marhjan
Full Member
 Offline
Activity: 215
Merit: 105
Poorer than I ought to be
|
 |
April 02, 2013, 03:57:58 PM |
|
I wonder how many BTCs should one have before becoming this paranoid  A lot less than it used to be... 500btc is no longer a trivial amount of money. Ah some of the btc I wasted in various places lol |
Donations happily accepted @ 15qxNsc7pBiz5kXpAJykw4etzMbZitm2mk
|
|
|
|
|
|
|
|
|
|
Even in the event that an attacker gains more than 50% of the network's
computational power, only transactions sent by the attacker could be
reversed or double-spent. The network would not be destroyed.
|
|
|
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
|
|
|
|
|
OlgaA524
Newbie
Offline
Activity: 54
Merit: 0
|
|
April 02, 2013, 04:14:49 PM |
|
Encode private key by a well known book that you can find in any library and most homes. 3 fields of say 6 characters sequence: 000312000035000003 for one character where 000312 = page number, 000035 = line number, 000003 = column number Then you can become more paranoid and alternate page, line, column for first char then line, column, page for second. Then you can do it in hex, then backwards etc Imagination is a limit. |
|
|
|
|
|
Snipes777 (OP)
|
|
April 02, 2013, 04:22:26 PM |
|
I wonder how many BTCs should one have before becoming this paranoid Depends on current/future value of those coins. At 100/ BTC then maybe going north of 50-100 would require some paranoia. At some arbitrary future value of 100,000/ BTC then .1 or .05 would require the same security measures. Always hard to determine, but for me it is more a fun project to create a crazy intricate code/masterpiece to hide my coins rather than a practical cost/ risk analysis. I want to have fun and make something unusual. |
Voluntaryism- The belief that ALL human interactions should be free of force, fraud and coercion. Taxation is Theft; War is Murder; Incarceration is Kidnapping; Spanking is Assault; Federal Reserve Notes are Counterfeiting http://en.wikipedia.org/wiki/Voluntaryism |
|
|
|
pa
|
|
April 03, 2013, 02:10:26 AM |
|
I'd like to use a 3D printer to print QR codes for private/public keys in the center of some opaque solid plastic object that would have to be broken/cut in half to reveal the codes.
More durable than a paper wallet and could be hidden in all manner of innocent-looking 3D structures. . . .
|
|
|
|
|
Ente
Legendary
Offline
Activity: 2126
Merit: 1001
|
|
April 03, 2013, 06:52:59 AM |
|
I'd like to use a 3D printer to print QR codes for private/public keys in the center of some opaque solid plastic object that would have to be broken/cut in half to reveal the codes.
More durable than a paper wallet and could be hidden in all manner of innocent-looking 3D structures. . . .
I like that idea! How about some fugly chinese "may wealth be upon your path" statue? With the current exchangerate-action there is no excuse to not have a 3D printer by now ;-) Ente |
|
|
|
|
b¡tco¡n
Member
Offline
Activity: 84
Merit: 10
Correct Horse Battery Staple
|
|
April 03, 2013, 07:05:41 AM |
|
How about your fingerprint as the basis for the hash? (you'd need something to convert a fingerprint to a 'string')
|
|
|
|
marcus_of_augustus
Legendary
Offline
Activity: 3920
Merit: 2348
Eadem mutata resurgo
|
|
April 03, 2013, 07:09:38 AM |
|
How about your fingerprint as the basis for the hash? (you'd need something to convert a fingerprint to a 'string')
Like from a fingerprint scanner input? |
|
|
|
Dabs
Legendary
Offline
Activity: 3416
Merit: 1912
The Concierge of Crypto
|
|
April 03, 2013, 07:25:06 AM |
|
I didn't get to post this earlier, but another creative idea (which is extreme) is to.
1. print and laminate or engrave on metal or hard plastic.
2. pour melted wax around.
3. put in bigger wooden or plastic box.
4. pour cement around.
You get a block of cement when it's dry. You will have to break open the cement but since there is a box, the contents of the box is protected. The wax is also additional protection for the object which actually holds the private key for your bitcoins.
