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Bitcoin / Development & Technical Discussion / Calculating closer values to the target public key

on: July 09, 2023, 11:44:51 PM

Hey guys do you think there are ways or any tool out there that can actually get us closer to the target public key? What I mean by this is for example let's say G= 120 and P= 1134 where pK = 136080 (G= generator point, P= priv_key, pK = pub key) let's pretend that we don't have P just pK and we search random ranges to see if pK is within the range of some random valid range within Seco256k1. Well of course i understand that the point doubling doesn't happen like this but just for the sake of example. But let me know your thoughts

Bitcoin / Development & Technical Discussion / Re: Pollard's kangaroo ECDLP solver

on: November 26, 2022, 02:00:39 AM

Quote from: _Counselor on November 23, 2022, 06:03:46 AM Quote from: Shelby0901 on November 23, 2022, 03:38:53 AM I am not able to find the PrivateKey it just says done, is it a bug or am i doing something wrong? Your key is on the edge of provided range. This is the hardest option. It will still be found, but it will take more time and more luck. Code: [96.67 MK/s][GPU 0.00 MK/s][Count 2^33.51][Dead 2][02:26 (Avg 01:35)][47.6/81.5MB] Key# 0 [1S]Pub: 0x029E162328C08BF1B3C9BA030ACBDBE111D1191D07A157AB285A403A739E5F0139 Priv: 0xE9C742148F3F0C84463F29FE66E2CA So what does dead kangaroos mean?

Bitcoin / Development & Technical Discussion / Re: Pollard's kangaroo ECDLP solver

on: November 23, 2022, 03:38:53 AM

I am not able to find the PrivateKey Undecided

it just says done, is it a bug or am i doing something wrong?

this is the range

Code:

e9c742148f3f0b84463f29fe66e2db
e9c742148f3f0c84463f29fe66e2da
029e162328c08bf1b3c9ba030acbdbe111d1191d07a157ab285a403a739e5f0139

this is the private key

Code:

private key -  0000000000000000000000000000000000e9c742148f3f0c84463f29fe66e2ca

029e162328c08bf1b3c9ba030acbdbe111d1191d07a157ab285a403a739e5f0139

and as you see here i use a lower DP it shows the same even if use the suggested DP that is 12

Code:

Kangaroo v2.2
Start:E9C742148F3F0B84463F29FE66E2DB
Stop :E9C742148F3F0C84463F29FE66E2DA
Keys :1
Number of CPU thread: 4
Range width: 2^64
Jump Avg distance: 2^31.99
Number of kangaroos: 2^16.64
Suggested DP: 12
Expected operations: 2^33.07
Expected RAM: 346.9MB
DP size: 10 [0xFFC0000000000000]
SolveKeyCPU Thread 2: 1024 kangaroos
SolveKeyCPU Thread 0: 1024 kangaroos
SolveKeyCPU Thread 3: 1024 kangaroos
SolveKeyCPU Thread 1: 1024 kangaroos
GPU: GPU #0 GeForce GT 710 (1x192 cores) Grid(2x384) (14.5 MB used)
SolveKeyGPU Thread GPU#0: creating kangaroos...
SolveKeyGPU Thread GPU#0: 2^16.58 kangaroos [0.7s]
[29.87 MK/s][GPU 10.19 MK/s][Count 2^33.88][Dead 5][09:54 (Avg 05:01)][474.0/599.0MB]
Done: Total time 10:03

and what does dead kangaroo mean?

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