diff --git a/src/misc2.c b/src/misc2.c
index 1eb4e8a..9327e89 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -3751,6 +3751,41 @@
 static int saved_crypt_method;
 
 /*
+ * Return int value for crypt method string:
+ * 0 for "zip", the old method.  Also for any non-valid value.
+ * 1 for "blowfish".
+ */
+    int
+crypt_method_from_string(s)
+    char_u  *s;
+{
+    return *s == 'b' ? 1 : 0;
+}
+
+/*
+ * Get the crypt method for buffer "buf" as a number.
+ */
+    int
+get_crypt_method(buf)
+    buf_T *buf;
+{
+    return crypt_method_from_string(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
+}
+
+/*
+ * Set the crypt method for buffer "buf" to "method" using the int value as
+ * returned by crypt_method_from_string().
+ */
+    void
+set_crypt_method(buf, method)
+    buf_T   *buf;
+    int	    method;
+{
+    free_string_option(buf->b_p_cm);
+    buf->b_p_cm = vim_strsave((char_u *)(method == 0 ? "zip" : "blowfish"));
+}
+
+/*
  * Prepare for initializing encryption.  If already doing encryption then save
  * the state.
  * Must always be called symmetrycally with crypt_pop_state().