Distributed brute-force preimage attacks based on pool-mining
Go 1.21 or newer
pmbench is a benchmark utility that takes no arguments
pmd is the pool daemon, meant for running on a single dedicated control node
pmc is the client, runs on computation nodes
Usage of pmd:
-address string
Address to listen on (default "0.0.0.0:1234")
-hashes string
File containing list of hases, formatted in lines of
<type> <hash>
Where hash is in hex, and may be a prefix for quick demonstration
Supported types: md5, sha1, sha224, sha256, sha384, sha512
(default "hashes")
Usage of pmc:
-address string
Address of the pool (default "127.0.0.1:1234")
-password string
Password (default "password")
-username string
Username (default "username")
Authentication is not implemented yet, any username or password will work
The controlling node that delivers jobs to computation nodes, and find the actual preimage from solutions to jobs
The computation nodes, like miners in pool-mining
A hash to solve
A prefix of Work, with length determined by Difficulty
A Target and a search space, for Client to search on
Expected hashes to find a solution to Job. Pool adjusts Difficulty (via length of Target) of each Client that the Client find solutions to Jobs at a desired rate, to low enough that Pool can stably monitor inferred performance and effort of Client from statistics, but also high enough that there are few solutions to find actual preimage from.