From 2d12f6ec2294e36ae090fdd1e10025452ec1a480 Mon Sep 17 00:00:00 2001 From: alyx Date: Sun, 19 Nov 2023 14:55:43 -0500 Subject: Initial commit, done up to 2015.7 --- 2015/rs/src/four.rs | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 2015/rs/src/four.rs (limited to '2015/rs/src/four.rs') diff --git a/2015/rs/src/four.rs b/2015/rs/src/four.rs new file mode 100644 index 0000000..177ddc5 --- /dev/null +++ b/2015/rs/src/four.rs @@ -0,0 +1,46 @@ +use md5::{Digest, Md5}; +use std::fmt::Write; +use std::io::Write as WriteI; + +static INPUT: &'static [u8] = b"yzbqklnj"; + +fn main() { + let mut buf = Vec::with_capacity(INPUT.len() + 10); + buf.extend_from_slice(INPUT); + + for i in 0.. { + if i % 1000 == 0 { print!("{i}\r"); std::io::stdout().flush(); } + + let mut hasher = Md5::new(); + write!(&mut buf, "{i}"); + hasher.update(buf.as_slice()); + let hash = hasher.finalize(); + if hash.starts_with(&[0, 0]) && hash[2] < 16 { + let mut hexhash = String::with_capacity(32); + for digit in hash { + write!(&mut hexhash, "{digit:02x}"); + } + println!("Got 5 digit hash: {hexhash}, at {i}"); + break; + } + buf.truncate(INPUT.len()); + } + + for i in 0.. { + if i % 1000 == 0 { print!("{i}\r"); std::io::stdout().flush(); } + + let mut hasher = Md5::new(); + write!(&mut buf, "{i}"); + hasher.update(buf.as_slice()); + let hash = hasher.finalize(); + if hash.starts_with(&[0, 0, 0]) { + let mut hexhash = String::with_capacity(32); + for digit in hash { + write!(&mut hexhash, "{digit:02x}"); + } + println!("Got 6 digit hash: {hexhash}, at {i}"); + break; + } + buf.truncate(INPUT.len()); + } +} -- cgit v1.2.3-54-g00ecf