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    Author Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22]  (Read 1155141 times)

    • stevegee58
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    September 03, 2012, 02:43:07 PM
     #721
    You poor, poor Mac people.  If you want to play with the big boys you're gonna have to break out of the walled garden and get some real power tools.  Tongue
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  • axus
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    September 06, 2012, 02:11:13 AM
     #722
    I compiled it on Windows, and I had the same problem.  Use the -o keyfile.txt option to write to file instead of standard out.

    Quote from: The00Dustin on August 28, 2012, 02:01:22 PM
    Quote from: runlinux on August 28, 2012, 12:42:06 PM
    He's not the only one with the issue.
    I think I had that same issue trying to gpu-mine with self-compiled code on linux.  I just gave up and use Windows.

  • oldschool
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    September 10, 2012, 09:25:28 PM
     #723
    I posted a thread here:

    https://bt.irlbtc.com/view/108451.0

    Asking how to decrypt the protkey back to a privkey when using the -e flag and specifying a password.

    Output like this:

    Pattern: 1wtf
    Address: 1WtFgLCoA56syuVLbvzCNzooTrKEpqyA8
    Protkey: PsRUGbymw545hfYUAg5v8uNuVcxwtXWg646JkZ7nSm1dDRvHk5rTd8HrQv452ctz6fP2

    and -e password used was 'wtf'

    I tried several wallets, none of them recognized the protkey, is there a specific wallet or a command line tool for decrypting the protkey back to a privkey?

  • flatfly
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    September 20, 2012, 03:56:08 PM
     #724
    Is there anyway to force generation of the exact same sequence of addresses twice?
    (I actually hope not.)

    I tried playing with seed files but perhaps I misunderstood what those are for.
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  • oldschool
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    September 20, 2012, 07:29:05 PM
     #725
    Quote from: flatfly on September 20, 2012, 03:56:08 PM
    Is there anyway to force generation of the exact same sequence of addresses twice?
    (I actually hope not.)

    I tried playing with seed files but perhaps I misunderstood what those are for.

    Seed files would be to seed the random number generator.  If you ran the same seed file at the exact same computer time on the exact same computer it could be possible to produce the same results or at least greatly reduce the entropy needed to find the results.  The seed file is any file that will change the outcome of the random selection.

    There is a lot more involved with the internal random number generator but this is the short explanation.  Basically the seed file gives another source of randomized input.

  • Kazimir
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    September 22, 2012, 07:53:09 PM
     #726
    Vanitygen is great, but I'm having an issue with the OCL version: it works, but if I abort it (by pressing Ctrl+C or terminating the process or any other way), my PC completely freezes and I have to turn it off & on.
    The non-OCL version (either 32 or 64 bit) do not show this behavior.

    I'm running Windows 7 x64 and a GTX560 with latest drivers.
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  • tgbtc
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    September 25, 2012, 10:14:09 PM
    Last edit: September 26, 2012, 08:11:37 AM by tgbtc
     #727
    Can't get the ocl version to work...

    On nvidia:

    Code:
    vg_ocl_context_callback error: CL_MEM_OBJECT_ALLOCATION_FAILURE error executing CL_COMMAND_NDRANGE_KERNEL on GeForce GTX 285 (Device 0).

    clWaitForEvents(NDRange,0): CL_MEM_OBJECT_ALLOCATION_FAILURE
    Device: GeForce GTX 285
    Vendor: NVIDIA Corporation (10de)
    Driver: 285.62
    Profile: FULL_PROFILE
    Version: OpenCL 1.0 CUDA
    Max compute units: 30
    Max workgroup size: 512
    Global memory: 1073741824
    Max allocation: 268435456

    on 7970:
    (seems it is finding matches, but disregarding due to mismatch?
    Code:
    CPU hash: 6707a76e848f5e9368c2d9d9ec6d60880df44891
    GPU hash: 020b0bda39a9bbb2eeddd194a8be20934835dff6
    Found delta: 94027 Start delta: 1

    Numbers look good though on the ati:
    Code:
    Difficulty: 873388193410
    [27.27 Mkey/s][total 4630511616][Prob 0.5%][50% in 6.1h]


    (for reference, on an i7 @4.2ghz, vanitygen64 does about 1Mkey/s case insensitive)

  • Lethos
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    September 27, 2012, 02:19:29 PM
     #728
    Amazing program.
    Still playing with it, did a few which only took a few minutes.

    Trying longer ones, but it seems to be be measured in many years by probability of success so I think it only find it if extremely lucky.
    So I don't think I'll be seeing 1BattLeLords (First name of a game I'm developing) any time soon.
    None the less very cool, my little laptop even happily manages 5 Mkeys/s which surprised me.

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  • stevegee58
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    September 27, 2012, 02:43:22 PM
     #729
    Bitcoin addresses are Base 58 so every time you add a digit to the vanity part it multiplies the number of search permutations by 58.
    You are in a maze of twisty little passages, all alike.

  • Lethos
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    September 27, 2012, 03:08:07 PM
     #730
    Quote from: stevegee58 on September 27, 2012, 02:43:22 PM
    Bitcoin addresses are Base 58 so every time you add a digit to the vanity part it multiplies the number of search permutations by 58.

