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Author Topic: HOWTO: create a 100% secure wallet  (Read 274036 times)
btcking
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July 19, 2011, 11:43:26 PM
 #361

Thanks. I always encrypt my wallet and also copy it to several locations that are not on my hard drive I pulled it from
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Bubi
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July 20, 2011, 09:00:07 AM
 #362

Thanks for the advice, you can never be too safe when dealing with money Smiley.
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July 20, 2011, 01:38:21 PM
 #363

Paper money --> more secure than bitcoin
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July 20, 2011, 02:42:00 PM
 #364

Paper money --> more secure than bitcoin

Don't you have mattresses to stuff? I just backed my wallet up to dropbox. I can be pretty dumb.
Coin to Bux
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July 20, 2011, 03:32:39 PM
 #365

nice guiod
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July 21, 2011, 12:54:23 AM
 #366

Good guide, something everyone should give a read before they realize how easy wallets can be compromised.
netrin
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July 21, 2011, 02:02:57 AM
 #367

why doesn't the client have built in encryption for wallets? Is that not something the community thinks is important enough to include?

The client is still alpha software. It's coming.

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July 21, 2011, 02:04:24 AM
 #368

Is there a way i can save the current block list alongside the wallet file, so that i don't have to wait increasingly longer periods of time waiting for it to download entirely each and every time i decide to use my safe wallet?

Edit- Ok, that was already answered, appearently, so i'll rephrase: what filename does the block list has?

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ewarrior
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July 21, 2011, 03:44:33 AM
 #369

thanks great guide
netrin
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July 21, 2011, 06:12:01 PM
 #370

Is there a way i can save the current block list alongside the wallet file, so that i don't have to wait increasingly longer periods of time waiting for it to download entirely each and every time i decide to use my safe wallet?

Edit- Ok, that was already answered, appearently, so i'll rephrase: what filename does the block list has?

Generally the *dat files exclusive wallet.dat. But with every client release (and patches) there seems to be consolidation along with new scattered files. If you switch wallets, --rescan, and send transactions, the following files/directories will likely change:

blk000*.dat
blkindex.dat
database/
__db.00*
debug.log

addr.dat
wallet.dat

There is not a clean separation between private, public, and temp/log data. Even wallet.dat contains many references to public data, such as the earliest relevant block. Though little if any public data makes identifying references to the wallet.dat.

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kermitscott
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July 21, 2011, 07:02:34 PM
 #371

I'm beginning to understand!
epiks
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July 21, 2011, 07:40:05 PM
 #372

cant ppl still steal your wallet by emailing it to themselves then just loading up your wallet with their bitcoin program? you wont even have to open it or attempt to read it
Neokolzia
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July 22, 2011, 07:08:25 AM
 #373

Through building my rigs I've made like 5 other orders after the initial order for the rig, Dummy plugs, KVM Switches... and not to mention now a decent 16GB USB drive that is going to be exactly this. Love the guide thank u.
Nobu
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July 22, 2011, 02:59:17 PM
 #374

cant ppl still steal your wallet by emailing it to themselves then just loading up your wallet with their bitcoin program? you wont even have to open it or attempt to read it

Only if they know where it is and have access to it--access being:
1.) Remote, through insecure SSH configuration, lax network share permissions, etc..
2.) Local, via an insecure account (bad password/lax permissions)
3.) Local, by taking the physical hard drive from the machine.

(1) can be avoided by keeping the machine you store your key on off of your local network and the internet, or by keeping your wallet on a removable disk/drive (and never allowing the file to touch other drives). (2) can be avoided by keeping your local user accounts secure, or by keeping the wallet on a removable(...). (3) can be avoided by keeping the file on a secure media in a secure place as with (1) and (2). (1), (2), and (3) can all be mitigated by encryption, but if a thief has your wallet (even if it's encrypted) then he only needs to crack the encryption (which will take a while) and he has your coin.

To prevent a thief who has somehow procured your ("secure") bank wallet from getting your coin, you may choose to make a new secure wallet every now and then (and transfer the funds from the old wallet to the new one). With encryption, that should be enough to prevent a thief from getting anything before you can say "Peter piper picked a peck of pickled peppers". It's up to you how long between new wallets you want to go, but I don't think you need to do it too often.

The most important point to remember is that if your (encrypted or not) wallet is ever on a non-encrypted storage medium, then it's data will remain there for anyone to scrape if they have physical access to the drive (and sometimes even without), until that data is replaced (which may take a while, unless you shred it, but it still may be there depending on the filesystem you're using). So if you can keep the wallet encrypted throughout it's entire lifetime, that would be best (particularly if it's also on a fully encrypted volume), and if you can keep it from touching your hard-drive until it can be encrypted that's good too.

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July 22, 2011, 08:07:26 PM
 #375

1. Boot to live CD
2. Use bitcoin to generate your wallet.dat and however many keys you want.
3. Extract the public AND private keys (well, when they finally merge the PULL request on github)
    3a. on a separate sd card, store all your public keys so you can get to them later
4. PRINT the keys out on your printer, and leave some extra space and use a pen to copy them down again (printer ink can fade over years)
5. Put the keys in a security envelope, and then in a tamper-evident manila envelope.
6. Go get a 2"x5" safety deposit box at your local bank for $10/yr and put the envelope in there.
    6a. (optional) include a small sd card with the wallet.dat and plaintext keys so it's easier than importing keys manually
7. Don't forget to pay the annual lease for the SD box (perhaps pay several years in advance?)
8. Huh
9. PROFIT

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piramida
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July 22, 2011, 09:56:26 PM
 #376

Dept. of Defence releases a tiny secure linux distro, USB bootable, what else you need for the secure wallet Smiley http://www.geek.com/articles/chips/u-s-dept-of-defense-offers-up-tiny-secure-linux-distribution-20110722/

i am satoshi
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July 23, 2011, 12:00:59 AM
 #377

Thanks.  I think I like the vault/safety-deposit-box approach with redundant copies.

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cdnadvis
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July 23, 2011, 02:20:21 AM
 #378

Thanks this is a big help
CurrentlyBaked
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July 23, 2011, 09:21:46 AM
 #379

Thanks for the information!

I guess I need to go ahead and get a better OS like you said since I am using garbage...bleh
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July 23, 2011, 01:45:30 PM
 #380

As the old adage goes: "Hey there, long time listener, first time caller!"

Here's my biggest question at the moment and one I have yet to find an answer for:

I have a Mac, I am fairly new to Mac, I've been a PC guy for over 20 years...where in the hell are my files located for BitCoin that I can backup?

Yes, I have read as many forum posts as I could and yes I read the "official" BitCoin wiki. It says "By default BitCoin will put its data here: ~/Library/Application Support/Bitcoin/" but for some reason my install doesn't fall under the "by default" category, not sure why.

I've done a locate search but since this is a fairly new system the locate db didn't yet exist, I am waiting while that does it's index right now.

1) Why would my "by default" be different that everyone else's? I didn't explicitly install it in a different spot but then again I'm still new to Mac so maybe I installed it wrong or something.

2) Ok, guess I didn't have a two....

Thanks guys and glad to be on the forums!

DrDiesel
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