Question about encrypting - GoFuckYourself.com

Dirty F · 12-17-2012, 07:50 AM

If you encrypt something with Truecrypt it tells you to randomly move your mouse for as long as you want, the longer the better. So it's creating some random uhm..something...can someone explain this to me what this does exactly? I thought it was interesting.

Vapid - BANNED FOR LIFE · 12-17-2012, 07:53 AM

The algorithm is static so entropy is useful

http://en.wikipedia.org/wiki/Entropy_%28computing%29

pimpware · 12-17-2012, 07:56 AM

Entropy my friend, entropy...

Barry-xlovecam · 12-17-2012, 07:58 AM

Not really sure but it may be creating an encryption salt from the mouse positions?
http://en.wikipedia.org/wiki/Salt_%28cryptography%29

u-Bob · 12-17-2012, 08:05 AM

Quote:

Originally Posted by Monotony

The algorithm is static so entropy is useful

http://en.wikipedia.org/wiki/Entropy_%28computing%29

Exactly. Truecrypt doesn't use your password "as-is", but performs some cryptographic operations on it. The (pseudo)random number generator, that's part of this operation, starts with a seed. If the seed was a well-known or predictable value (like the time the truecrypt volume was created), an attacker would be able to generate data that is identical to the data your Truecrypt install generated when it created the container. By moving your mouse around, you are creating data that the attacker cannot predict or reproduce.

seeandsee · 12-17-2012, 08:10 AM

How much is that secure?

Vapid - BANNED FOR LIFE · 12-17-2012, 08:13 AM

Truecrypt with hidden containers, long keys, and multiple algorithms would give the NSA's thinking machines second thoughts.

u-Bob · 12-17-2012, 08:14 AM

Quote:

Originally Posted by seeandsee

How much is that secure?

worst case: it will at least slow an attacker down a bit.

Dirty F · 12-17-2012, 09:38 AM

Cool, thanks.

xanadu · 12-18-2012, 02:51 PM

very interesting

12-17-2012, 07:50 AM	#1
Dirty F Too lazy to set a custom title Industry Role: Join Date: Jul 2001 Posts: 59,204	Question about encrypting If you encrypt something with Truecrypt it tells you to randomly move your mouse for as long as you want, the longer the better. So it's creating some random uhm..something...can someone explain this to me what this does exactly? I thought it was interesting.

12-17-2012, 07:56 AM	#3
pimpware Confirmed User Join Date: Jan 2006 Location: Pt Posts: 1,673	Entropy my friend, entropy... __________________ icq: 284494832 realsexforyou.com

12-17-2012, 07:58 AM	#4
Barry-xlovecam It's 42 Industry Role: Join Date: Jun 2010 Location: Global Posts: 18,083	Not really sure but it may be creating an encryption salt from the mouse positions? http://en.wikipedia.org/wiki/Salt_%28cryptography%29

12-17-2012, 08:10 AM	#6
seeandsee Check SIG! Industry Role: Join Date: Mar 2006 Location: Europe (Skype: gojkoas) Posts: 50,945	How much is that secure? __________________ BUY MY SIG - 50$/Year Contact here

12-18-2012, 02:51 PM	#10
xanadu bot Industry Role: Join Date: Sep 2006 Location: Barcelona Posts: 997	very interesting __________________ GFY Admin [email protected] https://linktr.ee/xxx

12-17-2012, 07:53 AM	#2
Vapid - BANNED FOR LIFE Barterer Industry Role: Join Date: Aug 2004 Posts: 4,864	The algorithm is static so entropy is useful http://en.wikipedia.org/wiki/Entropy_%28computing%29

12-17-2012, 08:13 AM	#7
Vapid - BANNED FOR LIFE Barterer Industry Role: Join Date: Aug 2004 Posts: 4,864	Truecrypt with hidden containers, long keys, and multiple algorithms would give the NSA's thinking machines second thoughts.

12-17-2012, 09:38 AM	#9
Dirty F Too lazy to set a custom title Industry Role: Join Date: Jul 2001 Posts: 59,204	Cool, thanks.