Bitcoin Forum

Bitcoin => Bitcoin Discussion => Topic started by: Steve on July 21, 2012, 03:37:34 AM



Title: Store 30 character password in your subconscious
Post by: Steve on July 21, 2012, 03:37:34 AM
Thought this would be of interest to people here…
http://www.extremetech.com/extreme/133067-unbreakable-crypto-store-a-30-character-password-in-your-brains-subconscious-memory

there are probably many other kinds of patterns that the brain would be good at learning…these 3d gesture input devices come to mind (http://www.technologyreview.com/view/428350/the-most-important-new-technology-since-the-smart/) …I can imagine an disconnected device that reads your gesture input, hashes it with a domain name and userid and yields a long password for use in authenticating… the software or website could communicate the the domain/username to the device and the device could communicate the secure, generated password back to the site…that would be the only communication the device was capable of once initialized.


Title: Re: Store 30 character password in your subconscious
Post by: nimda on July 21, 2012, 03:56:29 AM
How does one "hash" this password? If the user only has to "play" within 80% accuracy, then surely the password is stored in the clear ::)


Title: Re: Store 30 character password in your subconscious
Post by: Steve on July 21, 2012, 04:38:02 AM
How does one "hash" this password? If the user only has to "play" within 80% accuracy, then surely the password is stored in the clear ::)
You don't have to reproduce motions precisely to yield a consistent input…think of it like typing letters on a keyboard…you don't have to hit them squarely in the middle every time to produce the desired letter.  You then take the input, hash it with some other data (provided by the software or website) to yield a password of sorts (like passwordmaker.org).  Of course, it could also be used to decrypt a private key and sign a transaction. 

I just think it would be cool to be able to wave your hands in the air in a certain, repeatable pattern to sign a transaction.  ;)


Title: Re: Store 30 character password in your subconscious
Post by: unclemantis on July 21, 2012, 04:53:26 AM
How does one "hash" this password? If the user only has to "play" within 80% accuracy, then surely the password is stored in the clear ::)
You don't have to reproduce motions precisely to yield a consistent input…think of it like typing letters on a keyboard…you don't have to hit them squarely in the middle every time to produce the desired letter.  You then take the input, hash it with some other data (provided by the software or website) to yield a password of sorts (like passwordmaker.org).  Of course, it could also be used to decrypt a private key and sign a transaction. 

I just think it would be cool to be able to wave your hands in the air in a certain, repeatable pattern to sign a transaction.  ;)

where is the link to the game!?


Title: Re: Store 30 character password in your subconscious
Post by: istar on July 21, 2012, 09:43:44 AM
But cant they just put you in front of that game? And then you will give it out without
even knowing it, since you dont know the password...


Title: Re: Store 30 character password in your subconscious
Post by: grantbdev on July 21, 2012, 04:58:33 PM
Would this be useful in remembering our Bitcoin addresses?


Title: Re: Store 30 character password in your subconscious
Post by: Vitalik Buterin on July 22, 2012, 03:11:11 PM
Would this be useful in remembering our Bitcoin addresses?

Not really. It requires external software, and at that point you're better off using firstbits. Memorizing the seed for your private key, theoretically yes, but practically it's highly insecure because the system has to know what your private key is.