Topic: How do you protect bitcoin from an Electro-Magnetic Pulse? (Read 8465 times)
They don't disable electricity but they can fry the stuff that brings electricity into your home
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.
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.
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.
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. 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... 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.
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.
We need bitcoins backed by bottle caps:
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.
Do common metal safes work like faraday cages? If yes, that's a nice 2 for one deal...
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.
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.
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?
??
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)?
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.
.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!
[...]
Use the could Luke (after two rounds of AES-256, of course)
Double encryption is barely useful. Read about the meet in the middle attack.Use the could Luke (after two rounds of AES-256, of course)
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.
.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.
Your suggestion makes me recall the following XKCD comic, enjoy:
.Revised in 2011-07-05 17:57: Formatting.
I can confirm that someone claimed the bitcoin... and yes.. I made a mistake on the address. when I reloaded the wallet.dat.. it actually generated a new keypair.. when I looked at my copy of wallet.dat I had running on a PC it had 2 addresses now. The one I uploaded only had the single address which BTCurious posted.
In any case.. the correct address was 1FuP3q8EUp64ufmJouUu8g8wc6coxXLZUM
If anyone would like to print the image to paper and try scanning it in for themselves.. the password was "bitcoin"...
It was printed out with 1:2 redundancy.. and a larger DPI than normal.. which should prove to make it pretty resilient.
You could try damaging the paper in various ways.. folding it, puncturing it, scratching off dots, etc. See how much abuse it can take before it is no longer recoverable when scanning it in.
RchGrav
In any case.. the correct address was 1FuP3q8EUp64ufmJouUu8g8wc6coxXLZUM
If anyone would like to print the image to paper and try scanning it in for themselves.. the password was "bitcoin"...
It was printed out with 1:2 redundancy.. and a larger DPI than normal.. which should prove to make it pretty resilient.
You could try damaging the paper in various ways.. folding it, puncturing it, scratching off dots, etc. See how much abuse it can take before it is no longer recoverable when scanning it in.
RchGrav
That wasn't too difficult 
After you mentioned that it was a Paperbak thing, anyway
Oh btw, I'm going to assume this was an honest mistake, but the address you mentioned was actually not the address in the wallet. The address in the wallet is 1FuP3q8EUp64ufmJouUu8g8wc6coxXLZUM, but the coin has already been claimed.
Feel free to donate to that address though, I don't mind ^^ (Or yeah, support oxygen or marquee tags in my sig)
After you mentioned that it was a Paperbak thing, anyway Oh btw, I'm going to assume this was an honest mistake, but the address you mentioned was actually not the address in the wallet. The address in the wallet is 1FuP3q8EUp64ufmJouUu8g8wc6coxXLZUM, but the coin has already been claimed.
Feel free to donate to that address though, I don't mind ^^ (Or yeah, support oxygen or marquee tags in my sig
) My bitcoins are safe because they're on a Paper Bitcoin Wallet. (see sigline)
With that concept, people will have to trust you that you don't run with their money when they deposit a significant account on it. Afterall, you've got the "key to their safe"; the private key…(Edit: Oh right, 2 more pages inbetween. Autopager fail…)
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