    I noticed Smiley I know I was just being over optimistic in thinking I could get a long one.
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  • TTBit
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    September 29, 2012, 06:24:05 PM
     #731
    Where can I get keyconv for windows? I can't find it.

    sorry, nevermind. Didn't see it in .21. Got it from .20.
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    October 02, 2012, 05:33:11 PM
     #732
    Quote from: tgbtc on September 25, 2012, 10:14:09 PM
    Can't get the ocl version to work...

    on 7970:
    (seems it is finding matches, but disregarding due to mismatch?
    Code:
    CPU hash: 6707a76e848f5e9368c2d9d9ec6d60880df44891
    GPU hash: 020b0bda39a9bbb2eeddd194a8be20934835dff6
    Found delta: 94027 Start delta: 1

    I had the same thing happen with my 7750.  IIRC, I got it working by passing the -S (safe mode) option to oclvanitygen.
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    October 03, 2012, 05:17:03 AM
     #733
    Mr Vanitygen author, can you make a version that spits out compressed private keys, or the keys that begin with letters instead of 5?
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  • flatfly
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    October 03, 2012, 08:00:18 PM
     #734
    Which gets me wondering, does Vanitygen search the entire keyspace? (*)
    If not, what proportion of the entire keyspace does it search?

    (*) What about addresses associated with compressed keys?
    Did you know? Counterparty is still alive! It's the Bitcoin-native DEX with a fascinating history, running with zero downtime since 2014.

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    October 03, 2012, 08:58:14 PM
     #735
    Quote from: flatfly on October 03, 2012, 08:00:18 PM
    Which gets me wondering, does Vanitygen search the entire keyspace? (*)
    If not, what proportion of the entire keyspace does it search?

    (*) What about addresses associated with compressed keys?

    What I understand it does:

    1) Generate a random private key (or increment from the previous random private key)
    2) Calculate the corresponding public key from the private key
    3) Calculate the corresponding bitcoin address of the public key
    4) Compare, if there is a match output else go back to step 1)

    Does that help to answer your question or not?
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    October 04, 2012, 09:03:33 PM
     #736
    Quote from: flatfly on October 03, 2012, 08:00:18 PM
    Which gets me wondering, does Vanitygen search the entire keyspace? (*)
    If not, what proportion of the entire keyspace does it search?

    (*) What about addresses associated with compressed keys?

    The starting point of a phrase search is random, it gets a private key from the openssl rand ecdsa library and starts searching from there, simply incrementing the key. After searching many addresses for a phrase match, it will again get another random private key. The keys searched and returned with a found vanity phrase in the corresponding Bitcoin address can be from anywhere in the range of valid keys, but certainly it cannot "search the entire keyspace", as that would take somewhere just north of the age of the universe.

  • flatfly
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    October 04, 2012, 10:01:17 PM
     #737
    Quote from: deepceleron on October 04, 2012, 09:03:33 PM
    Quote from: flatfly on October 03, 2012, 08:00:18 PM
    Which gets me wondering, does Vanitygen search the entire keyspace? (*)
    If not, what proportion of the entire keyspace does it search?

    (*) What about addresses associated with compressed keys?

    The starting point of a phrase search is random, it gets a private key from the openssl rand ecdsa library and starts searching from there, simply incrementing the key. After searching many addresses for a phrase match, it will again get another random private key. The keys searched and returned with a found vanity phrase in the corresponding Bitcoin address can be from anywhere in the range of valid keys, but certainly it cannot "search the entire keyspace", as that would take somewhere just north of the age of the universe.

    Hmm perhaps my question wasn't very clear. I'm aware of what you said, what I meant to ask is, does it search within the full (2^256) range of possible private keys or a subset of it. I would have checked the source myself but my C/C++ is a little too rusty...
    Did you know? Counterparty is still alive! It's the Bitcoin-native DEX with a fascinating history, running with zero downtime since 2014.

  • stevegee58
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    October 04, 2012, 11:31:56 PM
     #738
    Quote from: flatfly on October 04, 2012, 10:01:17 PM

    Hmm perhaps my question wasn't very clear. I'm aware of what you said, what I meant to ask is, does it search within the full (2^256) range of possible private keys or a subset of it. I would have checked the source myself but my C/C++ is a little too rusty...

    It picks random starting points within the 256 bit private key space and increments from there.  So yes it considers the entire 256 bit space.
    You are in a maze of twisty little passages, all alike.

  • flatfly
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    October 05, 2012, 07:04:28 AM
     #739
    Quote from: stevegee58 on October 04, 2012, 11:31:56 PM
    Quote from: flatfly on October 04, 2012, 10:01:17 PM

    Hmm perhaps my question wasn't very clear. I'm aware of what you said, what I meant to ask is, does it search within the full (2^256) range of possible private keys or a subset of it. I would have checked the source myself but my C/C++ is a little too rusty...

    It picks random starting points within the 256 bit private key space and increments from there.  So yes it considers the entire 256 bit space.

    Sorry to insist, but are you sure? How do compressed private keys (introduced in bitcoind/bitcoin-qt 0.6.0) fit in there? From what I've been able to read, vanitygen doesn't support them and they are actually separate from noncompressed keys (ie, can't be expressed as normal uncompressed base58 keys) - so what proportion of the 2^256 search range do they represent? Or am I totally misunderstanding compressed keys?
    Did you know? Counterparty is still alive! It's the Bitcoin-native DEX with a fascinating history, running with zero downtime since 2014.

  • stevegee58
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    October 05, 2012, 10:18:57 AM
     #740
    Well then I guess I have no idea.  I'm a C++ guy in my day job but I haven't looked into the fine details of the BTC algos.

    OP hasn't posted for over a month so I'm not sure he's around anymore.
    You are in a maze of twisty little passages, all alike.
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