update safety comments

SwarmBotMC · Oct 22, 2023 · dfd13ca · dfd13ca
1 parent beaf72f
commit dfd13ca
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/protocol/io/mod.rs b/src/protocol/io/mod.rs
@@ -38,6 +38,7 @@ impl Aes {
     }
 
     pub fn encrypt(&mut self, elem: &mut [u8]) {
+        // SAFETY: Cfb8Block is POD (plain old data)
         let (prefix, blocks, suffix) = unsafe { elem.align_to_mut::<Cfb8Block>() };
 
         debug_assert!(prefix.is_empty());
@@ -47,6 +48,7 @@ impl Aes {
     }
 
     pub fn decrypt(&mut self, elem: &mut [u8]) {
+        // SAFETY: Cfb8Block is POD (plain old data)
         let (prefix, blocks, suffix) = unsafe { elem.align_to_mut::<Cfb8Block>() };
 
         debug_assert!(prefix.is_empty());