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Author Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22]  (Read 1137290 times)
kingaltcoins
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November 15, 2015, 08:26:21 AM
 #2461

Can a bitcoin address having same digit throughout, (like : 1111111111111111111111111111111) be easily hacked? BTW, there is a major disadvantage of vanity address gen, i,e. someone might create an address starting with "1Satoshi", exchange his fiat currency worth 50 BTC, store it in that address and try to claim himself as Satoshi! Just saying. Tongue
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November 15, 2015, 08:29:51 AM
 #2462

Can a bitcoin address having same digit throughout, (like : 1111111111111111111111111111111) be easily hacked?

Nope. Last 4 would not match anyway.

BTW, there is a major disadvantage of vanity address gen, i,e. someone might create an address starting with "1Satoshi", exchange his fiat currency worth 50 BTC, store it in that address and try to claim himself as Satoshi! Just saying. Tongue

I would say that is a major disadvantage of people that are easily convinced. Satoshis addresses are very old, adding 50 btc in 2015 should not convince anyone, no matter what vanity address you generate.
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November 16, 2015, 06:58:12 PM
 #2463

Can a bitcoin address having same digit throughout, (like : 1111111111111111111111111111111) be easily hacked?

Nope. Last 4 would not match anyway.

It does seem like, in principle, it's possible that the checksum part of an address could be the same character repeated.  As for that character being the same as the rest of the address, I guess you've only 58 such address to check out, the 1s, the 2s, the 3s, ... the zs.
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November 16, 2015, 08:19:57 PM
 #2464

Can a bitcoin address having same digit throughout, (like : 1111111111111111111111111111111) be easily hacked?

Nope. Last 4 would not match anyway.

It does seem like, in principle, it's possible that the checksum part of an address could be the same character repeated.  As for that character being the same as the rest of the address, I guess you've only 58 such address to check out, the 1s, the 2s, the 3s, ... the zs.

Hmm, I cant do it right now for some reason, but it should not be possible. 1 is the 0 in base58 as bitcoin uses it. So you are essentially looking for a pubkey with ripemd160(sha256(pubkey)) = 0. That might be possible, but in order for the check sum to also be 0 you need the first 4 bytes of sha256(sha256(0)) to be 0 as well. Tried to create a valid address with some online tools[1][2], but somehow its not spitting out what I think it should. So maybe I miss something.

[1] http://lenschulwitz.com/base58
[2] http://www.xorbin.com/tools/sha256-hash-calculator
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November 16, 2015, 08:23:21 PM
 #2465

Can a bitcoin address having same digit throughout, (like : 1111111111111111111111111111111) be easily hacked?

Nope. Last 4 would not match anyway.

It does seem like, in principle, it's possible that the checksum part of an address could be the same character repeated.  As for that character being the same as the rest of the address, I guess you've only 58 such address to check out, the 1s, the 2s, the 3s, ... the zs.

Hmm, I cant do it right now for some reason, but it should not be possible. 1 is the 0 in base58 as bitcoin uses it. So you are essentially looking for a pubkey with ripemd160(sha256(pubkey)) = 0. That might be possible, but in order for the check sum to also be 0 you need the first 4 bytes of sha256(sha256(0)) to be 0 as well. Tried to create a valid address with some online tools[1][2], but somehow its not spitting out what I think it should. So maybe I miss something.

[1] http://lenschulwitz.com/base58
[2] http://www.xorbin.com/tools/sha256-hash-calculator

Or = 2222, or equals 3333, etc, right?  Anyway, it'd be a funny address if you found such a thing.  Maybe it'd make the hall of fame, i dunno.
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November 16, 2015, 08:26:47 PM
 #2466

Can a bitcoin address having same digit throughout, (like : 1111111111111111111111111111111) be easily hacked?

Nope. Last 4 would not match anyway.

It does seem like, in principle, it's possible that the checksum part of an address could be the same character repeated.  As for that character being the same as the rest of the address, I guess you've only 58 such address to check out, the 1s, the 2s, the 3s, ... the zs.

Hmm, I cant do it right now for some reason, but it should not be possible. 1 is the 0 in base58 as bitcoin uses it. So you are essentially looking for a pubkey with ripemd160(sha256(pubkey)) = 0. That might be possible, but in order for the check sum to also be 0 you need the first 4 bytes of sha256(sha256(0)) to be 0 as well. Tried to create a valid address with some online tools[1][2], but somehow its not spitting out what I think it should. So maybe I miss something.

[1] http://lenschulwitz.com/base58
[2] http://www.xorbin.com/tools/sha256-hash-calculator

Or = 2222, or equals 3333, etc, right?  Anyway, it'd be a funny address if you found such a thing.  Maybe it'd make the hall of fame, i dunno.

Oh, now I get it. Yes, that might be possible. Well, finding the pubkey probably not while the sun is still burning. It might however be possible to find a µ where all its base58 symbols are the same and sha256(sha256(µ)) = µ(+)some rest no one cares about.
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November 17, 2015, 10:24:17 AM
 #2467

I have a question about vanitygen . why can't I createa bitcoin address that starts with number 3 ?
I can only create addresses starts with "1"
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November 18, 2015, 01:13:25 AM
 #2468

I have a question about vanitygen . why can't I createa bitcoin address that starts with number 3 ?
I can only create addresses starts with "1"

Addresses that start with a 3 have a different version string byte than the ones that start with 1.  IIRC, the addresses with 3 prefix are the ones which are multisignature addresses.  I don't think vanitygen supports those at the moment.  You could presumably modify the program to do so, the code is available.

