diff --git a/src/eval.c b/src/eval.c
index dc7c240..9f63d45 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -688,6 +688,9 @@
 static void f_settabvar __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_settabwinvar __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_setwinvar __ARGS((typval_T *argvars, typval_T *rettv));
+#ifdef FEAT_CRYPT
+static void f_sha256 __ARGS((typval_T *argvars, typval_T *rettv));
+#endif /* FEAT_CRYPT */
 static void f_shellescape __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_shiftwidth __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_simplify __ARGS((typval_T *argvars, typval_T *rettv));
@@ -8055,6 +8058,9 @@
     {"settabvar",	3, 3, f_settabvar},
     {"settabwinvar",	4, 4, f_settabwinvar},
     {"setwinvar",	3, 3, f_setwinvar},
+#ifdef FEAT_CRYPT
+    {"sha256",		1, 1, f_sha256},
+#endif
     {"shellescape",	1, 2, f_shellescape},
     {"shiftwidth",	0, 0, f_shiftwidth},
     {"simplify",	1, 1, f_simplify},
@@ -16710,6 +16716,24 @@
     }
 }
 
+#ifdef FEAT_CRYPT
+/*
+ * "sha256({string})" function
+ */
+    static void
+f_sha256(argvars, rettv)
+    typval_T	*argvars;
+    typval_T	*rettv;
+{
+    char_u	*p;
+
+    p = get_tv_string(&argvars[0]);
+    rettv->vval.v_string = vim_strsave(
+				    sha256_bytes(p, (int)STRLEN(p), NULL, 0));
+    rettv->v_type = VAR_STRING;
+}
+#endif /* FEAT_CRYPT */
+
 /*
  * "shellescape({string})" function
  */