encrypted paper wallets? | Bitcointalksearch.org

etotheipi

legendary

Activity: 1428

Merit: 1093

Core Armory Developer

Quote from: ?? on ??

This is not what i was aski g about but cool to know.

I more or less made my own in the past by hand.

Thanks

I know that you were asking about encrypted paper backups, and this is my standard response to that topic. Most people want physical security of their backups when they make that request, so I have provided a mechanism for improving physical security (through fragmenting).

I have no plans to implement user-input encryption strings into the backup system. Fragmented backups are what I implemented instead, and I encourage you explore whether they meet you needs, since they do for most users.

etotheipi

legendary

Activity: 1428

Merit: 1093

Core Armory Developer

Use the fragmented backups in the new version (0.90-beta). They were created to provide users with the ability to balance physical security and redundancy without the high-risk of permanent coin-loss associated with brainwallets (which is what you have if your backup requires information only contained in your brain to be useful).

Instead of a single backup (fragment 1) with a password in your head (fragment 2), simply make a 2-of-2 backup and store them separately. Or make 2-of-3 to add some redundancy so loss of one fragment doesn't destroy the entire wallet.

For M-of-N, M is the "security level": how many separate pieces/places/systems an attacker needs to compromise to take the wallet. N is the redundancy (well, N-M)... how many pieces can get destroyed/lost and the backup is still useful. Calibrate as needed -- you can go up to 5-of-6 in the standard interface, 8-of-12 if you switch to expert mode. You can get creative, like creating 4-of-8, and "priveleged holders" can have two fragments, and less-secure holders can have 1 fragment. For instance, each of two safe-deposit boxes might hold two fragments, but you and each of three family members might just keep one each in your house laying around. Etc.

oakpacific

hero member

Activity: 784

Merit: 1000

Quote from: ?? on ??

Quote from: server on December 03, 2013, 12:15:16 PM

Quote from: ?? on ??

Can i make my own string?

Nope, I believe it's an 11 pos pw

yeah, that wont work. esp if i have more than one and want to hold them over 20 years :/

1. Collect all these strings together into a piece of text;
2. Encrypt it offline with a proper tool and a key of your own choice;
3. Print the ciphertext, then store the paper copy somewhere.

Not sure if it would work for you.

server

legendary

Activity: 892

Merit: 1002

1 BTC =1 BTC

Invest in curing alzheimer and korsakov Wink

server

legendary

Activity: 892

Merit: 1002

1 BTC =1 BTC

Quote from: ?? on ??

Can i make my own string?

Nope, I believe it's an 11 pos pw

oakpacific

hero member

Activity: 784

Merit: 1000

Quote from: ?? on ??

Oh... thought he was going to add support for this.

Am i crazy?

Read my post, there is no difference between what you propose and what is already there.

oakpacific

hero member

Activity: 784

Merit: 1000

There is a "SecurePrint" option, which allows you to memorize another string on the screen, which would not be printed and must be input or the recovery could not be done.

server

legendary

Activity: 892

Merit: 1002

1 BTC =1 BTC

This works really well.

jingos

newbie

Activity: 23

Merit: 0

I don't think it will happen because the point of paper backups is that you just have to remember where it is and you can recover your wallet. You could however print to PDF and then do what you want with it.

El Cabron

vip

Activity: 840

Merit: 1000

has this been done yet?

if not ETA?

thanks

Topic: encrypted paper wallets? (Read 763 times)