Pre set 2 refactors

examples/set1_7/main.rs

@@ -1,17 +1,13 @@
 #![feature(array_chunks)]
-use aes::{cipher::{KeyInit, generic_array::GenericArray, Key, BlockEncrypt, BlockDecrypt}, Aes128, Block};
-use cryptopals::{prelude::*, bvec, bvec64};
+use cryptopals::{prelude::*, bvec, bvec64, friendly::aes128};
 
 fn main() {
-    let key: Key<Aes128> = GenericArray::from(*b"YELLOW SUBMARINE");
-    let aes = aes::Aes128::new(&key);
+    let key = *b"YELLOW SUBMARINE";
 
     let input = bvec64!("input.txt");
     let mut output = Vec::new();
     for chunk in input.array_chunks::<16>() {
-        let mut block: Block = GenericArray::from(*chunk);
-        aes.decrypt_block(&mut block);
-        output.extend(<[u8; 16]>::from(block));
+        output.extend(aes128::decrypt(key, *chunk));
     }
 
     dbg!(output.to_text().unwrap());