vanitygen allows you to specify part of your bitcoin address.

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40 views

Why does vanitygen warns me to update an up-to-date OpenSSL?

I tried to generate an address with vanitygen. Because I'm on a MBP 2010 it took a while onthe CPU (not finished yet, two times up to 20%) and now I am trying to get it working with my GPU (NVidea ...
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1answer
49 views

Restarting Vanitygen

I want to create a bitcoin address which starts with a certain passphrase (1mathias, case insensitive). That idea came from this question, and I quite liked it. After some trouble making the file on ...
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2answers
262 views

Use multiple GPU's with oclvanitygen

Does anyone know how to use multiple GPU's with oclvanitygen? For example I have the following available:- Available OpenCL platforms: 0: [Intel(R) Corporation] Intel(R) OpenCL 0: [Intel(R) ...
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1answer
150 views

Using vanitygen To generate addresses for different cryptocurrencies

I know how to use vanitygen but how do you determine the number that will correspond to the -X parameter for a different cryptocurrency? For example it is -X 30 for Dogecoin.
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1answer
87 views

Bash BTC and LTC address generator

Do you know any bash script or C simple program to generate btc and ltc addresses? I need to generate address while in recovery mode on osx or on a linux onthefly. But I cannot find such a thing on ...
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2answers
171 views

How do I use Vanitygen on Fedora 20? (openssl restrictions)

I have seen several methods for building bitcoin from source on Fedora, but I have not seen corresponding information for vanitygen. It builds, and it starts up, but then it gives me the error: ...
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0answers
108 views

oclvanitygen bulk generate

If I search for say "1Random*" with oclvanitygen, my GTX 570 gets about 25MKey/s. I assume that it is actually generating 25 million keys per second, running them through ECDSA and the hashes, and ...
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2answers
82 views

Vanitygen regular expression match

Using regular expression match instead of prefix, is there a way to add a difficulty and probability check? Seems to only report keys/s and total keys tested.
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3answers
277 views

If Bitcoin addresses are truely random, then why are some more difficult to generate than others?

In this post TierNolan explains why 'Bitpoin' is much easier to generate than 'bitpoin', and that mainly has to do with the position (first character). But I remember that certain characters (I ...
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2answers
317 views

Is it possible to generate a complete public address with vanitygen?

FAQ says it's possible to use vanitygen to search for a match to a complete address yet when I input a complete address I get an "is too long" error message. Is there a way to run vanitygen using a ...
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1answer
358 views

How would I generate a valid vanity address for destroying coins?

I want to generate very long vanity addresses, with the relaxed constraint that I don't need the corresponding private key, they only need to be valid Bitcoin addresses. How would I do this? Example: ...
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2answers
299 views

Decrypting Vanitygen Protected Key

I've used Vanitygen to generate a vanity Bitcoin address. I used the "-e" option to encrypt the private key. What I can't figure out is how to decrypt the protected key that was provided after ...
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1answer
321 views

Are there any limitations to vanity addresses?

I have noticed that many bitcoin addresses begin with numbers or uppercase characters. I realize that all addresses begin with the number one but can I generate an address with the second character ...
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2answers
2k views

oclvanitygen not showing private key?

I am trying to generate my own address using my GPU with oclvanitygen, but it seems like that it only displays the: CPU hash GPU hash, and Found delta but not a private key? Any idea why? ...
4
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2answers
830 views

Vanitygen: Why is it easier to generate an address that starts with a capital letter?

Shouldn't it be the same? I get a much lower length of time if i make the first character a capital letter instead of a lowercase letter, when trying to generate a public key with Vanitygen. Has ...
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3answers
2k views

How to pre-generate 100M bitcoin addresses?

What is the best method to generate large numbers of bitcoin addresses? I imagine something like the following would break bitcoind in some fashion: ./bitcoind keypool=100000000
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1answer
508 views

How does vanitygen calculate difficulty?

It seems really random. 1d is 1353, 1L is 22, 11 is 256, 11L is 78508, 11x is 78508, 111 is 65536, 112 is is 1335, 113 is 1330, 114 is 1330, 1L1 is 1330. I thought it was 58 to the power of the ...
3
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1answer
389 views

Is it possible to create an address from a predefined private key?

I was not sure how to formulate the question title. What I want to achieve is the same as VanityGen and many other tools do to create an address starting with a predefined part, but with private keys. ...
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0answers
131 views

Is anyone mathematically adding a Brain Wallet key with a hosted wallet (like vanitygen) for extra security?

This question is inspired by how the Vanity Gen pool operates. Basically there are two sets of keys and addresses: one that is stored at the Wallet hosting provider, the other set is derived from a ...
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3answers
1k views

what are the chances of vanitygen address - private key pair collision?

With no random number seed specified, assuming all vanitygen runs start with specific chunk for iteration, what are the possibilities of two different vanitygen runs to end up with the same address - ...
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2answers
356 views

How easy is finding related vanity addresses?

Is it easy to find out related vanity address '1googlex' if we already know '1google' vanity address pair, than through usual vanitygen iteration process? if yes, can this be extended further, like, ...
2
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1answer
814 views

OSX Vanitygen broken makefile

Whenever I try to install by running "make" it gives me tons of errors. $ make cc -ggdb -O3 -Wall -c -o pattern.o pattern.c pattern.c:32:18: error: pcre.h: No such file or directory pattern.c:1604: ...
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0answers
257 views

Vanity Mining Error?

Well after getting a new graphics card (7770) I can mine bitcoins at around 120 - 180 Mhash/s Depending if I run it at full power or not. Now I thought I would try and mine myself an address using it ...
2
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1answer
773 views

How do I optimize my usage of oclvanitygen?

I'd like to extract the most performance possible from oclvanitygen. Can anyone tell me what the best practices are with this tool? Examples may include: Use operating system X, or video card Y ...
2
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2answers
301 views

Need a random seed for vanitygen; where can I obtain one?

Vanitygen has the option for a file to contain random numbers as an alternative to the built-in random number generator. What is the correct way to generate this file on Windows, OSX? (and Linux) ...
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3answers
273 views

How can I test and verify a vanity key before I send coins to it?

I ran vanitygen and oclvanitygen on the same machine, and realized after my run that both exe's share the same output file. I've had experience in the past where many programs append to the same TXT ...
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2answers
357 views

Do vanity addresses lower the security of my key? (reduced complexity)

Do vanity addresses somehow decrease the security of my private key?
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3answers
3k views

OSX Vanitygen error: pattern.c:32:10: fatal error: 'pcre.h' file not found

I get the error below when I try to make vanitygen according to the instructions listed in "install" Error from make (short version) 27 warnings generated. cc -ggdb -O3 -Wall -c -o pattern.o ...