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Author Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22]  (Read 1080722 times)
aarons6
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October 06, 2017, 06:40:55 PM
 #3361

im guessing the answer is yes, but can i generate a bitcoin address and use it for bcc?
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LoyceV
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October 06, 2017, 07:00:37 PM
 #3362

im guessing the answer is yes, but can i generate a bitcoin address and use it for bcc?
If by BCC you mean Bitcoin Cash, then yes, you can.
All vanity addresses with a balance at Fork time now also hold Bitcoin Cash.

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October 08, 2017, 10:40:04 AM
 #3363

I made a new rack with cards amd Radeon rx 560 4 GB. One for 8 cards, 64 RAM, 8 cores, 16 streams. The second one with the same card. Purely for tests.
New clean OS. Kubuntu 17.04. Lates amd drivers for linux.
But there is still a moment when the program hangs on one of the cards. The moment of attack is from 40 minutes to several days.
But if with nvidia you could leave the application or kill it forcibly. In this case, not ctrl-C, not kill -9 does not help. Only reboot the entire operating system.
How to fix this?



Already treads is blocked at one card.
Code:
./oclvanitygen -D 0:0 -D 0:1 -D 0:2 -D 0:3 -D 0:4 -D 0:5 -D 0:6 -D 0:7 -k -o file_out.txt -P XXXX...XXXXXX -f paterns.txt
./oclvanitygen: /usr/local/cuda-8.0/targets/x86_64-linux/lib/libOpenCL.so.1: no version information available (required by ./oclvanitygen)
Next match difficulty: 477568023166 (7 prefixes)
[242.24 Mkey/s][total 8492417024][Prob 1.8%][50% in 22.2min]                   {MYENTER}
[236.46 Mkey/s][total 90308608000][Prob 17.2%][50% in 17.0min]                 {MYENTER}
[229.26 Mkey/s][total 641593245696][Prob 73.9%][75% in 1.5min]                 {MYENTER}
[228.39 Mkey/s][total 731302068224][Prob 78.4%][80% in 2.7min]                 {MYENTER}
[235.72 Mkey/s][total 1015273226240][Prob 88.1%][90% in 6.0min]                {MYENTER}
Pattern: 1XxxXx                                                             
Address: 1Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
PrivkeyPart: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Pattern: 1XxxXxx                                                               
Address: 1Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
PrivkeyPart: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Pattern: 1XxxXx                                                               
Address: 1Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
PrivkeyPart: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[233.84 Mkey/s][total 2077970399232][Prob 22.1%][50% in 15.1min][Found 3]                {MYENTER}
{MYENTER}
{MYENTER}

Code:
~/vol/files$ nvidia-smi
Sun Aug 27 19:14:11 2017       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 375.66                 Driver Version: 375.66                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  Tesla K80           On   | 0000:00:17.0     Off |                    0 |
| N/A   70C    P0    79W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1  Tesla K80           On   | 0000:00:18.0     Off |                    0 |
| N/A   55C    P0    84W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   2  Tesla K80           On   | 0000:00:19.0     Off |                    0 |
| N/A   77C    P0    84W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   3  Tesla K80           On   | 0000:00:1A.0     Off |                    0 |
| N/A   61C    P0    87W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   4  Tesla K80           On   | 0000:00:1B.0     Off |                    0 |
| N/A   75C    P0    82W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   5  Tesla K80           On   | 0000:00:1C.0     Off |                    0 |
| N/A   60C    P0    95W / 149W |   1734MiB / 11439MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+
|   6  Tesla K80           On   | 0000:00:1D.0     Off |                    0 |
| N/A   69C    P0    74W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   7  Tesla K80           On   | 0000:00:1E.0     Off |                    0 |
| N/A   58C    P0    85W / 149W |   1734MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID  Type  Process name                               Usage      |
|=============================================================================|
|    0     62887    C   ./oclvanitygen                                1730MiB |
|    1     62887    C   ./oclvanitygen                                1730MiB |
|    2     62887    C   ./oclvanitygen                                1730MiB |
|    3     62887    C   ./oclvanitygen                                1730MiB |
|    4     62887    C   ./oclvanitygen                                1730MiB |
|    5     62887    C   ./oclvanitygen                                1730MiB |
|    6     62887    C   ./oclvanitygen                                1730MiB |
|    7     62887    C   ./oclvanitygen                                1730MiB |
+-----------------------------------------------------------------------------+

