[Newbie question] Wallets repeating ?

[adrd]

Is it possible that when I create my wallet it will be created with the same security key as a wallet that was previously created and used? Wallets are created offline so how it checks if it isn't duplicated? Even if this is highly unlikely, is it possible?

[1713912773]

1713912773

[gadman2]

It is possible, just highly unlikely likely.

[rme]

Its possible that you win 7 times the lottery and you die 1 second after?
Yes.

[Remember remember the 5th of November]

Is it possible that when I create my wallet it will be created with the same security key as a wallet that was previously created and used? Wallets are created offline so how it checks if it isn't duplicated? Even if this is highly unlikely, is it possible?

It is possible, but as people said, highly unlikely. Bitcoin generates the private keys via a pseudo-random generator that uses various data from the OS as the seed(internally in OpenSSL).

[adrd]

What if I create 1000000000 addresses?

[cp1]

More like 1208925819614629174706176 addresses

[mgio]

Its possible that you win 7 times the lottery and you die 1 second after?
Yes.

That would be ironic. Don't ya think?

[cp1]

Its possible that you win 7 times the lottery and you die 1 second after?
Yes.

That would be ironic. Don't ya think?

It's like generaaaaaaaaaating the same bitcoin address

[nobbynobbynoob]

It's like generaaaaaaaaaating the same bitcoin address

It's a free advance on your Mt Gox trades
It's the USD that you just can't take
And they've always fudged the figures

...or something like that.

+bitcointip cp1 0.005 BTC

[acoindr]

What if I create 1000000000 addresses?

What if you create 1,000,000,000 addresses? You have no worry. Here's why. That number is 1 billion or 10^9.

Imagine how many grains of sand there are on a beach. Got it? Now, realize that in one grain of sand there are about 22,000,000,000,000,000,000 atoms (over 10^18).

Now imagine how many atoms there must be in the entire universe. Got it?

Realize the number of possible bitcoin addresses is about 1 for every 8 atoms in the universe.

[Obama]

hmm that is weird

[MarpleTrading]

If you would have searched a little you would have found this thread that was created last Friday.

https://bitcointalk.org/index.php?topic=246544.0

[adrd]

If you would have searched a little you would have found this thread that was created last Friday.

https://bitcointalk.org/index.php?topic=246544.0

Somehow I didn't find, mayby because I was looking for wallet and not public key.

Anyways - can I find anywhere how EXACLY are public keys generated? How random are they?

[Killdozer]

[DannyHamilton]

If you would have searched a little you would have found this thread that was created last Friday.

https://bitcointalk.org/index.php?topic=246544.0

Somehow I didn't find, mayby because I was looking for wallet and not public key.

Anyways - can I find anywhere how EXACLY are public keys generated? How random are they?

Sure.  You can look in the source code.

I believe that the keys are generated with a call to EC_KEY_generate_key() from the OpenSSL library after a call to RandAddSeedPerfmon()