

How to encrypt an USB stick?

When storing personal data on a USB stick, data needs to be encrypted to ensure privacy. Regrettably, this is far from easy to do without introducing a lot of overhead; ideally, the whole encryption ...
1
vote
2answers
16k views

Windows 7 Encrypt Folder with Password

First of all, I am not on Windows 7 at the moment but will be in the next few days. I'd like to know if there is a way for me to encrypt a folder to prevent unwanted access, but still provide ...
37
votes
1answer
2k views

Short, easy to understand explanation of GPG/PGP for nontechnical people?

Does anyone have a link to a good, but short (1-2 paragraphs) explanation of the benefits of using GPG/PGP signing and encryption for Email focused at non-technical readers? That is, why would someone ...
5
votes
3answers
4k views

How to remove Encrypted flag when copying a file from a HDD to a USB drive?

Environment: Windows 7, but applies to other EFS-compatible Windows versions I have a file that is encrypted using standard Windows EFS encryption. When I copy that file to a USB drive using Total ...
0
votes
4answers
765 views

What can I do if I get a movie that is encrypted?

I have a movie and it is not working on KMP. This message appears on the screen: the video is encrypted please download codec How can I handle this?
47
votes
13answers
67k views

Which TrueCrypt Algorithm is the safest?

If performance is of no concern, which TrueCrypt algorithm is the safest to use? AES Serpent Triple DES Twofish AES-Twofish AES-Twofish-Serpent Serpent-AES Serpent-Twofish-AES Twofish-Serpent
41
votes
10answers
39k views

Speed of TrueCrypt whole disk encryption

I'm getting a new development laptop soon, and I'm thinking of using TrueCrypt to encrypt the whole disk. What kind of performance drop can I expect? 10%? 30%? More? Also, assuming the workload has ...
38
votes
6answers
20k views

What is better for GPG keys - RSA or DSA?

ssh-keygen defaults to creating RSA keys, but gpg --gen-key prefers DSA/ElGamal. Which one - RSA or DSA - is better for GPG?
11
votes
2answers
11k views

Using TrueCrypt (software encryption) with an SSD

I use full drive encryption (FDE) w/ TrueCrypt on my laptop. I have a 2nd gen I7 with AES instruction support, so honestly I can't even notice a speed change on the system with it on. My question, ...
33
votes
3answers
11k 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 ...
7
votes
4answers
31k views

How to access bitlocker encrypted drive in linux?

I have a laptop running windows 7 ultimate. I have encrypted my drives using bitlocker. Now I have also installed lubuntu along with windows. But my encrypted drives are not visible in linux. Hence I ...
4
votes
2answers
4k views

Encrypting a single file with password and keyfile

I am a fan of TrueCrypt and I guess it's the best encryption tool available. As far as I understand, TrueCrypt created encrypted containers which acts a place to store files. I would like to encrypt ...
16
votes
2answers
11k views

Is zip's encryption really bad? [closed]

The standard advice for many years regarding compression and encryption has been that the encryption strength of zip is bad. Is this really the case in this day and age? I read this article about ...
2
votes
6answers
1k views

How good is Word's password protection? [closed]

I have a password protected MS-Word 2007 file that needs to stay private. How good is Word's protection? If it's not very good, can you suggest a better method for keeping the file protected? EDIT: ...
6
votes
14answers
819 views

How to prevent my client from hacking into the demo computer I provide him?

I need to provide a customer of the company I work at, a laptop computer with a demo software that will run on it. The software is for display only and doesn't require any user interaction via ...
4
votes
2answers
626 views

Is it true that strongly-password-protected PDF can be cracked?

I want to protect my PDF with a strong password. But I heard that it can be cracked. Is it true that strongly-password-protected PDF can be cracked? Edit: This is my real scenario. I want to ...
3
votes
1answer
130 views

How can I encrypt my “users” drive?

I am currently running Windows 7. My User folder is mapped to a different drive then the drive that my OS in installed on. I mapped the users folder to the other drive while installing windows. I ...
3
votes
3answers
707 views

Encrypt time machine backups

What is the best way to encrypt backups made by Time Machine?
2
votes
1answer
5k views

Full disk encryption on dual boot system using TrueCrypt

I'm thinking about encrypting my whole harddrive for example using TrueCrypt, which I've used for encrypting file containers for a while. It is possible to encrypt the whole harddisk through the ...
-1
votes
3answers
379 views

Is there a license / royalty free DRM available for protecting and distributing content?

Is there a license / royalty free DRM available for protecting and distributing video content?
63
votes
8answers
28k views

Is TrueCrypt truly safe?

I have been using TrueCrypt for a long time now. However, someone pointed me to a link that described the problems with the license. IANAL and so it really didn't make much sense to me; however, I ...
40
votes
19answers
7k views

Can I encrypt data in a way that it can be read normally but can't be copied or edited?

I want to share my 500 GB hard drive with a friend but I want to encrypt it in a way that all data can be read normally but cannot be copied or edited in any way. Is that possible?
18
votes
16answers
11k views

How can clients easily and securely send me passwords?

I often need to get passwords from clients for FTP, SSH, MySQL, Authorize.net, etc. What's an easy way for them to send me passwords securely? Maybe even without them needing a login/password? ...
13
votes
6answers
14k views

How to list encrypted files in Windows 7?

I somehow encrypted some files without meaning to, and because of it I can't backup my user folder to Mozy. Is there a way to remove the encryption from all the files or at least find out which one ...
11
votes
3answers
4k views

How to mount an encrypted ext3 filesystem under OS X?