Code:
top - 19:22:55 up 10 days,  4:24,  3 users,  load average: 1.00, 1.61, 4.74
Tasks: 361 total,   1 running, 360 sleeping,   0 stopped,   0 zombie
%Cpu0  :   0.0/0.0     0[                                                                                                    ]
%Cpu1  :   0.0/0.0     0[                                                                                                    ]
%Cpu2  :   0.0/0.0     0[                                                                                                    ]
%Cpu3  :   0.0/0.0     0[                                                                                                    ]
%Cpu4  :   0.0/0.0     0[                                                                                                    ]
%Cpu5  :   0.0/0.0     0[                                                                                                    ]
%Cpu6  :   0.0/0.0     0[                                                                                                    ]
%Cpu7  :   0.0/0.0     0[                                                                                                    ]
%Cpu8  :   0.0/0.0     0[                                                                                                    ]
%Cpu9  :   0.0/0.0     0[                                                                                                    ]
%Cpu10 :   0.0/0.0     0[                                                                                                    ]
%Cpu11 :   0.0/0.0     0[                                                                                                    ]
%Cpu12 :   0.0/0.0     0[                                                                                                    ]
%Cpu13 :   0.0/0.0     0[                                                                                                    ]
%Cpu14 :   0.2/0.0     0[                                                                                                    ]
%Cpu15 :   0.0/0.0     0[                                                                                                    ]
%Cpu16 :   0.0/0.0     0[                                                                                                    ]
%Cpu17 :   0.0/0.0     0[                                                                                                    ]
%Cpu18 :   0.0/0.0     0[                                                                                                    ]
%Cpu19 :  79.8/20.2  100[||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||]
%Cpu20 :   0.0/0.0     0[                                                                                                    ]
%Cpu21 :   0.0/0.0     0[                                                                                                    ]
%Cpu22 :   0.0/0.0     0[                                                                                                    ]
%Cpu23 :   0.0/0.0     0[                                                                                                    ]
%Cpu24 :   0.0/0.0     0[                                                                                                    ]
%Cpu25 :   0.0/0.0     0[                                                                                                    ]
%Cpu26 :   0.0/0.0     0[                                                                                                    ]
%Cpu27 :   0.0/0.0     0[                                                                                                    ]
%Cpu28 :   0.0/0.0     0[                                                                                                    ]
%Cpu29 :   0.0/0.0     0[                                                                                                    ]
%Cpu30 :   0.0/0.0     0[                                                                                                    ]
%Cpu31 :   0.0/0.0     0[                                                                                                    ]
GiB Mem :  0.9/480.280  [                                                                                                    ]
GiB Swap:  0.0/0.000    [                                                                                                    ]

   PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                                                                                                                                   
 62887 ubuntu    20   0  0.572t 738.8m 588.7m S 100.0  0.2   1577:53 oclvanitygen                                                                                                                                                                                             
  1465 root      20   0 1367.2m  35.5m  13.5m S   0.0  0.0   0:44.49 snapd                                                                                                                                                                                                     
   610 root      20   0   50.4m  23.7m  23.3m S   0.0  0.0   0:03.31 systemd-journal

How this fix?




Code:
[quote author=mrxtraf link=topic=25804.msg20978350#msg20978350 date=1503040763]
Goes (cycling) on one of the video cards. Nvidia tesla M2050, M2075, M2090, GRID K520.

system kubuntu desctop 16.04. other computer ubuntu server 16.04
run
vanitygen$ ./oclvanitygen -D 0:0 -D 0:1 -o ../files/founds/vanity_3.txt -k -f ../files/vanity.txt
Next match difficulty: 108786463956186 (40 prefixes)
No protocol specified
[32.98 Mkey/s][total 97272201216][Prob 0.1%][50% in 26.4d]

After several hours of work. Maybe an hour, maybe a day. The output of the current state stops.
[32.98 Mkey/s][total 97272201216][Prob 0.1%][50% in 26.4d]

But in the processes the task continues to be executed. It takes up part of the CPU time. And the calculation continues only on one of the cards. I tried to wait about a day, but nothing has changed.
After "^ C" it will stop after 20-30 seconds.

