vmann/cryptopals-rust
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make solution more compact

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This commit is contained in:
Thomas L 2016-09-10 16:09:55 +02:00
parent 5b5c47fe15
commit 8beb3262bc
1 changed files with 1 additions and 8 deletions
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9
set1/fixed_xor/src/main.rs
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@ -4,7 +4,6 @@ extern crate env_logger;
extern crate rustc_serialize; extern crate rustc_serialize;
use rustc_serialize::hex::{FromHex, ToHex}; use rustc_serialize::hex::{FromHex, ToHex};
use std::cmp::min;
use std::io::{BufRead, stdin}; use std::io::{BufRead, stdin};
struct Pairwise<T: Iterator>(T); struct Pairwise<T: Iterator>(T);
@ -27,13 +26,7 @@ fn main() {
for (line1, line2) in Pairwise(stdin.lock().lines().filter_map(|x| x.ok())) { for (line1, line2) in Pairwise(stdin.lock().lines().filter_map(|x| x.ok())) {
match (line1.from_hex(), line2.from_hex()) { match (line1.from_hex(), line2.from_hex()) {
(Ok(v1), Ok(v2)) => { (Ok(v1), Ok(v2)) => println!("{}", v1.iter().zip(v2).map(|(a, b)| a ^ b).collect::<Vec<u8>>().to_hex()),
let mut out = Vec::with_capacity(min(v1.len(), v2.len()));
for (lhs, rhs) in v1.iter().zip(v2) {
out.push(lhs ^ rhs)
}
println!("{}", out.to_hex())
},
(Err(e), _) => error!("{}", e), (Err(e), _) => error!("{}", e),
(_, Err(e)) => error!("{}", e) (_, Err(e)) => error!("{}", e)
} }