I know how to mount an ext3 filesystem in OS X with MacFUSE and fuse-ext2. But how can I mount an encrypted ext3 volume? I have Mac OS X 10.6 "Snow Leopard" running.
9
votes
4answers
6k views

How does Google Chrome store passwords?

Are they encrypted in disk? How? Are they safe, for example, in the event of someone booting from a Live CD and mounting the hard disk? How is the encryption key generated? Is it different in ...
7
votes
7answers
2k views

Looking for a USB Thumbdrive / Flash drive encryption solution (not TrueCrypt) [closed]

I am looking for a USB Thumbdrive / Flash drive encryption solution. I have searched the net but I have never come accross a solution which meets the following: Must handle at least 4GB volume If ...
2
votes
2answers
221 views

Encryption Program for Flash drive data

Is there a program that I can use to encrypt my flash drive? I would like to be able to access data from any computer, however, so the program will probably have to reside on the flash drive.
6
votes
2answers
7k views

Expand TrueCrypt volume on Mac OS

Are there any known solutions to manually or automatically expand a TrueCrypt volume on Mac OS?
3
votes
1answer
4k views

How to run an encrypted virtual machine?

I wonder what is the best practice for storing the virtual machine encrypted. I tried putting the image it a TrueCrypt volume, but it doesn't work nicely: With the volume unmounted the VirtualBox ...
1
vote
1answer
4k views

How to create a cross-platform traveler disk with TrueCrypt

I need to create a file-based TrueCrypt volume in a 32GB USB pendrive. If I wanted to access my files in offline computers, I'd need to include the TrueCrypt executable in the pendrive as well. I'd ...
1
vote
3answers
6k views

How do I prevent a disk from mounting?

I own an Iomega Prestige. The disk series includes a Virtual CD partition that includes a file encryption utility that can only be used on a Windows machine. Every time I mount the external drive to ...
1
vote
1answer
1k views

iPhone 3G backup encryption? I've never entered a password?

I can't unclick or access my backup iPhone encrypted file. For the life of me I can not remember ever entering a password for the encrypted iPhone backups. I've tried every password I've used or use ...
7
votes
3answers
3k views

Incremental (delta) backup of a encrypted data

I have several files that I need to keep encrypted on my home hard disk. I currently use a TrueCrypt file container, currently around 100MB in size. I need to backup this file daily, and I'm looking ...
6
votes
1answer
1k views

PGP encrypt single message for multiple recipients

Is it possible to encrypt a message using PGP so that multiple recipients (each with their own public private keypair) can decrypt it? I'd like to email one message which can be decrypted by each ...
2
votes
2answers
2k views

How can I take advantage of Full Disk Encryption used on SSDs?

Both my OCZ Vertex 2 240GB (with it's SF-1200 series controller) and my Intel SSD 320 support full disk AES encryption. I would like to use BitLocker on this laptop to prevent data theft, but ...
2
votes
2answers
1k views

How to restore encrypted files after reinstalling Windows XP?

So I had some encrypted files using the Windows file encryption on NTFS disk and I reinstalled windows xp. After that I logically couldn't access the encrypted files because of the encryption. Is ...
2
votes
3answers
311 views

Bios password protection

I have my system on drive C: and also I have all my important folders on drive D:. I want to lock this drive with a password. Any advice?
2
votes
3answers
8k views

How can I remove the password protection from a RAR archive? [duplicate]

I have a directory in which there are lots of password protected .RAR files/archives. The passwords of these individual archives are known. I want to remove the password protection from all of them ...
1
vote
4answers
865 views

encrypt my internet upload and download packets

Is there a software can help me to encrypt any upload or download made from the internet ?
0
votes
0answers
114 views

Repair Corrupt Bitlocker Files - Windows 8.1

In the past I have never used BitLocker, but recently I have become interested in setting it up on both my mom's computer as well as my own. We both had Windows 8 Pro on which we never used Bitlocker, ...
10
votes
5answers
4k views

What is the easiest way to encrypt a dir? (on Ubuntu)

What is the easiest way to encrypt a directory on a Ubuntu based system? Let's say I have a laptop that is running Ubuntu 10.04, and on that I have some documents that should be kept safe (if I lose ...
8
votes
3answers
8k views

Simple built-in way to encrypt and decrypt a file on a Mac via command-line?

Are there any built in command-line tools that I can encrypt and decrypt a text file (and provide it some sort of password).
14
votes
3answers
8k views

GMail and SSL Encryption - how much is encrypted

It's strangely difficult to find out exactly how SSL works with email, at least insofar as answering my specific question - when I connect to gmail using SSL, I understand that my connected is secure ...
10
votes
4answers
12k views

How much will full-disk encryption slow down a netbook?

I've been comfortable using TrueCrypt volumes to protect various sets of files on my computers. But I've gathered there can be more convenience and security to be had be encrypting the full hard disk, ...
9
votes
1answer
531 views

“Panic Password” on Linux

I run Linux on my netbook with an encrypted home directory (decrypted when I log in). One idea I had (partly from Cory Doctorow's Little Brother) was to have a password that I could enter which would ...
11
votes
6answers
6k 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 ...
6
votes
5answers
673 views

What is a simple, secure way to encrypt files in Windows?

I want a colleague of mine to send me a sensitive Microsoft Word document via e-mail. Since Word's encryption is questionable, I would like to encrypt the file using a passphrase. Do you know of any ...
11
votes
3answers
7k views

How to do rsync-like encrypted backup?

I want to save a backup of my data on a remote server, but never want the backup server to see the data unencrypted. Editing a single file and backing up should not result in everything being ...