Topic: HOWTO: create a 100% secure wallet - page 77. (Read 276221 times)
Thanks for the helpful tips
There is another way in which you can get robbed.
Since any valid Bitcoin transaction must get in the public block chain. Your public keys must be in the block chain. And some body might use the block chain to calculate what is the balance of a 'big' and 'static' Bitcoin address and use a cryptographic attack that address to find out the corresponding private key. It might take months, but you are not moving those Bitcoins so the attacker can take the time. Once he has the private key he makes a transaction to one of is addresses.
Since any valid Bitcoin transaction must get in the public block chain. Your public keys must be in the block chain. And some body might use the block chain to calculate what is the balance of a 'big' and 'static' Bitcoin address and use a cryptographic attack that address to find out the corresponding private key. It might take months, but you are not moving those Bitcoins so the attacker can take the time. Once he has the private key he makes a transaction to one of is addresses.
I'm using blockchain here, but I'm thinking about moving my wallet offline with Armory. Anyone here use Yubikey with blockchain? I've often wondered how secure it is even with Yubikey.
Great thread...Very helpful. I'm using the BlockChain.Info wallet and so far, Im impressed with the features and ease of use.
Grate TUT!
I've been looking for something like this before but coulnd't find anything.
Thanks!
I've been looking for something like this before but coulnd't find anything.
Thanks!
Thanks for this interesting writeup. The most salient point for me was the idea that my "wallet" could be stolen now, but it could be emptied years in the future when there is a trove of BTC in it... Eternal vigilance will pay!
i thank all for informations provide.
Thanks for the info
I use armory but I also have a long passphrase to unlock my wallet. This is stored in password safe, which I use to manage all of my passwords. Very useful. You can also encrypt your wallet using truecrypt but if you are using it regularly you may want to prioritise easy of access over security.
I used keepass to generate my 100 character long random encryption key for my bitcoin wallet. to unlock my keepass I need a 20 character long passphrase specific to me with upper and lower case and numbers. I find this to be a pretty safe method. I also use keepass for other important things email, bank account etc. The amount of power to brute force it is yet to be created and I feel safe keeping it on my cell phone my PC and flash drive just in case.
awesome!
thanks!
thanks!
Thanks a ton brah!
If you use linux anyway, placing the wallet in a small cryptsetup partition (say on a USB stick) would give encryption _and_ the ability to make it decryptable in case you die, as cryptsetup allows for multiple keys for the same partition - just make yourself a key and give another one to your SO, kids, or parents.
Thanks.
great guide thx!
Thank you for the infos. Whats about a 2nd security layer with a truecrypt container, only opened if needed?
I agree I would prefer encryption as well
awesome post
I also bet fot Armory, it's a beautiful piece of software and the offline wallet is a killer feature:) another nice thing is the paper backup of wallet, it works like a charm..
definitely helpful thread for newbies like me. 
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