This might be helpful:

https://en.bitcoin.it/wiki/List_of_address_prefixes
https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses
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November 24, 2015, 05:40:49 PM
 #2469

I have played with vanitygen for ages generating address for Bitcoin as well as other addresses and love it. I thought I would take part in the mining pool but get a
Code:
vg_ocl_context_callback error: CL_OUT_OF_RESOURCES error waiting for idle
I believe this is a driver error. Is there a syntax that can be used to mine with CPU rather than GPU and / or, should I get my old desktop working again, what is a good graphics card to run this with please?

Also, should I eventually find some keys, I cannot see where to log in on https://vanitypool.appspot.com/ website to submit said keys?

Thanks for your time.

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shorena
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November 24, 2015, 05:54:33 PM
 #2470

I have played with vanitygen for ages generating address for Bitcoin as well as other addresses and love it. I thought I would take part in the mining pool but get a
Code:
vg_ocl_context_callback error: CL_OUT_OF_RESOURCES error waiting for idle
I believe this is a driver error. Is there a syntax that can be used to mine with CPU rather than GPU and / or, should I get my old desktop working again, what is a good graphics card to run this with please?

Also, should I eventually find some keys, I cannot see where to log in on https://vanitypool.appspot.com/ website to submit said keys?

Thanks for your time.

Check available work -> click on the pattern and it will show you a page where you can post the solution and your address. Is the site still active?
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November 24, 2015, 06:09:00 PM
 #2471

I have played with vanitygen for ages generating address for Bitcoin as well as other addresses and love it. I thought I would take part in the mining pool but get a
Code:
vg_ocl_context_callback error: CL_OUT_OF_RESOURCES error waiting for idle
I believe this is a driver error. Is there a syntax that can be used to mine with CPU rather than GPU and / or, should I get my old desktop working again, what is a good graphics card to run this with please?

Also, should I eventually find some keys, I cannot see where to log in on https://vanitypool.appspot.com/ website to submit said keys?

Thanks for your time.

Check available work -> click on the pattern and it will show you a page where you can post the solution and your address. Is the site still active?

Oops, sometimes I feel like a dumb dumb, I did not click the links of page... Thanking you kindly  Grin

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November 25, 2015, 01:50:11 AM
 #2472

I have a question about vanitygen . why can't I createa bitcoin address that starts with number 3 ?
I can only create addresses starts with "1"

You actually can using the

Code:
-X 5 or
-X 6

Switches.

Check out here http://cryptolife.net/upwg/ to cross verify (and start with some basic three digit vanities to ensure they work before going for the 369121518... vanity wallet.

Regards,

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November 25, 2015, 03:44:08 PM
 #2473

I'm trying to use the -f <filename> but its not working ?
Is it possible to search a whole batch of different patterns on the same run from a text file


-f <file>     File containing list of patterns, one per line
              (Use "-" as the file name for stdin)
-s <file>     Seed random number generator from <file>

If so could someone please reply with the proper command line for say   test.txt

Thanks in advance  Smiley
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November 25, 2015, 05:57:07 PM
 #2474

I'm trying to use the -f <filename> but its not working ?
Is it possible to search a whole batch of different patterns on the same run from a text file


-f <file>     File containing list of patterns, one per line
              (Use "-" as the file name for stdin)
-s <file>     Seed random number generator from <file>

If so could someone please reply with the proper command line for say   test.txt

Thanks in advance  Smiley
it would just be
Code:
vanitygen -f test.txt

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December 03, 2015, 11:38:09 PM
 #2475

This little program is wicked. Took down my i7 monster. Was sucking %100 of the CPU. A full 8 cores at %100. Had to shut her down to get it back. Didn't realize there was a worker thread option. Derr.


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December 06, 2015, 01:58:33 PM
 #2476

Thank you very much for this post.
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December 07, 2015, 03:03:15 AM
 #2477

thank you for this nice program, i created yesterday may own address with it but unfortunately my pc is old so i cannot make more than 5 characters 1xxxx if i try to add another i have to wait too many hours for 50% and for days for another char Grin
kingaltcoins
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December 11, 2015, 10:52:31 AM
 #2478

I tried running vanity gen in order to get an address with the prefix 1King1 but it was showing that I'll have to wait for 10 days in order to reach a probability of 50% only! Shocked

I think my processor sucks! (Intel Core 2 Duo) Cry

Moreover the gen makes my computer laggy most of the times. I can't even open Task Manager!
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December 11, 2015, 11:55:42 AM
 #2479

I tried running vanity gen in order to get an address with the prefix 1King1 but it was showing that I'll have to wait for 10 days in order to reach a probability of 50% only! Shocked

I think my processor sucks! (Intel Core 2 Duo) Cry

Moreover the gen makes my computer laggy most of the times. I can't even open Task Manager!

If you a decent GPU try running oclvanitygen it might take significant less time.
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December 11, 2015, 03:39:01 PM
 #2480

I tried running vanity gen in order to get an address with the prefix 1King1 but it was showing that I'll have to wait for 10 days in order to reach a probability of 50% only! Shocked

I think my processor sucks! (Intel Core 2 Duo) Cry

Moreover the gen makes my computer laggy most of the times. I can't even open Task Manager!

 I will make you several 1King1 addresses in seconds if you give me a "Step 1 Public Key" from bitaddress.org

Go to the site bitaddress.org, move your mouse around to add the randomness required then click on the "vanity wallet" button.  On that page look at "Step 1" - you will see a "generate" button.  Click it.
Copy the "Step 1 Public Key" and post it in a msg to me.  Copy the "Step 1 Private Key" and keep that to yourself.  You will need it when I send you my part private keys to combine to calcualte your addresses and corresponding private keys.  You will recombine them in that same vanity wallet window and it will give you your private key (you have to do one at a time).

 
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