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Showing 6 of 6 results by demoinvest1
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Board Development & Technical Discussion
Re: Pollard's kangaroo ECDLP solver
by
demoinvest1
on 16/11/2021, 09:45:02 UTC

Can possible Pollard's kangaroo can search multiple pubkey in same time?
I mean check multiple pubkey at once
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Board Development & Technical Discussion
Re: R,s,z qeschion !
by
demoinvest1
on 16/11/2021, 02:25:32 UTC
Quote from: NotATether on November 15, 2021, 03:26:54 AM

R and S are public inside the transaction output. Z is just the SHA256 hash of the raw transaction, not the signed transaction.

Usually, it is not possible to obtain the private key from an RSZ triple, since if you could, that would break the security model of Bitcoin.

But if you have two RSZ triples that were generated with the same nonce ("k"), you can solve two equations of the form s = k-1(z + r*dA) mod n (this comes from the verification algorithm) for dA, the private key.

Thank you very much. help to understand more
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Board Development & Technical Discussion
Re: R,s,z qeschion !
by
demoinvest1
on 15/11/2021, 01:27:00 UTC
I read bout method use R,S,Z but not yet understand yet why it can use calculate to know privatekey
method looking R and S on Transaction How I can calculate Z? what equation for calculate
and if  I have private key how to calculate R,S,Z for testing Can do it or not?

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Board Development & Technical Discussion
Re: BSGS solver for cuda
by
demoinvest1
on 13/11/2021, 02:00:49 UTC
Quote from: demoinvest1 on Today at 01:27:35 AM

Thank you
Now I change to use PureBasic v5.30, problem , How I can find cuda.lib ?

POLINK: fatal error: File not found lib\cuda.lib

Ok, I solve my problem already
Now, I got cuda.lib from NVIDIA CUDA 10 driver

C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.0\lib\x64
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Board Development & Technical Discussion
Re: BSGS solver for cuda
by
demoinvest1
on 13/11/2021, 01:27:35 UTC
Quote from: Etar on November 12, 2021, 09:45:45 AM

you need purebasic v5.31 because need ascll mode enabled
in new version of PB removed ascll mode.

Thank you
Now I change to use PureBasic v5.30, problem , How I can find cuda.lib ?

POLINK: fatal error: File not found lib\cuda.lib
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Topic
Board Development & Technical Discussion
Re: BSGS solver for cuda
by
demoinvest1
on 12/11/2021, 09:28:43 UTC

I try run bsgscudaHT_1_7_3.exe and bsgscudaHT_1_8_0.exe is work fine

but for code on github  bsgscudaussualHTchangeble1_7_3.pb
I try use purebasic v5.70 run it but not work with SHA1Fingerprint function
How can I fix it?

Just try understand method BSGS how it works?