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@Basicprogrammer10
Created February 16, 2022 04:37
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Cringe Compress
[package]
name = "cringe_compress"
version = "0.1.0"
edition = "2021"
[dependencies]
itertools = "0.10.3"
byteorder = "1.4.3"
sha2 = "0.10.1"
use std::fs;
use std::io::Cursor;
use std::path::Path;
use byteorder::{BigEndian, ReadBytesExt};
use itertools::Itertools;
use sha2::{Digest, Sha256};
fn main() {
// compress("test.txt");
decompress("test.txt.cc");
}
fn compress<T>(file: T)
where
T: AsRef<Path>,
{
let inp = fs::read(&file).unwrap();
let size = inp.len();
let mut hasher = Sha256::new();
hasher.update(inp);
let hash = hasher.finalize().to_vec();
let mut out = hash;
out.extend((size as u32).to_be_bytes());
let mut path = file.as_ref().to_string_lossy().to_string();
path.push_str(".cc");
fs::write(path, out).unwrap();
}
fn decompress<T>(file: T)
where
T: AsRef<Path>,
{
let inp = fs::read(&file).unwrap();
let parts = inp.split_at(32);
let mut rdr = Cursor::new(parts.1);
let size = rdr.read_u32::<BigEndian>().unwrap();
let hash = parts
.0
.iter()
.map(|b| format!("{:02x}", b))
.collect::<Vec<String>>()
.join("");
println!("Length: {}", size);
println!("Hash: {}", hash);
let hash = hash.bytes().collect_vec();
for i in (0..=255).permutations(size as usize) {
let mut hasher = Sha256::new();
hasher.update(&i);
let this_hash = hasher.finalize().to_vec();
if this_hash == hash {
println!("Found!");
fs::write("OUT.txt", i).unwrap();
break;
}
}
}
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