almightyruler
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September 07, 2019, 01:40:14 AM |
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..Ty for your explanation, I can't pm u back because of messaging limits. So basically there is no way to combine really fast random hex generator to work with the calculation process? So all we can do is randomly get starting points and from there work in increments.
True, according to my knowledge after 1 year of research. In fact, you want a gpu BrainFlayer. Everyone wants it) Ryan refuses to write it because he is a WhiteHat. If successful, it will be slower than sequentially calculating points. ########################## heuristic calculate the hashrate for BrainFlayer cuda/opencl BrainFlayer cpu sse 0,1 Mk/s - 1core i7-6820 8core - 4core real, 4core hyper-threading, so x6 instead x8 0,6 Mk/s - 8core i7-6820 You'd probably need to perform string mangling on the GPU to keep the cores working as much as possible, because the transfer of each and every candidate phrase from CPU/system memory to the GPU could end up being a severe bottleneck. Perhaps a deliberately slower algorithm like warp may work better, since the GPU will spend most of its time calculating rather than transferring to/from the host... but how common are non SHA256 brainwallets? As you state, any passphrase based search (which is essentially a set of random keys) will be slower than a sequential search.
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Telariust
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September 07, 2019, 10:58:04 AM Last edit: September 07, 2019, 11:10:27 AM by Telariust |
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What about pollard-rho versions of this people talk in other threads, but there is no publicly available tool to try it (to my knowledge)? https://bitcointalk.org/index.php?topic=5166284.msg52318676#msg52318676You'd probably need to perform string mangling on the GPU to keep the cores working as much as possible, because the transfer of each and every candidate phrase from CPU/system memory to the GPU could end up being a severe bottleneck. Perhaps a deliberately slower algorithm like warp may work better, since the GPU will spend most of its time calculating rather than transferring to/from the host... but how common are non SHA256 brainwallets? As you state, any passphrase based search (which is essentially a set of random keys) will be slower than a sequential search.
I also thought so for a long time. not really if the size does not exceed 49152 size_t stackSize = 49152; err = cudaDeviceSetLimit(cudaLimitStackSize, stackSize);
..For VanitySearch, having a smaller group size is better (This is a reason why I worked a lot on this DRS62 ModInv implementation). I can double the size of the group (I will definitely do it) but not more. The GPU kernel performs one group per thread and send back hash160 to the CPU. If the group size is too large, memory transfer and allocation become a problem. Divide and rule ![Wink](https://bitcointalk.org/Smileys/default/wink.gif) VanitySearch restarts the kernel about 1000 times per second (!!!), and it works fine. opencl unknow ..and this is one of the main technical reasons why gpu BF do not. cpu BF checks huge dictionaries in a few hours. loading such volumes into gpu is problematic. therefore gpu BF should work using the built-in generator, e.g. brute force seed.
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Serj88
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September 13, 2019, 09:11:45 AM |
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How to prevent brute-forcing private keys?
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Archi606
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September 15, 2019, 02:11:20 PM |
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C:\Users\Mashine-5\source\repos\BitCrack2\x64\Debug>cuBitCrack.exe -i key.txt -o key1.txt [2019-09-15.17:02:27] [Info] Compression: compressed [2019-09-15.17:02:27] [Info] Starting at: 0000000000000000000000000000000000000000000000000000000000000001 [2019-09-15.17:02:27] [Info] Ending at: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140 [2019-09-15.17:02:27] [Info] Counting by: 0000000000000000000000000000000000000000000000000000000000000001 [2019-09-15.17:02:27] [Info] Initializing GeForce GTX 1060 6GB [2019-09-15.17:02:27] [Info] Generating 262,144 starting points (10.0MB) [2019-09-15.17:02:30] [Info] 10.0% [2019-09-15.17:02:32] [Info] 20.0% [2019-09-15.17:02:35] [Info] 30.0% [2019-09-15.17:02:37] [Info] 40.0% [2019-09-15.17:02:39] [Info] 50.0% [2019-09-15.17:02:41] [Info] 60.0% [2019-09-15.17:02:43] [Info] 70.0% [2019-09-15.17:02:46] [Info] 80.0% [2019-09-15.17:02:48] [Info] 90.0% [2019-09-15.17:02:50] [Info] 100.0% [2019-09-15.17:02:50] [Info] Done [2019-09-15.17:02:50] [Info] Loading addresses from 'key.txt' [2019-09-15.17:02:50] [Info] 1 addresses loaded (0.0MB) GeForce GTX 1060 1083 / 6144MB | 1 target 1.25 MKey/s (11,796,480 total) [00:00:07]
Hello!
