Brain wallet using Merkle root.
Topic: Your Bitcoin storage solution? "Share It!" (Read 3666 times)
Well... nothing like a good old paper wallet:
http://cryptoart.com/wp-content/uploads/2014/03/stackFan-450x450.jpg
cryptoart.com
Review from Bitcoin Magazine
http://cryptoart.com/wp-content/uploads/2014/03/stackFan-450x450.jpg
cryptoart.com
Review from Bitcoin Magazine
I love the art work. Does anyone know how the keys are able to be changed? Another question about these beautiful paper wallets suitable for framing is: How can we know that only the specified number of prints are actually all that were produced. In the 8.5x11 format only 200 of each print were run. Seems like a crypto method could be applied to validate the legitimacy of the actual art piece, while allowing me to stash BTC in the keys. I am eager to play with this, and just like the art so wont lose too much sleep over the investment. I love Alexander Federov's work.
“Never put all eggs in one basket”
Quote from: Homer Simpson
What would you have me do? One basket for each egg?
I believe in old adage: “Never put all eggs in one basket”
Put all your eggs in one basket and then WATCH THAT FUCKING BASKET!
I believe in old adage: “Never put all eggs in one basket”
So I put my Bitcoins in Electrum, Armory, BlockChain.info, CoinKite, BitGo and my Android phone.
Plus using Google Inactive Account Manager as a deadman switch with instruction for my family to sell this Bitcoin just in case something terrible happened to me.
So I put my Bitcoins in Electrum, Armory, BlockChain.info, CoinKite, BitGo and my Android phone.
Plus using Google Inactive Account Manager as a deadman switch with instruction for my family to sell this Bitcoin just in case something terrible happened to me.
legendary
Activity: 1302
Merit: 1008
Core dev leaves me neg feedback #abuse #political
?? Why doing this. If you machine is offline all the time besides the moment you actually send BTC to the exchange, how is your wallet going to be compromised?
malware could still conceivably steal your coins if it sent them before you could send them
I read somewhere someone suggesting leaving a small amt of BTC in a wallet in the outer encrypted layer as an intrusion detection system
and leave the real loot one encrypted level deeper
seems like a smart plan
then if there is action with the outer wallet, you know that you are partially compromised before the full compromise is completed
and leave the real loot one encrypted level deeper
seems like a smart plan
then if there is action with the outer wallet, you know that you are partially compromised before the full compromise is completed
Interesting solutions guys!
Here's another question, how much do you online (Blockchain.info Bitcoin-QT Electrum etc) for spending purposes.
I have some change that I keep online (like $150) just in case I see something that interests me (maybe a overstock purchase etc)
Here's another question, how much do you online (Blockchain.info Bitcoin-QT Electrum etc) for spending purposes.
I have some change that I keep online (like $150) just in case I see something that interests me (maybe a overstock purchase etc)
I tattooed my address on my newborn.
Majority of my BTC is on a USB stick using Electrum's Portable wallet.
The contents on the USB stick is in a TrueCrypt container using a file name that appears to be a typical file. The TrueCrypt container is copied for backup.
I also keep some online for spending purposes via Blockchain.info with 2-Factor Authentication enabled. Online, usually less than $200 USD at any given time.
The contents on the USB stick is in a TrueCrypt container using a file name that appears to be a typical file. The TrueCrypt container is copied for backup.
I also keep some online for spending purposes via Blockchain.info with 2-Factor Authentication enabled. Online, usually less than $200 USD at any given time.
?? Why doing this. If you machine is offline all the time besides the moment you actually send BTC to the exchange, how is your wallet going to be compromised?
Many posters use an offline computer for cold storage.
I would like to offer a tip for acquiring a dedicated offline machine with minimum cost and hassle.
1. Go on craigslist and look for a cheap used laptop. If you're patient, you may be able to find one in the $50-$100 range. Make sure it has a USB port so you can copy files and programs with a thumb drive.
2. Permanently disable both the Ethernet cable port as well as the wifi. Simply turning this off in windows may not work and may not be safe. The best way I found to permanently revoke internet access is by deleting the associated driver files from the machine. To determine the location of the files, first determine what version of windows it has, then perform a google search. For example "where are driver files located on windows 7". Make sure you're deleting the right driver files though, because you could brick your computer if you delete the wrong ones. Only delete the drivers for the internet connection! You can save a backup copy of any files you delete, just in case.
3. Enjoy your offline computer!
I would like to offer a tip for acquiring a dedicated offline machine with minimum cost and hassle.
1. Go on craigslist and look for a cheap used laptop. If you're patient, you may be able to find one in the $50-$100 range. Make sure it has a USB port so you can copy files and programs with a thumb drive.
2. Permanently disable both the Ethernet cable port as well as the wifi. Simply turning this off in windows may not work and may not be safe. The best way I found to permanently revoke internet access is by deleting the associated driver files from the machine. To determine the location of the files, first determine what version of windows it has, then perform a google search. For example "where are driver files located on windows 7". Make sure you're deleting the right driver files though, because you could brick your computer if you delete the wrong ones. Only delete the drivers for the internet connection! You can save a backup copy of any files you delete, just in case.
3. Enjoy your offline computer!
You can always just remove the wireless card.
legendary
Activity: 1302
Merit: 1008
Core dev leaves me neg feedback #abuse #political
Many posters use an offline computer for cold storage.
