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master
edensg 2 years ago
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89a4d7570e
  1. 2
      .gitignore
  2. 185
      Cargo.lock
  3. 12
      Cargo.toml
  4. 79
      src/main.rs

2
.gitignore

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/target
**/*.rs.bk

185
Cargo.lock

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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
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12
Cargo.toml

@ -0,0 +1,12 @@
[package]
name = "zerowidthhashes"
version = "0.1.0"
authors = ["edensg <eden@edensg.me>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
crypto-hash = "0.3.4"
num_cpus = "1.11.0"
hex = "0.4.0"

79
src/main.rs

@ -0,0 +1,79 @@
extern crate crypto_hash;
extern crate hex;
extern crate num_cpus;
use crypto_hash::{hex_digest, Algorithm};
use std::sync::mpsc::{self, TryRecvError};
use std::thread;
fn main() {
let target = "01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b";
let core_count = num_cpus::get() as u32;
let increment: u32 = 0xffffffff / core_count;
let mut threads = Vec::new();
for thread_index in 0..core_count {
let (tx, rx) = mpsc::channel();
threads.push((
thread::spawn(move || {
println!(
"Spawned thread #{:?} with characters {:?} through {:?}\ntarget is {:?}",
thread_index,
increment * thread_index,
increment * (thread_index + 1),
target
);
for x in increment * thread_index..increment * (thread_index + 1) {
match rx.try_recv() {
Ok(_) | Err(TryRecvError::Disconnected) => {
println!("Terminating.");
break;
}
Err(TryRecvError::Empty) => {}
}
let byte_vec = trim_bytes(x);
let hash = hex_digest(Algorithm::SHA256, byte_vec.as_slice());
if hash == target {
println!(
"{:?} - {:?}",
hex::encode(x.to_be_bytes()),
hex_digest(Algorithm::SHA256, trim_bytes(x).as_slice())
);
break;
}
}
}),
tx,
));
}
loop {
for thread in threads {
match thread.1.try_recv() {
Ok(_) => {
for thread in threads {
break;
}
}
Err(_) => {}
}
}
is_first_loop = false;
}
}
fn trim_bytes<'a>(x: u32) -> Vec<u8> {
let full_byte_array = x.to_be_bytes();
let mut v: Vec<u8> = Vec::new();
let mut has_encountered_value = false;
for byte in &full_byte_array {
if has_encountered_value {
v.push(*byte);
} else {
if *byte != 0u8 {
v.push(*byte);
has_encountered_value = true;
}
}
}
v
}
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