fix!: remove rust-crypto

src/bin/04.rs

@@ -1,40 +1,32 @@
-use crypto::digest::Digest;
-use crypto::md5::Md5;
+use md5::{Digest, Md5};
 
 pub fn part_one(input: &str) -> Option<u32> {
     let key = input.trim().as_bytes();
     let mut hasher = Md5::new();
     for x in 0..std::u64::MAX {
-        hasher.input(key);
-        hasher.input(x.to_string().as_bytes());
+        hasher.update(key);
+        hasher.update(x.to_string().as_bytes());
+        let output = hasher.finalize_reset();
 
-        let mut output = [0; 16];
-        hasher.result(&mut output);
-
-        let first_five = output[0] as u32 + output[1] as u32 + (output[2] >> 4) as u32;
-        if first_five == 0 {
+        if output.starts_with(&[0, 0]) && output[2] <= 0x0F {
             return Some(x as u32);
         }
-        hasher.reset();
     }
-    None
+    unreachable!()
 }
 pub fn part_two(input: &str) -> Option<u32> {
     let key = input.trim().as_bytes();
     let mut hasher = Md5::new();
     for x in 0..std::u64::MAX {
-        hasher.input(key);
-        hasher.input(x.to_string().as_bytes());
-
-        let mut output = [0; 16];
-        hasher.result(&mut output);
+        hasher.update(key);
+        hasher.update(x.to_string().as_bytes());
+        let output = hasher.finalize_reset();
 
         if output.starts_with(&[0, 0, 0]) {
             return Some(x as u32);
         }
-        hasher.reset();
     }
-    None
+    unreachable!()
 }
 fn main() {
     let input = &aoc::read_file("inputs", 4);