I would like to offer a tip for acquiring a dedicated offline machine with minimum cost and hassle.
1. Go on craigslist and look for a cheap used laptop. If you're patient, you may be able to find one in the $50-$100 range. Make sure it has a USB port so you can copy files and programs with a thumb drive.
2. Permanently disable both the Ethernet cable port as well as the wifi. Simply turning this off in windows may not work and may not be safe. The best way I found to permanently revoke internet access is by deleting the associated driver files from the machine. To determine the location of the files, first determine what version of windows it has, then perform a google search. For example "where are driver files located on windows 7". Make sure you're deleting the right driver files though, because you could brick your computer if you delete the wrong ones. Only delete the drivers for the internet connection! You can save a backup copy of any files you delete, just in case.
3. Enjoy your offline computer!
I would like to offer a tip for acquiring a dedicated offline machine with minimum cost and hassle.
1. Go on craigslist and look for a cheap used laptop. If you're patient, you may be able to find one in the $50-$100 range. Make sure it has a USB port so you can copy files and programs with a thumb drive.
2. Permanently disable both the Ethernet cable port as well as the wifi. Simply turning this off in windows may not work and may not be safe. The best way I found to permanently revoke internet access is by deleting the associated driver files from the machine. To determine the location of the files, first determine what version of windows it has, then perform a google search. For example "where are driver files located on windows 7". Make sure you're deleting the right driver files though, because you could brick your computer if you delete the wrong ones. Only delete the drivers for the internet connection! You can save a backup copy of any files you delete, just in case.
3. Enjoy your offline computer!
I committed my cold storage private key to memory and destroyed all other copies.
If I understand correctly you memorized a string of fifty characters in base58, which is for practical mnemonic purposes completely random, and you don't have a backup. That's something like 290 bits of information. How often do you rehearse it, and when you rehearse it do you regenerate the address anew, check it to verify that you didn't have a memory fault?Yeah. Basically 52 random base58 characters. No backup.
I rehearsed it every day for the first 2 weeks but reduced the frequency and these days am comfortable rehearsing about once per month. I checked again following your post and managed with no hesitation (not as fluently as when I enter my e-mail password, but fairly solid).
I check it with a dedicated computer. I just check that the private key is valid (the checksum is ok) and that it generates the correct address.
I've had this address for nearly a year now. I transferred the balance from my last cold storage address, for which I also memorised the private key. I just tried to recall this old key and was surprised to find that I succeeded, although I'll admit I blanked a couple of times and it took me about 2 minutes to recall in full.
I couldn't recommend this method to anyone, but it serves my purposes well.
Impressive.
With my minimalistic Offbit private keys stay ultra cold: https://bitcointalksearch.org/topic/annrfc-offbit-off-grid-bitcoin-txs-v0001-488915 Never any contact with online systems.
I have:
*A few Casascius coins
*Bitcoin QT with low balance for receiving mining rewards
*Some change in my phone to pay things outside the house
*A very secret storage for investments
*A few Casascius coins
*Bitcoin QT with low balance for receiving mining rewards
*Some change in my phone to pay things outside the house
*A very secret storage for investments
legendary
Activity: 1302
Merit: 1008
Core dev leaves me neg feedback #abuse #political
I've always found that the easiest way is to use a dedicated machine (such as an old laptop) for your Bitcoin storage wallet.
This laptop should definitely be running Linux and be kept offline until you need to send any of your Bitcoin funds.
This laptop should definitely be running Linux and be kept offline until you need to send any of your Bitcoin funds.
Isn't it safer still to NEVER put that machine online ever again? (Instead sign the transaction offline and import it)
I use blockchain.info, i only access from secure mobile browser
Web wallets are so insecure, never use them as main client. Would you keep your lifesavings in your wallet that you could easily be pick pocketed from.
There is a risk while your money are kept on a server in some company.
Hundreds ways to lost it.
But so far blockchain.info is "safe" to use if you remember about all security steps like good password etc.
Anyway.
Brainwallet safest
but not perfect Please don't spread misinformation and confuse new users.
Do you mean about what I wrote about brain wallets or blockchain.info?
Ok - to be 100% precise
"blockchain.info is "probably safe" " IF you will not get hacked or they do not get hacked.
"Brainwallet safest
but not perfect " - of you have a brain of a genius or at least VERY good memory....I am sorry for spreading misinformation and confuse new users. I hope now it sounds better.
I use blockchain.info, i only access from secure mobile browser
Web wallets are so insecure, never use them as main client. Would you keep your lifesavings in your wallet that you could easily be pick pocketed from.
There is a risk while your money are kept on a server in some company.
Hundreds ways to lost it.
But so far blockchain.info is "safe" to use if you remember about all security steps like good password etc.
Anyway.
Brainwallet safest
but not perfect Please don't spread misinformation and confuse new users.
I'll take my chances.
Did try the whole 'some-file some-where' backed-up, etc etc .. but it just stressed me out, far more.
I believe it is stressful while you have a lot of BTC
I am in a "happy" position that I earn and spend BTC I do not hodl.
So I do not feel the pressure
But I am 100% sure when I will get few BTC and I will hodl them - I will hammer them on a piece of iron.
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