Paper wallet with a strong password

[calkob]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

[1714962588]

1714962588

[1714962588]

1714962588

[1714962588]

1714962588

[1714962588]

1714962588

[achow101]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

Unless a weakness is found in AES, then no, Bitcoin cannot be stolen from an encrypted paper wallet with a strong password.

[cr1776]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

Just be sure the password is actually really strong.  Many passwords that people think are strong are not.

e.g.

http://lifehacker.com/5937303/your-clever-password-tricks-arent-protecting-you-from-todays-hackers

[BitcoinBarrel]

Check out http://bitaddress.org you can open it in an incognito window (no browse cache), unplug your internet, print it out, restart your computer and bada bing bada bam.

[BuySomeBitcoins]

Check out http://bitaddress.org you can open it in an incognito window (no browse cache), unplug your internet, print it out, restart your computer and bada bing bada bam.

If OP is paranoid, he can build his own bitaddress via https://github.com/pointbiz/bitaddress.org

Make sure your computer is not compromised [use linux]

[calkob]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

Just be sure the password is actually really strong.  Many passwords that people think are strong are not.

e.g.

http://lifehacker.com/5937303/your-clever-password-tricks-arent-protecting-you-from-todays-hackers

Would something like this be a strong password?

darrenisgoing2theshopuntilldinner

[shorena]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

Just be sure the password is actually really strong.  Many passwords that people think are strong are not.

e.g.

http://lifehacker.com/5937303/your-clever-password-tricks-arent-protecting-you-from-todays-hackers

Would something like this be a strong password?

darrenisgoing2theshopuntilldinner

No, generate random words. E.g. with a dice and the wordlist the EFF published a while back[1].

cosigner throng limpness penny treadmill reformer

Make up a small story to help you remember.

The cosigners in the throng went limp(ness) as only a penny was left after the threadmill of bitcoins reformation(-er).

Maybe think a little longer than 30 seconds on the story. Some of mine turned out so well I wish I could talk to someone about them.

[1] https://www.eff.org/de/deeplinks/2016/07/new-wordlists-random-passphrases

[calkob]

Maybe think a little longer than 30 seconds on the story. Some of mine turned out so well I wish I could talk to someone about them.

HAHA i like the sound of that, we stories securing your bitcoins. 

[ArcCsch]

Maybe think a little longer than 30 seconds on the story. Some of mine turned out so well I wish I could talk to someone about them.

You can talk about them all you like...after you clear the wallet.
I use something simpler, a modification to the bitcoinpaperwallet design to give space to write 2x18=36 dice rolls (I use a 6x6 table to turn dice rolls into characters) of entropy (more than 93 bits), for BIP38 encryption. This is adequate protection against someone hacking my wallet on the way to the printer. The projecting strip folds in half and is concealed deep within the folds.
I am not using this wallet and never will (image is reflected horizontally, dots on characters are to resolve ambiguities):

[LoyceV]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

This address has 1 Bitcoin in it: 1J5cjne6YVkgRTMTjqnaJVk1CWEEr3CcdX
It's free, for whoever cracks the 6 random characters in the BIP38 password. It hasn't been cracked since April 2015. You can find the Encrypted Private Key in I'm BIP38 curious, please help me out!
It costs a lot more than 1 Bitcoin to brute-force the password.

[dbstmddhks]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

This address has 1 Bitcoin in it: 1J5cjne6YVkgRTMTjqnaJVk1CWEEr3CcdX
It's free, for whoever cracks the 6 random characters in the BIP38 password. It hasn't been cracked since April 2015. You can find the Encrypted Private Key in I'm BIP38 curious, please help me out!
It costs a lot more than 1 Bitcoin to brute-force the password.

Wow, 6 random characters in the BIP38 password !

We need super super suuuppppeeeerrrrr computer for solving it. 


From wan.

[repdev]

The good and old paper wallet are one of the most secure.

[kolloh]

Paper wallets are usually a pretty good method of storing coins and they are what I've used. Although, I have been looking into getting a hardware wallet possibly in the future to replace the paper wallet method. They seem to have several advantages over paper wallets but I'd assume you'd also need a paper backup for them in case of hardware failure. Paper can only fail if it gets lost of damaged lol.

[Wipro]

Hi i was just wondering is it basically impossible to take bitcoin from an encrypted paper wallet that has a strong password?

i think it is strong password. every humanbeing have different set of thinking. so he is create strong password. paper wallet is sometimes mistakes is happen sometime we are solving accurately.

[piotr_n]

Would something like this be a strong password?

darrenisgoing2theshopuntilldinner

not after you've just posted it

but in general, I'd say it is strong.
you have 8 words - that's very complex to brute-force using a dictionary method, as the attacker would need to use a very big dictionary.

still, I'd advise to use at least twice that many words.
and throw some "mistakes" into a couple of the words.

the method I use: make a short original poem and remember it. poems are easy to remember.
never post it anywhere online!
you don't need to type the whole words - depending on the length of your poem, it might be just the first and last letter of each word, or something like that.
just make sure the password is long enough after all - 34 "random" low-case characters should do as they'd give about the same entropy (brute-force resistance) as the 160 bits of a bitcoin address.
also mind that some letters are more common in the language than others - try to make sure your 34-character password does not follow these statistics.

[calkob]

Paper wallets are usually a pretty good method of storing coins and they are what I've used. Although, I have been looking into getting a hardware wallet possibly in the future to replace the paper wallet method. They seem to have several advantages over paper wallets but I'd assume you'd also need a paper backup for them in case of hardware failure. Paper can only fail if it gets lost of damaged lol.

Yeah i had considered a hardware wallet myself but then just thought i would rather spend that money getting more bitcoin   i am mostly hodling my bitcoin now anyway so dont really require to be moving them about alot.

[Ejinx]

If its offline it will be secure

[ArcCsch]

If its offline it will be secure

You also have to generate it in a secure fashion, if you use shady software on a computer clogged with viruses, you may have your coins stolen.
Using a Linux cold boot USB is not perfect, but it is the best most people can practicably (without buying a hardware wallet or using multisignature addresses) achieve.
Another security hole is the route to the printer, which is why I use wallet encryption in the first place.

[szafa]

You can also use random keys from keybord to have strong password or random words this is more efective.