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Author Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22]  (Read 1150520 times)
bigvito19
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October 18, 2020, 10:04:42 AM
 #3721

there is no difference between 1 and 580000 addresses, the speed is limited by the random number generator

why can't I set more than 19 characters to Vanitygen64, in case I get lucky and the whole address is generated quickly? Probably the fact is that this is a calculation and not a random generation, faster than the estimated time calculation is impossible, unlike random generenation in another program


This one you can put in the whole address

https://bitcointalk.org/index.php?topic=5112311.0
https://github.com/JeanLucPons/VanitySearch
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October 18, 2020, 10:22:29 AM
 #3722

I just did a small research about how difficult it is to guess a bitcoin address. All private keys are 2256 but the total addresses aren't that many. They are 2160 as @nullius said.

Now let's compare 2160 with another huge number:

14,615,016,400,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (2160)
133,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (Total atoms that exist on our planet)
That answer comes from an estimation of the number of atoms in each of Earth's elements, like Iron, Oxygen, Silicon, Magnesium, Sulfur … etc

It's scary to think how many different combinations of addresses can exist. Imagine that one water drop contains about 5 sextillion atoms. (5.01 x 1021)

Imagine picking one atom randomly from the earth and expecting someone to guess it.
When your computer generates an address is like picking one atom from ~10,000 different Earths.

You can't brute force a bitcoin address. You just can't.

bigvito19
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October 18, 2020, 11:12:55 AM
 #3723

I just did a small research about how difficult it is to guess a bitcoin address. All private keys are 2256 but the total addresses aren't that many. They are 2160 as @nullius said.

Now let's compare 2160 with another huge number:

14,615,016,400,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (2160)
133,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (Total atoms that exist on our planet)
That answer comes from an estimation of the number of atoms in each of Earth's elements, like Iron, Oxygen, Silicon, Magnesium, Sulfur … etc

It's scary to think how many different combinations of addresses can exist. Imagine that one water drop contains about 5 sextillion atoms. (5.01 x 1021)

Imagine picking one atom randomly from the earth and expecting someone to guess it.
When your computer generates an address is like picking one atom from ~10,000 different Earths.

You can't brute force a bitcoin address. You just can't.

That's where y'all get it wrong at, y'all keep trying to brute force the whole space. You have to know exactly where the range of the address is in then brute force that.
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October 18, 2020, 11:13:42 AM
 #3724

low probability is not a hindrance, there is a person who won the lottery twice on the same combination, just adjust your thoughts correctly, and the result will attract

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October 18, 2020, 11:15:35 AM
 #3725

there is no difference between 1 and 580000 addresses, the speed is limited by the random number generator

why can't I set more than 19 characters to Vanitygen64, in case I get lucky and the whole address is generated quickly? Probably the fact is that this is a calculation and not a random generation, faster than the estimated time calculation is impossible, unlike random generenation in another program


This one you can put in the whole address

https://bitcointalk.org/index.php?topic=5112311.0
https://github.com/JeanLucPons/VanitySearch

thank you!

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October 18, 2020, 11:16:12 AM
 #3726

That's where y'all get it wrong at, y'all keep trying to brute force the whole space. You have to know exactly where the range of the address is in then brute force that.

But you can't know within what range was the private key of the address once it was chosen. Can you explain it a little more? I'm not an expert.

bigvito19
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October 18, 2020, 01:12:39 PM
Merited by johhnyUA (1)
 #3727

That's where y'all get it wrong at, y'all keep trying to brute force the whole space. You have to know exactly where the range of the address is in then brute force that.

But you can't know within what range was the private key of the address once it was chosen. Can you explain it a little more? I'm not an expert.

First of all you should be going after addresses with its public key already exposed. That's 2^128 search range right there. You should be generating addresses/keys from the desired public key. The next step would be to find a partial collision of the key and brute force the remaining of the key or half 2^128 to 2^64.
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October 18, 2020, 01:21:01 PM
 #3728

First of all you should be going after addresses with its public key already exposed. That's 2^128 search range right there. You should be generating addresses/keys from the desired public key. The next step would be to find a partial collision of the key and brute force the remaining of the key or half 2^128 to 2^64.
Wait how is that possible? What can you do with a public key? Knowing the x and y axis won't benefit you on doing brute force. The possibilities of finding the same public key are 1 in 2256.

That's 2^128 search range right there.
How did you conclude that?

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October 18, 2020, 02:14:23 PM
Last edit: October 18, 2020, 02:26:09 PM by bigvito19
Merited by johhnyUA (1)
 #3729

First of all you should be going after addresses with its public key already exposed. That's 2^128 search range right there. You should be generating addresses/keys from the desired public key. The next step would be to find a partial collision of the key and brute force the remaining of the key or half 2^128 to 2^64.
Wait how is that possible? What can you do with a public key? Knowing the x and y axis won't benefit you on doing brute force. The possibilities of finding the same public key are 1 in 2256.

That's 2^128 search range right there.
How did you conclude that?


You need to read on this then

https://bitcointalk.org/index.php?topic=5244940.0
https://github.com/JeanLucPons/Kangaroo

Searching with the public key reduces the search space of 2^256 to 2^128.
alevlaslo
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October 18, 2020, 02:48:13 PM
 #3730

From 2^160 to 2^128

And you can find the key in 1 second, if you are lucky, the probability is small, but above zero

the cost of busting is very high, the production will be less, it is better to tune in to luck and low power Wink

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October 18, 2020, 03:14:39 PM
 #3731

That's 2^128 search range right there.
How did you conclude that?

