Hello,
I am currently working on a research project that have the similar initiative of VanitySearch. A portion of my project includes to find the public key x cord with a given prefix.
Huge appreciation to the original project
https://github.com/JeanLucPons/VanitySearch and the fork
https://github.com/bojlahg/VanitySearchPublicKey, these two project helped me found few results with Secp256K1, yet proven my research direction is feasible (Finding given six bytes of prefix and find the public key in reasonable amount of time). To accomplish the research goal, I am trying to make the VanitySearch project be Secp224R1, but still struggling to get the self-checking works correctly. I planned to firstly make the project be Secp224K1 CPU Only, because they are much similar (both y^2 = X^3 + b). Once it worked, then move forward to 224R1 CPU then on GPU as the final objective.
I am writing this post is seeking for help on this project, any helps in coding or debugging are really appreciated. I am currently updating my personal modifications at
https://github.com/Chapoly1305/VanitySearchPublicKey, the branch "crazy" is a functional program removed irrelevant logic for isolation consideration. The branch secp224k1 is what I currently posting all sorts of attempts.
In summary to the branch, I have set the parameters {p,a,b,Gx,Gy, n(order), lamba_1, lamba_2, beta_1, beta_2} according to
https://neuromancer.sk/std/secg/secp224k1 and
https://secg.org/sec2-v2.pdf. However, the VanitySearch -check failed at
GetBase10() Results OK
Add() Results OK : 2.000 GigaAdd/sec
Mult() Results OK : 81.301 MegaMult/sec
Div() Results OK : 16.393 MegaDiv/sec
R1=1000000000000000000000000000000000000000000000000
R2=100001A930000000000000000000000000000000000000000
Field characteristic size: 224bits
ModInv()/ModExp() Results Wrong:ModInv=144EE430EFC0E5987ABBDAF79FEEEF520346A9BB60B727C06198A1D3
ModExp=35167A5885D31C42D06E71788D4424B1FCBFD528A78821E9BBA7868
Check Generator :Failed !
Check Double :Failed !
Check Add :Failed !
Check GenKey :Failed !
GPU code not compiled, use -DWITHGPU when compiling.