Run on other computer
$ ./oclvanitygen -D 0:0 -D 0:1 -D 0:2 -D 0:3 -o ../../files/vanity/found_vanity.txt -k -f ../../files/vanity/vanity.txt
./oclvanitygen: /usr/local/cuda-8.0/targets/x86_64-linux/lib/libOpenCL.so.1: no version information available (required by ./oclvanitygen)
Next match difficulty: 108786463956186 (40 prefixes)
[77.83 Mkey/s][total 225586446336][Prob 0.2%][50% in 11.2d] {MYENTER}
[77.28 Mkey/s][total 305563435008][Prob 0.3%][50% in 11.2d] {MYENTER}
[77.69 Mkey/s][total 411108900864][Prob 0.4%][50% in 11.2d] {MYENTER}
[74.88 Mkey/s][total 728701599744][Prob 0.7%][50% in 11.5d] {MYENTER}
[76.96 Mkey/s][total 780316704768][Prob 0.7%][50% in 11.2d] {MYENTER}
[79.60 Mkey/s][total 785828020224][Prob 0.7%][50% in 10.9d] {MYENTER}
{MYENTER}
{MYENTER}
{MYENTER}^C

One vidoecard is occupied by calculations for 100 percent, the other 0 percent. In this case, the memory is busy on all selected.
`
nvidia-smi
Mon Aug 14 08:50:24 2017
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 375.82 Driver Version: 375.82 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 Tesla M2075 Off | 0000:01:00.0 Off | 0 |
| N/A N/A P0 78W / N/A | 1854MiB / 5301MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 1 Tesla M2090 Off | 0000:02:00.0 Off | 0 |
| N/A N/A P0 83W / N/A | 1080MiB / 5301MiB | 100% Default |
+-------------------------------+----------------------+----------------------+
| 2 Tesla M2050 Off | 0000:03:00.0 Off | 0 |
| N/A N/A P12 N/A / N/A | 0MiB / 2622MiB | 0% Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 19499 C ./oclvanitygen 1842MiB |
| 1 19499 C ./oclvanitygen 1080MiB |
+-----------------------------------------------------------------------------+

vanitygen$ ldd oclvanitygen
linux-vdso.so.1 => (0x00007ffc5b3e2000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f4be2573000)
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007f4be212f000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f4be1e26000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f4be1c09000)
libOpenCL.so.1 => /opt/amdgpu-pro/lib/x86_64-linux-gnu/libOpenCL.so.1 (0x00007f4be1a02000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4be1638000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f4be1434000)
/lib64/ld-linux-x86-64.so.2 (0x00007f4be27e3000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f4be122c000)
`

Computer #2
`
nvidia-smi
Mon Aug 14 05:08:26 2017
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 375.66 Driver Version: 375.66 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GRID K520 Off | 0000:00:03.0 Off | N/A |
| N/A 36C P8 18W / 125W | 1067MiB / 4036MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 1 GRID K520 Off | 0000:00:04.0 Off | N/A |
| N/A 36C P8 17W / 125W | 1067MiB / 4036MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 2 GRID K520 Off | 0000:00:05.0 Off | N/A |
| N/A 54C P0 49W / 125W | 1067MiB / 4036MiB | 100% Default |
+-------------------------------+----------------------+----------------------+
| 3 GRID K520 Off | 0000:00:06.0 Off | N/A |
| N/A 32C P8 17W / 125W | 1067MiB / 4036MiB | 0% Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 2733 C ./oclvanitygen 1065MiB |
| 1 2733 C ./oclvanitygen 1065MiB |
| 2 2733 C ./oclvanitygen 1065MiB |
| 3 2733 C ./oclvanitygen 1065MiB |
+-----------------------------------------------------------------------------+

$ ldd oclvanitygen
./oclvanitygen: /usr/local/cuda-8.0/targets/x86_64-linux/lib/libOpenCL.so.1: no version information available (required by ./oclvanitygen)
linux-vdso.so.1 => (0x00007fffdeb47000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fcb5fa53000)
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007fcb5f60f000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fcb5f305000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fcb5f0e8000)
libOpenCL.so.1 => /usr/local/cuda-8.0/targets/x86_64-linux/lib/libOpenCL.so.1 (0x00007fcb5eee2000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fcb5eb17000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fcb5e913000)
/lib64/ld-linux-x86-64.so.2 (0x000055683af0e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fcb5e70b000)

In vanaitygen-pluse also present this bug.

How get dump on worked programm on ubuntu konsole?
[/quote]
AGD
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October 08, 2017, 11:43:58 AM
 #3364

CPU load looks pretty high. If it works on 100% most of the time I would expect failures and system shutdown due to high CPU temperature.