Why such a low rate? There is a detailed setting, please tell me) Maybe something is installed incorrectly
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thunderclouds
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September 17, 2019, 03:42:14 PM |
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Hi all, im currently getting only around 3 MKey/s using a GTX 1080 8GB, ive seen others getting 300 MKey/s, i have tried the card on two different PC's with a fresh install(win10), yet both give the same rate. This is my config, I have tried to play with the numbers but crash the card if i go too high, could anyone suggest a soloution.
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iparktur
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September 17, 2019, 05:06:45 PM |
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I have a GPU brainflayer, 1 billion hashes /sec on 8 x RX570
You can send me PM if interested [/quote]
bartekjagoda
How to send you PM if you have "closed"?
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RPL_Ryan
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September 19, 2019, 02:26:39 PM |
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Is anyone else having issues running multiple instances? I have a 7 card gpu rig, if initiate 2+ instances I get a computer crash. Windows 10, cl initiate.
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balskiy
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October 03, 2019, 10:25:05 PM |
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Hi, how to use cuBitCrack.exe on multiple gpu?
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iparktur
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October 08, 2019, 08:51:18 AM |
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Probably at I have very weak laptop there is no large difference on speed from change of parameters - t - p (in clBitCrack.exe) The quantity Generating starting points depends on parameters - t - p Than meanings of parameters - t - p by that more will be more generated Generating starting points I think, probably, than will be more generated Generating starting points - the better? Who knows precisely - explain.
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balskiy
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October 08, 2019, 10:52:33 AM |
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Probably at I have very weak laptop there is no large difference on speed from change of parameters - t - p (in clBitCrack.exe) The quantity Generating starting points depends on parameters - t - p Than meanings of parameters - t - p by that more will be more generated Generating starting points I think, probably, than will be more generated Generating starting points - the better? Who knows precisely - explain.
Hi, read the link https://bitcointalk.org/index.php?topic=5166284.msg52255756#msg52255756
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bartekjagoda
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October 08, 2019, 04:57:00 PM |
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I have a GPU brainflayer, 1 billion hashes /sec on 8 x RX570
You can send me PM if interested
bartekjagoda How to send you PM if you have "closed"? [/quote] I have opened my box for newbies I usually get 160-220Mkeys per second depending on the size of addresses to check. Has been doing 100lists
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Ich liebe Bitcoin
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iparktur
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October 08, 2019, 07:26:27 PM |
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Probably at I have very weak laptop there is no large difference on speed from change of parameters - t - p (in clBitCrack.exe) The quantity Generating starting points depends on parameters - t - p Than meanings of parameters - t - p by that more will be more generated Generating starting points I think, probably, than will be more generated Generating starting points - the better? Who knows precisely - explain.
Hi, read the link https://bitcointalk.org/index.php?topic=5166284.msg52255756#msg52255756I so have understood, that cuBitCrack and CUDA for processors Intel witch a video cards NVIDA Mine laptop - AMD A6-3420M APU with AMD Radeon HD 6520G Therefore I use OpenCL and clBitCrack Unless cuBitCrack and CUDA will work with such configuration?
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balskiy
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October 08, 2019, 08:07:05 PM |
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Probably at I have very weak laptop there is no large difference on speed from change of parameters - t - p (in clBitCrack.exe) The quantity Generating starting points depends on parameters - t - p Than meanings of parameters - t - p by that more will be more generated Generating starting points I think, probably, than will be more generated Generating starting points - the better? Who knows precisely - explain.
