Can a bitcoin address can be recovered from public key???

[pjsonowal]

Can a bitcoin address can be recovered from public key... If not so how is it related to bitcoin address???

[DarkHyudrA]

No way to do that.
You can only brute force, but that's useless, it would take literally forever to get the private key that matches the public key.
The concept is this: https://en.wikipedia.org/wiki/Public-key_cryptography

[hunnaryb]

This would kind of defeat the security of Bitcoin

[pjsonowal]

No way to do that.
You can only brute force, but that's useless, it would take literally forever to get the private key that matches the public key.
The concept is this: https://en.wikipedia.org/wiki/Public-key_cryptography

Then how did this guy Evil-Knievel in this thread https://bitcointalk.org/index.php?topic=421842.60 cracked an address with his script which he calls "horseshit"

[hunnaryb]

Its not impossible, its just very very low probability

[pjsonowal]

I was shocked to see a private key coming outta public key..... Dnt know what he did but it certainly seems bitcoin encryption things are loose....

[mexxer-2]

I was shocked to see a private key coming outta public key..... Dnt know what he did but it certainly seems bitcoin encryption things are loose....

He bruteforced it and got lucky, probablity of bruteforcing a private key is: 2 to the power of -124 if I am correct. At any rate, if you do not know about encryption of bitcoin, better not to make FUD statements. And well who knows it was his own address and he made it seem as if he cracked bitcoin encryption.

[pjsonowal]

I was shocked to see a private key coming outta public key..... Dnt know what he did but it certainly seems bitcoin encryption things are loose....

He bruteforced it and got lucky, probablity of bruteforcing a private key is: 2 to the power of -124 if I am correct. At any rate, if you do not know about encryption of bitcoin, better not to make FUD statements. And well who knows it was his own address and he made it seem as if he cracked bitcoin encryption.

Yeah it maybe.... Lol he is selling that horseshit for 2 btc damn.... Nice try scammer "Evil-Kenevil"

[Meuh6879]

Can a bitcoin address can be recovered from public key...

No.

https://www.youtube.com/watch?v=ZloHVKk7DHk

[Hugroll]

nope if it was possible then nobody's bitcoin would be safe, but if you are talking about HD wallets im pretty sure you can get the addresses from the Xpub key

[pjsonowal]

nope if it was possible then nobody's bitcoin would be safe, but if you are talking about HD wallets im pretty sure you can get the addresses from the Xpub key

Are you saying hd wallets like multibit HD WALLETS etc or like this...??

[CIYAM]

Can a bitcoin address can be recovered from public key... If not so how is it related to bitcoin address???

It seems that those replying so far do not understand the difference between a public and a private key.

The answer is *of course* a Bitcoin address can be determined from a public key as it is basically just a base58 formatted version of a cryptographic hash of the public key.

What you can't do is go from the Bitcoin address back to the public key (as cryptographic hashes are not reversible) and the public key of course can't be used to do anything like a tx without also having the private key (which cannot be determined from it).

[Lauda]

This might be related to the risk of Quantum computers breaking ECDSA. However, one should not worry much about this. If we come to the point where it is risky, we're probably going to change the algorithm to something better. People need to stop living in the far future (cause of fear), and start living in the present.

He bruteforced it and got lucky, probablity of bruteforcing a private key is: 2 to the power of -124 if I am correct. At any rate, if you do not know about encryption of bitcoin, better not to make FUD statements. And well who knows it was his own address and he made it seem as if he cracked bitcoin encryption.

Who and when? Links please.

[pjsonowal]

This might be related to the risk of Quantum computers breaking ECDSA. However, one should not worry much about this. If we come to the point where it is risky, we're probably going to change the algorithm to something better. People need to stop living in the far future (cause of fear), and start living in the present.

He bruteforced it and got lucky, probablity of bruteforcing a private key is: 2 to the power of -124 if I am correct. At any rate, if you do not know about encryption of bitcoin, better not to make FUD statements. And well who knows it was his own address and he made it seem as if he cracked bitcoin encryption.

Who and when? Links please.

This is the link https://bitcointalk.org/index.php?topic=421842.60 a guy name evil-kenevel cracked a private key outta public key and address

[Meuh6879]

all cracked "experimentation" are from a knowed private and public key.
  it's more easy when you know the direction ...

in real world, use the email to spam with porn ad derived with key map spyware ... and you have the wallet file send via dropbox (retrieved by the spyware).

[Ceizer54]

Can a bitcoin address can be recovered from public key... If not so how is it related to bitcoin address???

You can't recover bitcoins using public key as the name suggest it's a public key and you are allowed to share it with anyone...But every bitcoin address do have private key too which is required to recover your wallet and address and without it you can't recover yoir account..you can't just guess the private key and brute forcing is next to impossible because private key is very long in length..

[shorena]

Can a bitcoin address can be recovered from public key... If not so how is it related to bitcoin address???

It seems that those replying so far do not understand the difference between a public and a private key.

The answer is *of course* a Bitcoin address can be determined from a public key as it is basically just a base58 formatted version of a cryptographic hash of the public key.

What you can't do is go from the Bitcoin address back to the public key (as cryptographic hashes are not reversible) and the public key of course can't be used to do anything like a tx without also having the private key (which cannot be determined from it).

This[1] was so painfull to read, but to see the replies just continue...

Edit:

This is a public key: 0489AD08CA699563497B8F92AFE2252CBCBD5B2381C9E9E64C716B144BEE44B6E4B756B7AD5A17B 21E4D707694D182802A6C1285343C9BE48543F7FCEF54B7128D
There are two possible addresses for this.

Code:

addr 1: 12qjzbJipzAhLxjmLyAJG1dPMp8LhsaH9d
addr 2: 18eRS1oy9S6AEm55sK46bYtssRBRGM3dvg

This is how you get from the one to the other:



What you need to spend is the private(!) key.


[1] The rest of the thread not your reply.

[pjsonowal]

The only way you could do such a thing is if you know the public key originated from a brain wallet and you are able to figure out the words used on the wallet by possibly being very close to that person.

So thats why brainwallet is closed permanently for these security issues...

[pjsonowal]

Can a bitcoin address can be recovered from public key... If not so how is it related to bitcoin address???

It seems that those replying so far do not understand the difference between a public and a private key.

The answer is *of course* a Bitcoin address can be determined from a public key as it is basically just a base58 formatted version of a cryptographic hash of the public key.

What you can't do is go from the Bitcoin address back to the public key (as cryptographic hashes are not reversible) and the public key of course can't be used to do anything like a tx without also having the private key (which cannot be determined from it).

This[1] was so painfull to read, but to see the replies just continue...

Edit:

This is a public key: 0489AD08CA699563497B8F92AFE2252CBCBD5B2381C9E9E64C716B144BEE44B6E4B756B7AD5A17B 21E4D707694D182802A6C1285343C9BE48543F7FCEF54B7128D
There are two possible addresses for this.

Code:

addr 1: 12qjzbJipzAhLxjmLyAJG1dPMp8LhsaH9d
addr 2: 18eRS1oy9S6AEm55sK46bYtssRBRGM3dvg

This is how you get from the one to the other:



What you need to spend is the private(!) key.


[1] The rest of the thread not your reply.

hmmm.. that certainly answers my question...thanxxx your replies were worthy for me ..thnx for sharing some knowledge  

[aakashsangwan]

i dont think so that you can recover your bitcoin address from your public key, their is security options and 2fa security with this you can recover your bitcoin address.