Basic filesystem encryption info

src/development/design/filesystem.md

@@ -44,6 +44,7 @@ const CHUNK_SIZE: u16; // Example static chunk size
 struct Chunk {
     checksum: u64,
     extends: bool,
+    encrypted: bool,
     uuid: Uuid,
     data: [u8; CHUNK_SIZE],
 }
@@ -52,6 +53,7 @@ This struct is then encoded into bytes and written to the disk. Drivers for the
 It *should* be possible to do autodetection, and maybe for *Actors* to specify which disk/partition they want to be saved to.
 
 Compression of the data should also be possible, due to `bincode` supporting [flate2](https://lib.rs/crates/flate2) compression.
+Similarely **AES** encryption can be used, and this allows for only specific chunks to be encrypted.[^encryption]
 
 ### Reading
 On boot, we start executing code from the beginning of the disk (the boot partition, although that's meaningless at this point).
@@ -75,6 +77,8 @@ Again, whether actors can:
 
 will be determined via [capabilities](/development/design/actor.md#ocap)
 
+[^encryption]: Specific details to be figured out later
+
 [^find_chunk]: Currently via magic. I have no idea how to do this other than a simple search. Maybe generate an index, or use a **UUID**?
 
 [^free_chunk]: Again, no idea how.