shallenge

This project tries to find the lowest SHA256 possible given a string based on the rules of https://shallenge.quirino.net/.

It uses goroutines to calculate different strings hash concurrently.

String format

• {username}/{nonce}
  • username: 1-32 characters from a-zA-Z0-9_-
  • nonce: 1-64 characters from Base64 (a-zA-Z0-9+/)

The hash of the full string will be considered, not just the nonce

For example for the following string: "0x00cl/i5+8250U/Hi/HN/OinJeJj/eam3VRRI9d" the hash is "0000000003b98cfcf91b9b3e637354916d9cb960638373758d81072349bcb778"

Compiling

$ go build

Running

$ ./shallenge

Running options

$ ./shallenge -h
  -h    Print this help message.
  -n int
        Number of workers to spawn (default 8)
  -p string
        String to add as suffix to the random generated word (default "i5+8250U/Hello+HN/")
  -v    Print the version number.