My ignore list here: https://bitcointalk.org/index.php?topic=1652334.0 +++ GPG Public key FFBD756C24B54962E6A772EA1C680D74DB714D40 +++ http://pgp.mit.edu/pks/lookup?op=get&search=0x1C680D74DB714D40
arulbero
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October 11, 2017, 09:18:03 AM
 #3365

A couple of question about https://vanitypool.appspot.com/

1) How can I know if I have to use compressed or uncompressed keys for the search? For example, in this case:

https://vanitypool.appspot.com/availableWork   -->  11111111

can I use only compressed keys?


2) split -key generator feature: if I made a my own program that computes not only P + k*G (where P is the public key provided to start from) but  -(P + k*G) too, can I claim the reward?

If 's' is the secret private key of P (P=s*G), then the new private key would be :  -(s*G + k*G) =>  -(s+k) = n - (s+k)

where

n = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141

is the group order of the curve.
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October 11, 2017, 02:01:39 PM
 #3366

WOW! 169 pages of technical details.. Sorry guys but i'm not much familiar with so deep technical things, but i know enough to generate address with vanity.

Can i ask only about one thing - is it safe or not? I mean do the private key is safe and only i can see it or...?

LoyceV
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October 11, 2017, 05:06:50 PM
 #3367

Can i ask only about one thing - is it safe or not? I mean do the private key is safe and only i can see it or...?
Vanitygen is as safe as your own computer is. If your computer is compromised, so is your key.
To go full paranoid, you can generate a random Bitcoin address offline, from a Linux LIVE CD, and use split key to generate a vanity address. Full instructions:
Step 1: Goto https://www.bitaddress.org/ move your mouse/type in the field until it shows 100% and wait a second.
Step 1.5: Download the page, verify the download and run it locally*.
Step 2: Click Vanity Wallet click the Generate button next to Generate your "Step1 Key Pair"
Step 3: Save the private key somewhere safe. You will need it later when I generated your partial private key.
Step 4: Once you create your partial private key on your online computer, go back to bitaddress.org and click on Vanity Wallet.
Step 5: Go to step 2 Calculate your vanity wallet. In the first field put the private key you saved and in the second field put the partial private key I gave you. Click Add and Calculate Vanity Wallet
Step 6: Copy the Vanity Private Key (WIF) and import it into your preferred wallet.
Credits to shorena for most of these instructions!
If something doesn't work as expected, have a look at this example.
(my own quote slightly edited to fit this post)

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October 15, 2017, 07:04:39 PM
 #3368

Hi all!

I am trying to find rather long prefix (more than 8 symbols). I calculated estimated time as about 2 month with 8x1080.

But there is problem: oclvanitygen hangs after some working time (on Linux or Windows host). I had to write script which kills hanged process and restarts it.

So, there is no continuous running of oclvanytigen, and I am not sure that now I will find my prefix during expected 2 month.

Could someone tell me if there is mathematic difference between next two actions:
1) I run continuously without stopping oclvanitygen until it find my prefix (max 60 days, if I totally unlucky)
2) I run oclvanitygen for 1 hour, then kill process and start again - in cycle same 60 days.


Thank you!
LoyceV
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October 15, 2017, 08:23:45 PM
 #3369

Could someone tell me if there is mathematic difference between next two actions:
1) I run continuously without stopping oclvanitygen until it find my prefix (max 60 days, if I totally unlucky)
2) I run oclvanitygen for 1 hour, then kill process and start again - in cycle same 60 days.
There is no difference. There's also no "maximum" of 60 days, there's only the probability (say 50% chance to find it in 60 days).
For long searches like that, I use these options:
Code:
-i -k
This gives you at least some output (case insensitive) once in a while.

If you're running searches for months, you may want to make a longer list of words to search for. By making a list with prefixes you may find more cool addresses in the same amount of time.

RentGPU
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October 16, 2017, 12:08:43 AM
 #3370

How can i change the random number generation in the code , i want to move step by step +1 from a certain base point not +random number , is it something easy to do?!
aarons6
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October 16, 2017, 04:35:24 AM
 #3371

How can i change the random number generation in the code , i want to move step by step +1 from a certain base point not +random number , is it something easy to do?!

you could probably change the source code to do this, but realistically you would probably never find a match this way as you would systematically be hitting non matches forever instead of random checking for a match..

arulbero
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October 16, 2017, 05:16:00 PM
 #3372

How can i change the random number generation in the code , i want to move step by step +1 from a certain base point not +random number , is it something easy to do?!

you could probably change the source code to do this, but realistically you would probably never find a match this way as you would systematically be hitting non matches forever instead of random checking for a match..


