unikernel/duniverse/digestif/src-ocaml/baijiu_sha224.ml

@@ -0,0 +1,41 @@
+module By = Digestif_by
+module Bi = Digestif_bi
+
+module type S = sig
+  type ctx
+  type kind = [ `SHA224 ]
+
+  val init : unit -> ctx
+  val unsafe_feed_bytes : ctx -> By.t -> int -> int -> unit
+  val unsafe_feed_bigstring : ctx -> Bi.t -> int -> int -> unit
+  val unsafe_get : ctx -> By.t
+  val dup : ctx -> ctx
+end
+
+module Unsafe : S = struct
+  type kind = [ `SHA224 ]
+
+  open Baijiu_sha256.Unsafe
+
+  type nonrec ctx = ctx
+
+  let init () =
+    let b = By.make 128 '\x00' in
+    {
+      size = 0L;
+      b;
+      h =
+        [|
+          0xc1059ed8l; 0x367cd507l; 0x3070dd17l; 0xf70e5939l; 0xffc00b31l;
+          0x68581511l; 0x64f98fa7l; 0xbefa4fa4l;
+        |];
+    }
+
+  let unsafe_get ctx =
+    let res = unsafe_get ctx in
+    By.sub res 0 28
+
+  let dup = dup
+  let unsafe_feed_bytes = unsafe_feed_bytes
+  let unsafe_feed_bigstring = unsafe_feed_bigstring
+end