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Author Topic: How do you protect bitcoin from an Electro-Magnetic Pulse?  (Read 7774 times)
LehmanSister
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July 07, 2011, 03:11:47 AM
 #61


I think that's a misstatement; I'm fairly certain that AES works well as a composite function (with non-related keys), altho' I would personally use a second cipher for the second round. Even in the case of the 3DES MITM style attack, 3DES remained more resilient then just DES, just not 3x as effective.

I missed the part where you explained why it's a misstatement. Smiley.

It's note barely useful, it's useful, just closer to 80% useful. Depends.

For znort987, I recommend a chain of multiple ciphers for composite encryption, and unrelated random keys.
If the user can secure the key of such system, he could as well secure the bitcoin key directly.

Depends on his setup. But I like the comic!

ISO: small island nations with large native populations excited to pay tribute to flying gods, will trade BTC.
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kloinko1n
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July 07, 2011, 06:57:10 AM
 #62

If your neighbourhood gets hit by an EMP, where do you think you will get the electricity to run your computer with on which your bitcoins reside(d)?
fergalish
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July 07, 2011, 07:18:09 AM
 #63

If your neighbourhood gets hit by an EMP, where do you think you will get the electricity to run your computer with on which your bitcoins reside(d)?
Agreed.  If a nuclear EMP happens your way you're gonna have *plenty* of other things to worry about, like, oooh, WHY IS MY SKIN FALLING OFF?Huh??
Quantus
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July 07, 2011, 07:24:20 AM
 #64

Google Faraday cage,
you can buy little bags or large bags that can protect your Thumbdrives and HHD, SSD or what ever from the end of the world.

(I am a 1MB block supporter who thinks all users should be using Full-Node clients)
Avoid the XT shills, they only want to destroy bitcoin, their hubris and greed will destroy us.
Know your adversary https://www.youtube.com/watch?v=BKorP55Aqvg
TiagoTiago
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July 07, 2011, 11:03:45 PM
 #65

Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...

(I dont always get new reply notifications, pls send a pm when you think it has happened)

Wanna gimme some BTC for any or no reason? 1FmvtS66LFh6ycrXDwKRQTexGJw4UWiqDX Smiley

The more you believe in Bitcoin, and the more you show you do to other people, the faster the real value will soar!

Do you like mmmBananas?!
Swishercutter
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July 07, 2011, 11:12:20 PM
 #66

Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...

Pretty sure that would work as one...as long as its sealed...current only travels on the skin not to the inside.

http://ocw.mit.edu/courses/physics/8-02-electricity-and-magnetism-spring-2002/video-lectures/lecture-5-electrostatic-shielding-faraday-cage/

You can watch the whole video for an explanation or just watch the demos at approx 30min and 50min.
herbertfilby
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July 08, 2011, 12:07:22 AM
 #67

We need bitcoins backed by bottle caps:

KMBTC11
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July 08, 2011, 02:27:55 AM
 #68


18ag54cB87XxmYwcUFGw55Ft5kzx63MpV2
Tx2000
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July 08, 2011, 02:40:32 AM
 #69




I know where that has been  Wink
compro01
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July 08, 2011, 04:14:49 AM
 #70

Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...

presumably, but only if the metal is grounded.
Swishercutter
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July 08, 2011, 05:42:16 AM
 #71

Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...

presumably, but only if the metal is grounded.

Not true...the item just has to be wrapped in the conductor.  Charge moves around the skin...never penetrates the conductor.  My earlier post has a link to an MIT video lecture explaining it.
Tronlet
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July 08, 2011, 05:48:53 AM
 #72

If your neighbourhood gets hit by an EMP, where do you think you will get the electricity to run your computer with on which your bitcoins reside(d)?
What? EMPs aren't magic devices that permanently disable electricity by hacking reality...

kloinko1n
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July 08, 2011, 06:08:12 AM
 #73

Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...
They do, in a way. Depending on the material used (specific conductivity, magnetic permeability and thickness) and the severeness of the EMP they  protect to a certain degree.
kloinko1n
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July 08, 2011, 06:09:20 AM
 #74

Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...

presumably, but only if the metal is grounded.
Grounding is of no concern.
MikesMechanix
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July 08, 2011, 06:53:47 AM
 #75

FWIW, modern data centers have EMP protected walls.

The datacenter where my servers are also has a flywheel UPS for short power outages, and a diesel generator that can supply power up to 4 days for longer ones.

Please send your extra Bitcoins to 17miTorGDBUh3yNTYJtodJPw9wzrcNcf6y. Thank you!

Sign up on TradeHill Instant Bitcoin Exchange using this link to get a lifetime 10 % discount on trades!
TiagoTiago
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July 08, 2011, 07:34:57 PM
 #76

They don't disable electricity but they can fry the stuff that brings electricity into your home

(I dont always get new reply notifications, pls send a pm when you think it has happened)

Wanna gimme some BTC for any or no reason? 1FmvtS66LFh6ycrXDwKRQTexGJw4UWiqDX Smiley

The more you believe in Bitcoin, and the more you show you do to other people, the faster the real value will soar!

Do you like mmmBananas?!
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