Post
Topic
Board Project Development
Re: Bitcoin Wallet generation by hand
by
tspacepilot
on 05/09/2013, 18:14:28 UTC
Hashes are impossible by hand...
Wouldn't a LiveCD on an offline HDD-less PC enough?

I haven't looked at the details of the hashing algorithm used to generate the public address from the private key.  However, I don't think impossible is correct.  I mean, everything a computer does can (in principle) be simulated using a very long tape and a pencil (see universal Turing machine).

Im just saying, difficult/tedious != impossible.

You want to play with semantics?

Ok, let's play.


[snip]

Basic maths gives that Q > 1 - 7604/2^1000 = 1 - 10^(-297.149) > 1 - 10^(-297)
So R < 10^(-297) < 1/2^986
Yes, R < 1/2^986



TLDR

It's easier to crack 6 different bitcoin addresses with only 6 guesses than to a human to calculate a correct bitcoin address hash in his lifetime
Yes, I call that impossible

Yes, I love semantics!

Sorry, I only skimmed the maths, but as far as I can tell your argument is based on the improbability of finding the right answer and the speed of calculation of a human also taking into consideration the length of a lifespan.

You've certainly convinced me that it's improbable.  But improbable != impossible. 

Really, all I have to do now is employ the 6.5 billion humans in the world at this task and implement a reasonable work-sharing scenario.  Smiley