vmann/cryptopals-rust
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use into_iter to iterate key bytes by value

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This commit is contained in:
Thomas Lindner 2023-12-17 00:51:47 +01:00
parent 41581053dd
commit 25b1621892
2 changed files with 3 additions and 3 deletions
common/src
lib.rs
set1/challenge2_fixed_xor/src
main.rs

4
common/src/lib.rs
View file

@ -13,12 +13,12 @@ pub fn score(plaintext: &Vec<u8>) -> u32 {
score score
} }
pub fn fixed_xor_cipher(ciphertext: &Vec<u8>, keyiter: &mut dyn Iterator<Item = &u8>) -> Vec<u8> { pub fn fixed_xor_cipher(ciphertext: &Vec<u8>, keyiter: &mut dyn Iterator<Item = u8>) -> Vec<u8> {
ciphertext.iter().zip(keyiter).map(|(c, k)| c ^ k).collect() ciphertext.iter().zip(keyiter).map(|(c, k)| c ^ k).collect()
} }
pub fn xor_cipher(ciphertext: &Vec<u8>, key: u8) -> Vec<u8> { pub fn xor_cipher(ciphertext: &Vec<u8>, key: u8) -> Vec<u8> {
fixed_xor_cipher(ciphertext, &mut repeat(&key)) fixed_xor_cipher(ciphertext, &mut repeat(key))
} }
pub fn break_xor_cipher(ciphertext: &Vec<u8>) -> (Vec<u8>, u32) { pub fn break_xor_cipher(ciphertext: &Vec<u8>) -> (Vec<u8>, u32) {

2
set1/challenge2_fixed_xor/src/main.rs
View file

@ -23,7 +23,7 @@ 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)) => println!("{}", fixed_xor_cipher(&v1, &mut v2.iter()).to_hex()), (Ok(v1), Ok(v2)) => println!("{}", fixed_xor_cipher(&v1, &mut v2.into_iter()).to_hex()),
(Err(e), _) => error!("{}", e), (Err(e), _) => error!("{}", e),
(_, Err(e)) => error!("{}", e) (_, Err(e)) => error!("{}", e)
} }