We almost reached 50% probability yesterday (~8 days of run, ~2^33 DP, DP25) but unfortunately everything was shutdown due to a storm
Fortunately the workfiles has been preserved but we have to restart clients and servers to recover from crash.
As there was no kangaroo backup we will get a DP overhead by restarting the work.
I don't know if Zielar restarted the GPUs, yesterday he was a bit nervous
We also get lots of troubles handling large workfiles (above 200GB) so I created a partitioned work file system (available on github) , an integrity workfile checker. We manage to re-merge all worfiles in ~24H.
The current release is tagged 1.10(unstable) but should work.
Hope it will go better now...

Hi,

1.9 is ready:

    Added -wmdir option (thanks to PatatasFritas)
    Support of kangaroo backup for client

wmdir is for merging

kangaroo -wmdir dir_name work_file_name: It merge all work files present in dir_name to work_file_name

I'm working on the README

Congrats to zielar for solving #110
Hope you will solve #115
And more 

I'm sorry but I can't help you as I'm not the author of this mods.

6*sqrt(N) => 99.752% chance that you found the key so ~0.25% chance that the key is well in the range.
This value assume that your setup is well tuned with a negligible DP overhead.

The only reward I asked to Zielar is a symbolic satoshi to a symbolic address which is quite important for me. Nothing more. And I will refuse any remuneration for this tool or any other GPL3 tools I did. I already received tons of emails for various development request with fee.

I did this tool for everybody and I will continue, however I can't develop a secure server with a validation mechanism for a pool, it is a very hard task.
I don't know if Zielar solved #62 and #63 with the VanitySearch engine and his own mods or with bitcrack.

Visual Studio 2015 + Cuda 8 => Take project files in VC_CUDA8
Visual Sutido 2017 + Cuda 10 => Take project files in VC_CUDA10
Visual Studio 2019 + Cuda10.2 => Take project files in VC_CUDA102

Note: I don't have a dev environment Visual Studio 2017 + Cuda 10 at the moment so project files may be out of date and some files may be missing, in that case just add them to the project...

I recommend to use Visual Studio 2019 + Cuda10.2.

I will update the README.

Compiled exe are available from:
https://github.com/JeanLucPons/Kangaroo/releases

Right.
256 for fast access (and check) 1 dummy point is sacrificed.

The ComputePublicKey() in kangaroo use 32 blocks of 256 precomputed points and zero are checked so it performs:
31 adds max for a full privkey (nothing when a zero byte is present) and a modular inversion.
There is also a ComputePublicKeys() which group modular inversions.

I disagree.
I spent much time to explain in the readme, in this topics or in the code the way to choose best parameters and trap to avoid.
Zielar has also to win his life and cannot spend full time to solve these puzzles.
It is far from sure that Zielar will win all the races.

Anyway, I'm working on the 1.9 in order to integrate mods from PatataFritas and support of -ws for clients.


Edit: You have no idea who Zielar is actually. He is a very competent person in his domain, I must say that from time to time I pain to follow him !

As said in the README the server is simple and doesn't have an authentication mechanism.
It is quite easy for a hacker to make it crash or make it generate wrong collision to make the server unusable.
So, do not export this server to the world or hide the ip and port and give server address to trusted person only.

May the best win

This is a race, we keep few settings secret.
We will probably end to fight after #120.
However now news from Zielar, he is probably sleeping

Zielar solved #110 by merging 2 files of 2^29.55 DP each = 2^30.55 => DP25 => total of 2^(30.55 + 25) operations = ~2^(109/2+1) , a little bit after the average.

As said by MrFreeDragon this kind of ASIC is dedicated to hashing only and Kangaroo has nothing to do with hashing. To my knowledge no ASIC exist for ECDSA calculation...

ASIC means Application-Specific Integrated Circuit which means that you have to build a dedicated electronic component to do the job, you probably want to say FPGA ?
I have only a little experience with FPGA programming and powerful development boards are rather expensive, maybe I can try to get one from my job, I don't know but this is not yet planned...

Ygrid is the second coordinate of the GPU thread array.
It affects performance. This is very useful for linear algebra because you can use thread coordinates to make fast matrix calculus.
In our case, this is just used to tune performance.

I was in weekend, Yesterday was also a day off in France, I restart the work today. I also have professional work to perform but I will continue to make update on github when I can for everybody. I will try to integrate ASAP the mods from  PatatasFritas and the support of -ws for the client mode. News from AndrewBrz who is progressing well with the OpenCL kernel.

Zielar solved #110 with official 1.8 and 1.9alpha for merging.

Just to clarify thing.
Zielar fully respected the contract with me.
He paid for the service and he will give me access to GPU resource to make experiments.
He is a gentleman and a very competent person.

https://github.com/JeanLucPons/Kangaroo/blob/master/DOC/keys110.jpg

Well done !

congrats to zielar