Hi, read the link https://bitcointalk.org/index.php?topic=5166284.msg52255756#msg52255756I so have understood, that cuBitCrack and CUDA for processors Intel witch a video cards NVIDA Mine laptop - AMD A6-3420M APU with AMD Radeon HD 6520G Therefore I use OpenCL and clBitCrack Unless cuBitCrack and CUDA will work with such configuration? You need clBitCrack, but the setup principle is the same as for cuBitCrack.
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iparktur
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October 08, 2019, 08:09:38 PM |
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I have a GPU brainflayer, 1 billion hashes /sec on 8 x RX570
You can send me PM if interested
bartekjagoda How to send you PM if you have "closed"? I have opened my box for newbies I usually get 160-220Mkeys per second depending on the size of addresses to check. Has been doing 100lists [/quote] I send PM to you
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bartekjagoda
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October 09, 2019, 05:21:18 PM |
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Hi all, im currently getting only around 3 MKey/s using a GTX 1080 8GB, ive seen others getting 300 MKey/s, i have tried the card on two different PC's with a fresh install(win10), yet both give the same rate. This is my config, I have tried to play with the numbers but crash the card if i go too high, could anyone suggest a soloution. Your CUDA drivers might be wrong, which version do you use?
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Ich liebe Bitcoin
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almightyruler
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October 11, 2019, 07:35:53 AM |
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Hey guys, newbie here glad I found this thread. I'm not a programmer or know how to brute force these bitcoin wallets.
Iv'e been working on a new way to store your private keys privately and securely out in the open. Essentially if somebody can have access to your private key, They will be unable to unlock the wallet.
In this image I put a private key that is missing 13 characters. If you can guess the password, you can have access to decrypting the characters needed to unlock the private key.
If anyone can crack this private key, they can have access to some Bitcoin I sent to it.
I'm trying to understand why you would want to store a private key "out in the open"? With 13 characters to brute force, the key is still going to be 'difficult' to break, but certainly a lot easier than if the entire key was kept private. Since the password appears to map letters and numbers to the missing base58 parts of the key, based on statistical analysis of language, the search space could be narrowed down considerably. Can you reveal the address and sign a message to prove this is a real challenge?
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almightyruler
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October 11, 2019, 08:34:19 AM |
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Sure, the Bitcion Address is 1C2SvZUDaSr6zzTTZr7vNeCo5jbz1bwiGe
I will send 0.00007185 BTC in the next couple of minutes to prove I signed the transaction.
Yeah, but again: why? Is this simply a fun challenge, or are you planning to use (and promote) this method of storing private keys? As has been proven in the puzzle challenge thread, brute forcing ~76 bits (in this case) of key is not impossible.
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nc50lc
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October 11, 2019, 08:38:12 AM |
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In this image I put a private key that is missing 13 characters. If you can guess the password, you can have access to decrypting the characters needed to unlock the private key.
IDK what you're making but it's so wrong in so many levels. First, it's missing 14 characters ( not 13) ![Undecided](https://bitcointalk.org/Smileys/default/undecided.gif) Next, looks like the private key is in compressed WIF format which should be in base58 encoding, means that there shouldn't be any zero, capital "o", lower-case "L" and capital "i" in the list; but there's an "O" and a "0" in the table. Lastly, why all caps? Is your 1C2SvZUDaSr6zzTTZr7vNeCo5jbz1bwiGe address' WIF private key all-caps?
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Breadyfreddy
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October 11, 2019, 08:41:00 AM |
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Im planning on implementing this in my notebook that is launching this year. A notebook to store private keys. Shieldfolio.com
The goal is to help users store private keys privately in case somebody stumbles upon these private keys.
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almightyruler
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October 11, 2019, 09:05:14 AM |
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Im planning on implementing this in my notebook that is launching this year. A notebook to store private keys. Shieldfolio.com
The goal is to help users store private keys privately in case somebody stumbles upon these private keys.
Make a secret less secret by default just in case someone stumbles upon that secret? How does revealing part of a private key make it more private?
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