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feat: initial commit

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This commit is contained in:
Muhammad Nauman Raza 2024-12-09 22:48:01 +00:00
commit f4e258dfdf
Signed by: devraza
GPG key ID: 91EAD6081011574B
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.gitignore vendored Normal file
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/target

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Cargo.toml Normal file
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[package]
name = "oxysum"
version = "0.1.0"
edition = "2021"
[dependencies]
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rand_chacha = "0.3.1"

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src/main.rs Normal file
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use std::fs;
use clap::Parser;
use rand::{distributions::Alphanumeric, Rng, SeedableRng, seq::SliceRandom, rngs::StdRng};
/// Hashes a file
#[derive(Parser, Debug)]
#[command(version, about, long_about = None)]
struct Args {
/// File to hash
filename: String,
}
fn hash(input: Vec<u8>) -> String {
let characters = "abcdefghijklmnopqrstuvwxyz".chars().collect::<Vec<char>>();
let numbers = "0123456789".chars().collect::<Vec<char>>();
let mut hash: u64 = 0;
let prime: u64 = 67_280_421_310_721;
for (i, c) in input.iter().enumerate() {
hash = hash.wrapping_mul(prime).wrapping_add(*c as u64 + i as u64);
}
let mut hash_items: Vec<u8> = vec![];
for i in hash.to_string().chars() {
hash_items.push(i as u8 - 48);
}
let mut hash_vector: Vec<char> = vec![];
while hash_vector.len() < 64 {
for (idx, i) in hash_items.iter().enumerate() {
hash_vector.push(numbers[(idx+*i as usize) / 3_usize]);
hash_vector.push(characters[*i as usize]);
}
}
let mut rng = StdRng::seed_from_u64(hash);
hash_vector.shuffle(&mut rng);
hash_vector[0..64].iter().collect()
}
fn testing() {
let mut hashes: Vec<String> = vec![];
for _ in 1..1_000_000 {
let s: String = rand::thread_rng()
.sample_iter(&Alphanumeric)
.take(8)
.map(char::from)
.collect();
let current_hash = hash(s.into_bytes().to_vec());
if hashes.contains(&current_hash) {
println!("collision");
}
hashes.push(current_hash.clone());
}
}
fn main() {
let args = Args::parse();
let data = fs::read(args.filename).expect("File not found");
println!("{}", hash(data));
testing();
}

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LlFVZIM9