I think that there is no difference, same odds.

There are software that work "step by step +1" but are not "vanitygen". Search for "brainflayer". The "+1" method is the faster way to generate public keys (and then addresses).
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October 16, 2017, 07:44:02 PM
 #3373

There is no difference. There's also no "maximum" of 60 days, there's only the probability (say 50% chance to find it in 60 days).
...
By making a list with prefixes you may find more cool addresses in the same amount of time.
Thank you for your answer, but I still have questions:
1) Why there is no difference? If you start every hour from some random seed, there is probability that you could start from the same wrong seed which you already checked earlier.
2) Why there is no "maximum"? What is "difficulty" mean then? I thought that "difficulty" is all possibly variants, and if I check every one of them I would find my prefix with 100% probability. And difference is only how soon I would find it - with very bad luck my prefix could be just last.
So, my statement is:
Maximum Time for prefix finding (with guaranteed result) = Difficulty / Speed
For example, with speed 1000000 keys/second I'll find prefix with 264104224 difficulty with 100% probability for maximum of 264104224/1000000=264 seconds
3) Thank you for wise advice, but I only need 1 exact prefix :(
LoyceV
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October 16, 2017, 07:51:52 PM
 #3374

How can i change the random number generation in the code , i want to move step by step +1 from a certain base point not +random number , is it something easy to do?!
May I ask why you'd want this? You're basically taking out the randomness, making it less secure.
I do the opposite: add an extra random-file, just in case the standard random isn't random enough.
Code:
-s <file>     Seed random number generator from <file>

1) Why there is no difference? If you start every hour from some random seed, there is probability that you could start from the same wrong seed which you already checked earlier.
Vanitygen uses a different random each time you start it. Chances of using the same seed are small enough to neglect.

Quote
2) Why there is no "maximum"? What is "difficulty" mean then?
Imagine throwing a dice: you want to roll a 6. With 6 possible outcomes, I'd say the difficulty is 6. The more times you try, the more likely it becomes to roll a 6.
But, there is no "maximum" number of tries after you're 100% sure you've hit a 6.
Vanitygen has the same probability as this analogy.

Quote
So, my statement is:
Maximum Time for prefix finding (with guaranteed result) = Difficulty / Speed
For example, with speed 1000000 keys/second I'll find prefix with 264104224 difficulty with 100% probability for maximum of 264104224/1000000=264 seconds
You're wrong here. Suppose you're really unlucky, and rolled your dice 263 times. The next roll still has a 1 in 6 chance of being a six, there is no guarantee.

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October 17, 2017, 06:44:52 AM
 #3375

...The more times you try, the more likely it becomes to roll a 6.

Dice have no memory. The chance to roll a 6 is the same at every throw. So it is NOT more likely to throw a 6 the more times you try.

My ignore list here: https://bitcointalk.org/index.php?topic=1652334.0 +++ GPG Public key FFBD756C24B54962E6A772EA1C680D74DB714D40 +++ http://pgp.mit.edu/pks/lookup?op=get&search=0x1C680D74DB714D40
LoyceV
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October 17, 2017, 07:46:45 AM
 #3376

...The more times you try, the more likely it becomes to roll a 6.
Dice have no memory. The chance to roll a 6 is the same at every throw. So it is NOT more likely to throw a 6 the more times you try.
I think you misunderstood me:
Code:
1 try: 16.67% chance
2 tries: 30.56% chance
3 tries: 42.13% chance
4 tries: 51.77% chance
5 tries: 59.81% chance
6 tries: 66.51% chance
7 tries: 72.09% chance
8 tries: 76.74% chance
9 tries: 80.62% chance
10 tries: 83.85% chance
11 tries: 86.54% chance
12 tries: 88.78% chance
13 tries: 90.65% chance
14 tries: 92.21% chance
15 tries: 93.51% chance
16 tries: 94.59% chance
17 tries: 95.49% chance
18 tries: 96.24% chance
19 tries: 96.87% chance
20 tries: 97.39% chance
21 tries: 97.83% chance
22 tries: 98.19% chance
23 tries: 98.49% chance
24 tries: 98.74% chance
25 tries: 98.95% chance
26 tries: 99.13% chance
27 tries: 99.27% chance
28 tries: 99.39% chance
29 tries: 99.49% chance
30 tries: 99.58% chance
31 tries: 99.65% chance
32 tries: 99.71% chance
33 tries: 99.76% chance
34 tries: 99.80% chance

