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External HDD encryption? - Page 3

post #21 of 23
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Quote:
Originally Posted by rocker22dallas View Post

yes. if you encrypt with truecrypt, you will need to have truecrypt on every computer you want to use that drive on. then in order to open the volume, you need to open truecrypt and mount it in windows and asign a drive letter (all done within truecrypt)

And if i use Blitlocker To Go?
post #22 of 23
i used it in my cisco class for all my labs. you are correct, the truecrypt file is just a single file on the drive, but to mount it, you click an unused drive letter, click mount, then choose the file you want to mount.

HOWEVER. there are several different ways to use truecrypt. i was using it for a single file because it was on a shared hard drive. you can encrypt an entire drive or some different uses. download the program and try the different options on a flash drive or something to test it. I have only used it for that one use, but got so annoyed by it that i just stopped using it and began using dropbox because i could just drag files to it, and it would be uploaded and immediately accessable on my laptop
post #23 of 23
Quote:
Originally Posted by hammong View Post

It's been a long time since I fiddled with TrueCrypt, but as I understand it - the volume itself is unencrypted. You have the TrueCrypt executable and a single file that represents the encrypted volume on the USB key, HDD, etc. You plug in the device, then run the executable, and then mount the encrypted file (by supplying the password when prompted). There's no need to "install" the Truecrypt software on the host computer, I think it just runs by clicking on it when you need it.

Someone else with more recent TrueCrypt experience might chime in.

Greg

The volume is unencrypted once you mounted it. The most important part of a TC volume is the volume header. Without it you can't mount the volume , that's why it comes with an option to backup the volume header.

Every version of TC past 6.0 has built in backup volume header even if you don't manually back it up , maybe people were corrupting their volumes or something.

Truecrypt just unlocks the "volume" / "container" which may just be a file akin to an iso / daa but with any extension you want

Truecrypt is rebranded on Lacie Private-Public

You can put Truecrypt anywhere (even on the same USB drive on a un-encrypted partition) and run it, it doesn't need to be installed.

Truecrypt isn't 100% safe: Cold boot attacks , for starters. Don't use hibernate (see http://arstechnica.com/security/2012/12/cheap-app-cracks-pgp/).

There's also the issue of keyloggers/rootkits that read keystrokes. With a hardware based solution (preferably dual factor such as biometric on top of software) there's another set of issues but keyloggers are less of an issue.
Edited by AlphaC - 8/21/13 at 1:57pm
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