Cryptographic strength of a secp256k1 (and hence a public key) is 128 bit:
https://www.secg.org/sec2-v2.pdf

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February 13, 2021, 10:08:06 AM
 #3732

Hi, i try to generate a address that starts with 1eevee, after 3000+ results there is no address that starts with 1 EEVEE. (so all capital lettes)

I use:  oclvanitygen.exe -v -i -D 0:0,grid*1024x1024 -f names7.txt -o eevee.txt



When i change it to:

oclvanitygen.exe -v -D 0:0,grid*1024x1024 -f names7.txt -o eevee.txt  (so without -i), he founds it after 10 seconds!, can someone explain this?

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February 13, 2021, 10:51:40 AM
 #3733

Hi, i try to generate a address that starts with 1eevee, after 3000+ results there is no address that starts with 1 EEVEE. (so all capital lettes)

I use:  oclvanitygen.exe -v -i -D 0:0,grid*1024x1024 -f names7.txt -o eevee.txt



When i change it to:

oclvanitygen.exe -v -D 0:0,grid*1024x1024 -f names7.txt -o eevee.txt  (so without -i), he founds it after 10 seconds!,

can someone explain this?
Option "-i" makes your search case-insensitive, so you can expect many more results. But if you find 1EEVEE without "-i", that means you entered 1EEVEE in full caps in names7.txt.
It's very unlikely to find 3000+ variations of "eevee" without one in full caps though.

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February 13, 2021, 11:32:06 AM
 #3734

Hi, i try to generate a address that starts with 1eevee, after 3000+ results there is no address that starts with 1 EEVEE. (so all capital lettes)

I use:  oclvanitygen.exe -v -i -D 0:0,grid*1024x1024 -f names7.txt -o eevee.txt



When i change it to:

oclvanitygen.exe -v -D 0:0,grid*1024x1024 -f names7.txt -o eevee.txt  (so without -i), he founds it after 10 seconds!,

can someone explain this?
Option "-i" makes your search case-insensitive, so you can expect many more results. But if you find 1EEVEE without "-i", that means you entered 1EEVEE in full caps in names7.txt.
It's very unlikely to find 3000+ variations of "eevee" without one in full caps though.

Yes it's very unlikely but true!..i have searched 3382 addresses to be eaxctly and none where 1EEVEE.
I am going to test this another time with 10000 searches.
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February 13, 2021, 03:23:11 PM
 #3735

I did 10.000+ searches and not even 1 1EEVEE!, must be something in the bitcoin address structure that doesnt allow this combination, if u dont belive me try it yourself.
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February 13, 2021, 03:51:58 PM
 #3736

I did 10.000+ searches and not even 1 1EEVEE!, must be something in the bitcoin address structure that doesnt allow this combination, if u dont belive me try it yourself.

Both E and V are base58 digits so this combination is possible. However there is as 1/(58^5) % chance of finding an address beginning with it. Which means for every one address starting with 1EEVEE, there are 656,356,767 that start with something else.

Now your key rate for a GPU in Kkeys/s is going to be something along the lines of (GPU Cores) x (Shader MHz) x some small but unknown constant. So you're going to have to run this for at most 65635 seconds or almost 19 hours to find a 1EEVEE (and by extension a 1eevee) address.

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February 13, 2021, 03:58:58 PM
 #3737

I did 10.000+ searches and not even 1 1EEVEE!, must be something in the bitcoin address structure that doesnt allow this combination, if u dont belive me try it yourself.
The difficulty to compute 1eevee with case sensitive is roughly 264104224. Which makes it 1 in 264104224.

I tried running it with vanitysearch (more optimized than vanitygen) with my 1080TI and I found like 7 of them within 5 seconds. You won't be able to find any of those vanity addresses if you only generate such a small space of addresses.

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February 13, 2021, 04:29:00 PM
 #3738

I did 10.000+ searches and not even 1 1EEVEE!, must be something in the bitcoin address structure that doesnt allow this combination, if u dont belive me try it yourself.
This took a few seconds:
Code:
./oclvanitygen 1EEVEE -ik
Difficulty: 15956296
Pattern: 1EEVEE                                                               
Address: 1EeveeUmLzb4XrR5ig38uARZPBvMGHENrU
Privkey: 5J5Wj1EQsXi5o8iSmvnExs22DWDfXmYqvvFHNeQSypvM7JyuQya
Pattern: 1EEVEE                                                               
Address: 1EEVEELTN8APXaASXQrPE1QVFzANJxuXfS
Privkey: 5HtbZPDRA1Q17nQAwcydfQJtoyZV3a2B3xLK1jnyi89dWQX871z
Pattern: 1EEVEE                                                               
Address: 1EevEEmC5FVMfs52b4S167UE6X69BgQ5T
Privkey: 5KgxnjfLNuoDdVb2KPrHQoHMmHWptwBkTy2fCcDUE9dNQwkAN82

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February 13, 2021, 06:09:10 PM
 #3739

Hello all,

i tried it several times but i can not run oclvanitygen.exe on my win10 machine with my AMD RX 480 card.

Knows any in this topic the right syntax to use my GPU instead of my CPU. CPU search with "vanitygen64.exe -i -o priv.key.txt 1WiLLi9974" works fine, but takes to long and i would run the search with my GPU.

Best regards,
Willi
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February 17, 2021, 03:52:14 PM
 #3740

Hello all,

i tried it several times but i can not run oclvanitygen.exe on my win10 machine with my AMD RX 480 card.

Knows any in this topic the right syntax to use my GPU instead of my CPU. CPU search with "vanitygen64.exe -i -o priv.key.txt 1WiLLi9974" works fine, but takes to long and i would run the search with my GPU.

Best regards,
Willi

When you build the codebase there's another program available called oclvanitygen. It uses OpenCL to run on GPUs so use that one instead and experiment with the command-line options that work best for you.

In particular, there's a -D option for choosing the device, and -w -t -g options to control the grid size and the amount of work per thread.

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