Topic: Brutforcing a wallet - page 4. (Read 8228 times)
Why would you even want to bruteforce a wallet anyway? Are you a nasty thief that has nothing else to steal?
That's 100m public addresses with unspent outputs divided by the number of all possible addresses including collisions, or more simply the probability of any address of having an unspent output.
edit: Oh, duh, it's the inverse of that, sorry. X)
edit: Oh, duh, it's the inverse of that, sorry. X)
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Forget about that vanitygen stuff. Check out Evil-Knievel's Private Key cracker instead ... it operates 1000x faster than vanitygen 
https://bitcointalksearch.org/topic/m.4588472
https://bitcointalksearch.org/topic/m.4588472
Let's see... 150,000,000 keys per sec on a 7970, or 1.5 * 10^8 k/s. There are maybe 1.0 * 10^8 Bitcoin addresses with unspent outputs.
If I remember right, the complexity of addresses is 2^128. So, you have 1/(1.0 * 10^8 / 2^128) = 3.4 * 10^30 keys as the inverse of your probability for finding any private key to some unspent output (or basically, your reduced search space after accounting for all keys with unspent outputs).
That's (3.4 * 10^30 k / [1.5 * 10^8 k/s]) = 2.3 * 10^22 seconds to find a single private key to spend a random address' Bitcoins with a single 7970.
That's only 52,000 * the age of the entire universe, so you should find one pretty quick!
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This doesn't even apply to point groups...just hashes. I know you still can't get the keys. Just a question about hash functions in general.
So I've tried to stare at hash code and stare and stare and figure out what actually make its irreversible. Obviously, I lost track of the bits (I was trying to keep it together up here -> but I didn't follow along..lost it somewhere around xor...).
But... is the irreversibility actually fundamental? if you could ultra slow motion camera the bits literally flipping due to electrical impulses in the CPU, could you not play the movie backward discovering the inverse of the hash?
Parity and time reversal NeOne!?
So I've tried to stare at hash code and stare and stare and figure out what actually make its irreversible. Obviously, I lost track of the bits (I was trying to keep it together up here ->
but I didn't follow along..lost it somewhere around xor...).But... is the irreversibility actually fundamental? if you could ultra slow motion camera the bits literally flipping due to electrical impulses in the CPU, could you not play the movie backward discovering the inverse of the hash?
Parity and time reversal NeOne!?
It is not hard to find a wallet(the bitcoin address) with enormous amount of money in it.
Its not hard to find a network with enormous amount of hashing power(any pool).
Bitcoin ASICs can't generate private key / address pairs. They can only mine blocks.Its not hard to find a network with enormous amount of hashing power(any pool).
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So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
Like I said, pools with their ASICs can't "break" addresses. And even if they could, it would take far longer than it takes the sun to burn out and die. The address space is simply that large.It is not hard to find a wallet(the bitcoin address) with enormous amount of money in it.
Its not hard to find a network with enormous amount of hashing power(any pool).
So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
Its not hard to find a network with enormous amount of hashing power(any pool).
So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
Pretty much impossible. It would take many many lifetimes over. Don't believe me try it! https://en.bitcoin.it/wiki/Vanitygen
Here I tried to brute force this address https://blockchain.info/address/1FfmbHfnpaZjKFvyi1okTjJJusN455paPH better known as DPR's coins.
http://i.imgur.com/D4Buoip.jpg
lol that wallet would be worth "mining"
I know to little of cryptography to even start...
Isnt cracking the privatkey about the same work as we already do?
The vanity thing. its just making random addresses and when you find the right public key you also have the private key?
Isnt cracking the privatkey about the same work as we already do?
The vanity thing. its just making random addresses and when you find the right public key you also have the private key?
It is not hard to find a wallet(the bitcoin address) with enormous amount of money in it.
Its not hard to find a network with enormous amount of hashing power(any pool).
So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
Its not hard to find a network with enormous amount of hashing power(any pool).
So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
Pretty much impossible. It would take many many lifetimes over. Don't believe me try it! https://en.bitcoin.it/wiki/Vanitygen
Here I tried to brute force this address https://blockchain.info/address/1FfmbHfnpaZjKFvyi1okTjJJusN455paPH better known as DPR's coins.
You can't just access a wallet if you know it's address. You need to know the private keys, which are private.
It is not hard to find a wallet(the bitcoin address) with enormous amount of money in it.
Its not hard to find a network with enormous amount of hashing power(any pool).
So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
Its not hard to find a network with enormous amount of hashing power(any pool).
So my question is; How safe is it realy? How long time would it take for a big pool to break a singel address and can it be done?
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