The problem with fingerprints is that it has to consistently give the same output. Fingerprint scanners work by comparing your scan of right now, with something it stored previously, and checking to see how much of before and now is the same. It can't give the exact same output all the time, because of finger orientation, so I don't know how a hash of your fingerprint would be secure.
Also if you wound your finger with a blade cut or something, or it grows a pimple, then the scan would fail.
|
|
|
|
eldentyrell
Donator
Legendary
Offline
Activity: 980
Merit: 1004
felonious vagrancy, personified
|
|
April 03, 2013, 08:24:09 AM
Last edit: April 03, 2013, 08:35:10 AM by eldentyrell |
|
i actually have the equipment to do small scale metal etching. i'd offer the making of cold storage wallets, but to etch the private keys i'd have to see them. never really figured out a way around that i was comfortable with. any ideas?
I'm planning to order 580 laser-engraved "scrabble tiles" -- 10 each of the 58 characters allowed in a bitcoin private key. The idea is to use some inexpensive non-oxidizing metal. I'll epoxy the sequence of characters that forms my private key onto a backplate and then melt/destroy enough of the leftovers so that I have an equal number of each of the spare letters remaining. And then destroy the laptop that produced the key, of course. The result is an engraved private key that will probably outlive my descendants, produced without having to trust the guy operating the laser engraver (or having to buy+operate one myself). |
The printing press heralded the end of the Dark Ages and made the Enlightenment possible, but it took another three centuries before any country managed to put freedom of the press beyond the reach of legislators. So it may take a while before cryptocurrencies are free of the AML-NSA-KYC surveillance plague.
|
|
|
marcus_of_augustus
Legendary
Offline
Activity: 3920
Merit: 2348
Eadem mutata resurgo
|
|
April 03, 2013, 08:31:34 AM |
|
I didn't get to post this earlier, but another creative idea (which is extreme) is to.
1. print and laminate or engrave on metal or hard plastic.
2. pour melted wax around.
3. put in bigger wooden or plastic box.
4. pour cement around.
You get a block of cement when it's dry. You will have to break open the cement but since there is a box, the contents of the box is protected. The wax is also additional protection for the object which actually holds the private key for your bitcoins.
The problem with fingerprints is that it has to consistently give the same output. Fingerprint scanners work by comparing your scan of right now, with something it stored previously, and checking to see how much of before and now is the same. It can't give the exact same output all the time, because of finger orientation, so I don't know how a hash of your fingerprint would be secure.
Also if you wound your finger with a blade cut or something, or it grows a pimple, then the scan would fail.
Yes, this is all true. What could be used though is the facial recognition software that works on 8-26 (depending on quality) unique numerical coordinates for features on the human face. That could be the basis for a brain wallet or hashed, etc ... |
|
|
|
|
Atruk
|
|
April 03, 2013, 08:42:50 AM |
|
I didn't get to post this earlier, but another creative idea (which is extreme) is to.
1. print and laminate or engrave on metal or hard plastic.
2. pour melted wax around.
3. put in bigger wooden or plastic box.
4. pour cement around.
You get a block of cement when it's dry. You will have to break open the cement but since there is a box, the contents of the box is protected. The wax is also additional protection for the object which actually holds the private key for your bitcoins.
The problem with fingerprints is that it has to consistently give the same output. Fingerprint scanners work by comparing your scan of right now, with something it stored previously, and checking to see how much of before and now is the same. It can't give the exact same output all the time, because of finger orientation, so I don't know how a hash of your fingerprint would be secure.
Also if you wound your finger with a blade cut or something, or it grows a pimple, then the scan would fail.
Concrete might actually not be the best material for this because it can be rather corrosive, especially while it is curing... |
|
|
|
Rassah
Legendary
Offline
Activity: 1680
Merit: 1035
|
|
April 03, 2013, 04:56:08 PM |
|
My savings account private key is generated using the VIN number of my new car. Shhh! Don't tell anyone  |
|
|
|
|
|
|
|
