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Showing 14 of 14 results by noaj24
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 14/11/2018, 14:31:44 UTC
@arulbero

If you have the public key and the search space is 2^160 how fast can you find the private key?
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Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 12/11/2018, 16:36:08 UTC
@arulbero
I have an idea about #58. Can I message you the details?
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Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 12/11/2018, 06:36:40 UTC

Quote

About 16.7 MKeys/s, 1 GKeys/min.
 
Let's say 2^24 Keys/s.
To compute 2 lists of 2^28 keys, it takes 2 * 2^4 seconds, about 30 seconds. That is the time it took to retrieve the key #57.
Have you tried to search a key in space of 10 quadrillion? How many hours you think it can finish that large space?
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Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 11/11/2018, 20:29:24 UTC
@arulbero

If the public key is revealed it is still safe from bruteforce if the attacker don't know the range of bits to search for?
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 11/11/2018, 13:25:26 UTC
@arulbero thanks mate!
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 11/11/2018, 12:58:49 UTC
Quote
I search only the last 56 bit (between 2^56 and 2^57 - 1)

Btw why -1?
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 11/11/2018, 11:13:39 UTC
Quote

About 16.7 MKeys/s, 1 GKeys/min.
 
Let's say 2^24 Keys/s.
To compute 2 lists of 2^28 keys, it takes 2 * 2^4 seconds, about 30 seconds. That is the time it took to retrieve the key #57.

Wow faster than libsecp256k1
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 11/11/2018, 10:52:18 UTC
Quote

My code instead uses a different library written by myself for the LBC project.

In your code how many keys can you generate per minute?
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 10/11/2018, 14:28:55 UTC
Quote
No, I can't.


Information:

https://sefiks.com/2018/02/28/attacking-elliptic-curve-discrete-logarithm-problem/
http://andrea.corbellini.name/2015/06/08/elliptic-curve-cryptography-breaking-security-and-a-comparison-with-rsa/


Code (not mine, slower than mine but good, with the first 51 public keys of the puzzle transaction) :

https://gist.github.com/jhoenicke/2e39b3c6c49b1d7b216b8626197e4b89

Im a bit lost, you mean you create a code that can be run on mobile fast enough to search for the private key of a known public key within a limited search space?
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Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
noaj24
on 10/11/2018, 07:09:02 UTC
Quote from: arulbero on June 17, 2018, 11:48:59 AM
Quote from: lolobit2 on June 17, 2018, 11:29:04 AM

16.8 seconds :

what do you use to calculate cpu gpu ? what's the wattage?


I used a mobile cpu (only 1 core): Intel Xeon E3-1505M v6

If you use just only a mobile cpu, what repository you use (searching the space) that also work in mobile?

I'm currently using one in github but only works in pc.
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Topic
Board Project Development
[BOUNTY 0.15 BTC] simple python implementation of bitcoin address
by
noaj24
on 10/11/2017, 11:43:43 UTC
Hello I need a developer for a simple program using python that would generate multiple bitcoin address using same seed and entropy.
Please message me asap. Thank you.
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Board Bitcoin Technical Support
Re: 16~25BTC for request someone recovery our Blockchain wallet 2nd Password
by
noaj24
on 09/11/2017, 00:57:48 UTC
That can be recover, however what will be the assurance the you will pay whoever can help you recover your password?
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Topic
Board Project Development
[BOUNTY 0.02BTC] Github-pybitcoin-ImportError
by
noaj24
on 09/11/2017, 00:30:02 UTC
Hello I was wondering maybe someone can help me on this

I cloned the file https://github.com/blockstack/pybitcoin.git in my terminal and I had done installing the requirements and successfully run using the command
Code:
sudo python setup.py install

However when I run the  
Code:
python unit_tests.py
I got the following error:

Traceback (most recent call last): File "unit_tests.py", line 38, in from settings import BITCOIND_RPC_PASSWORD, BITCOIND_RPC_USERNAME, \ ImportError: cannot import name BITCOIND_RPC_PASSWORD


also in  
Code:
python wallet.py
I got the following error:

Traceback (most recent call last): File "wallet.py", line 12,, in from .keypair import * ValueError: Attempted relative import in non-package

I already open an issue at the repository but I don't think the users are not active, I also tried to reach out to the author to no avail.

I am hoping someone can enlighten me regarding the error as I am new to python. Any help would be highly appreciated. Thank you so much. attached image is the list in my
Code:
pip freeze

Am I missing some libraries?

https://ibb.co/gSmHXb
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Board Project Development
Re: Thoughts on OpenBazaar
by
noaj24
on 09/11/2017, 00:09:33 UTC
I have tried it for about a week then knock it off, not a user friendly.