RentGPU
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October 17, 2017, 07:28:20 PM
 #3377

How can i change the random number generation in the code , i want to move step by step +1 from a certain base point not +random number , is it something easy to do?!
May I ask why you'd want this? You're basically taking out the randomness, making it less secure.
I do the opposite: add an extra random-file, just in case the standard random isn't random enough.
Code:
-s <file>     Seed random number generator from <file>
I need this to make a secure check on an address i already own not to generate a new one , i am trying to connect all my addresses with one private key so that i can remember one key and open all my addresses in a certain sequance i have made Smiley, if you don't understand what i am saying then just forward me to something like i said , and you will do me a favour thanks.
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October 18, 2017, 07:11:31 AM
 #3378

How can i change the random number generation in the code , i want to move step by step +1 from a certain base point not +random number , is it something easy to do?!
May I ask why you'd want this? You're basically taking out the randomness, making it less secure.
I do the opposite: add an extra random-file, just in case the standard random isn't random enough.
Code:
-s <file>     Seed random number generator from <file>
I need this to make a secure check on an address i already own not to generate a new one , i am trying to connect all my addresses with one private key so that i can remember one key and open all my addresses in a certain sequance i have made Smiley, if you don't understand what i am saying then just forward me to something like i said , and you will do me a favour thanks.
What you are looking for is this: https://en.bitcoin.it/wiki/Deterministic_wallet

[GPG Public Key]  [Devcoin Builds]  [BBQCoin Builds]  [Multichain Blockexplorer]  [Multichain Blockexplorer - PoS Coins]  [Ufasoft Miner Linux Builds]
BTC/DVC/TRC/FRC: 1K1773RbXRZVRQSSXe9N6N2MUFERvrdu6y ANC/XPM AK1773RTmRKtvbKBCrUu95UQg5iegrqyeA NMC: NK1773Rzv8b4ugmCgX789PbjewA9fL9Dy1 LTC: LKi773RBuPepQH8E6Zb1ponoCvgbU7hHmd EMC: EK1773RxUes1HX1YAGMZ1xVYBBRUCqfDoF BQC: bK1773R1APJz4yTgRkmdKQhjhiMyQpJgfN
arulbero
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October 20, 2017, 08:34:43 PM
 #3379

A couple of question about https://vanitypool.appspot.com/

1) How can I know if I have to use compressed or uncompressed keys for the search? For example, in this case:

https://vanitypool.appspot.com/availableWork   -->  "11111111"
public key: 04C13D9CF2B0E382A4AF29C5E2B97F85C6DD9445F7DCE82CD7207E6FC4716511981B0012C10B39EF1 52257A8407A2965F92F075379D311D5786D9421795B82D01C

can I use only compressed keys?

I found this public key:

Code:
a15f585a9d39a8a091962d11af1e96320fc3543b5201a8c9b12eedf695bad359 3b6621eddf4207bd186c8293c6b497555594b32d2eb9c09ae8f81791a0dfde48

if I add it with the public key
Code:
C13D9CF2B0E382A4AF29C5E2B97F85C6DD9445F7DCE82CD7207E6FC471651198 1B0012C10B39EF152257A8407A2965F92F075379D311D5786D9421795B82D01C

I get this public key

Code:
83f0e53639fbcead931a0d19eb3f3f6684dc75fac68a8c5dbc21cdb8b4ecfb19 d933c437e192b2b6dd27a6b9d09e6470ca220ed27d4bcb05251b1d0e47adad90

in compressed format

Code:
0283f0e53639fbcead931a0d19eb3f3f6684dc75fac68a8c5dbc21cdb8b4ecfb19

that gives this address (only 7 '1'):

Code:
11111113ix5Nw6kgetPaMBCWBdp5TTfX

My question is: if I found a match with the pattern "11111111", would it be valid? Or do I have to use only uncompressed keys?

I don't want to waste time with a fruitless quest.
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October 22, 2017, 10:56:30 AM
 #3380

Nah, you do not have to worry about your BTC getting halved or that it will somehow be reduced to create these other coins.

I think there are a lot of people who are getting this wrong and are totally confused with all the FUD that are being spread.

Your original bitcoins are safe, just keep the private key secret and wait for the fork. After the fork, you will have coins from

the new fork too... You can sell or keep those coins, if you have sole control over your private key. Some people store their

bitcoins in services where these services have control over your private key and they can decide what they want to do with

those forked coins.
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