init repo
This commit is contained in:
commit
26e37123f5
GPG Key ID:
14546221E3595D0C
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/target
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@ -0,0 +1,230 @@
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]
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[[package]]
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@ -0,0 +1,13 @@
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[package]
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name = "powlib"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[lib]
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name = "powlib"
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[dependencies]
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rand = "0.8.5"
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scrypt = "0.11.0"
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@ -0,0 +1,7 @@
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use powlib::{self, gen::{POWRange, POWChallenge}};
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fn main() {
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let challenge = POWChallenge::make(POWRange::new(0, 20480));
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println!("{}", challenge.solve_singlethread());
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}
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@ -0,0 +1,61 @@
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use rand::random;
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use crate::{hash::hash_num, num::Num};
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#[derive(Debug, Clone)]
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pub struct POWRange {
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min: u128,
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max: u128
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}
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impl POWRange {
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pub fn new(min: u128, max: u128) -> POWRange {
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POWRange { min, max }
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}
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}
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#[derive(Debug)]
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pub struct POWChallenge {
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hash: [u8; 32],
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range: POWRange
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}
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impl POWChallenge {
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pub fn new(hash: [u8; 32], range: POWRange) -> POWChallenge {
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POWChallenge { hash, range }
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}
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pub fn make(range: POWRange) -> POWChallenge {
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let secret = (random::<u128>() % (range.max - range.min)) + range.min;
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let secret = Num::new(secret);
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POWChallenge { hash: hash_num(secret), range: range }
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}
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pub fn make_from(num: Num, range: Option<POWRange>) -> POWChallenge {
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POWChallenge { hash: hash_num(num), range: match range {
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Some(v) => v,
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None => POWRange { min: 0, max: num * 2 }
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} }
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}
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pub fn check(self: &POWChallenge, num: Num) -> bool {
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hash_num(num) == self.hash
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}
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pub fn chunk_solve(self: &POWChallenge, start: u128, end: u128) -> Option<u128> {
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for i in start..end {
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if self.check(Num::new(i)) {
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return Some(i)
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}
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||||
}
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None
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}
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pub fn solve_singlethread(self: &POWChallenge) -> u128 {
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match self.chunk_solve(self.range.min, self.range.max) {
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Some(v) => v,
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None => panic!("Number not found in range")
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||||
}
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||||
}
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||||
}
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@ -0,0 +1,17 @@
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use scrypt::{scrypt, Params};
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use crate::num::Num;
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||||
const SALT: [u8; 0] = [];
|
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||||
pub fn hash(data: &[u8], out: &mut [u8]) {
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||||
let params = Params::new(6, 6, 1, 32).unwrap();
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scrypt(data, &SALT.clone(), ¶ms, out).unwrap();
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||||
}
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||||
pub fn hash_num(num: Num) -> [u8; 32] {
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||||
let bnum = num.bytes();
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||||
let mut out: [u8; 32] = [0; 32];
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||||
hash(&bnum, &mut out);
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||||
out
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||||
}
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|
@ -0,0 +1,3 @@
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|||
pub mod gen;
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||||
pub mod hash;
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pub mod num;
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||||
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|
@ -0,0 +1,25 @@
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|||
#[derive(Clone, Copy)]
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||||
pub struct Num {
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||||
number: u128
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||||
}
|
||||
|
||||
impl Num {
|
||||
pub fn new(num: u128) -> Num {
|
||||
Num { number: num }
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||||
}
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||||
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||||
pub fn bytes(self: &Num) -> [u8; 16] {
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||||
self.number.to_be_bytes()
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||||
}
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||||
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||||
pub fn from_bytes(bytes: [u8; 16]) -> Num {
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||||
Num { number: u128::from_be_bytes(bytes) }
|
||||
}
|
||||
}
|
||||
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||||
impl std::ops::Mul<u128> for Num {
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||||
type Output = u128;
|
||||
fn mul(self, rhs: u128) -> Self::Output {
|
||||
self.number * rhs
|
||||
}
|
||||
}
|
||||
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