unrevert the use of bn_rand_interval().

ok beck jsing

1 files changed, 4 insertions, 5 deletions

diff --git a/src/lib/libcrypto/ec/ec_key.c b/src/lib/libcrypto/ec/ec_key.c
index ca49c7676e..6ab4d3c9a4 100644
--- a/src/lib/libcrypto/ec/ec_key.c
+++ b/src/lib/libcrypto/ec/ec_key.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_key.c,v 1.20 2018/11/06 02:14:39 tb Exp $ */
+/* $OpenBSD: ec_key.c,v 1.21 2018/11/06 07:02:33 tb Exp $ */
 /*
  * Written by Nils Larsch for the OpenSSL project.
  */
@@ -65,6 +65,7 @@
 
 #include <openssl/opensslconf.h>
 
+#include "bn_lcl.h"
 #include "ec_lcl.h"
 #include <openssl/err.h>
 
@@ -231,10 +232,8 @@ EC_KEY_generate_key(EC_KEY *eckey)
         if (!EC_GROUP_get_order(eckey->group, order, ctx))
                 goto err;
 
-        do
-                if (!BN_rand_range(priv_key, order))
-                        goto err;
-        while (BN_is_zero(priv_key));
+        if (!bn_rand_interval(priv_key, BN_value_one(), order))
+                goto err;
 
         if (pub_key == NULL) {
                 if ((pub_key = EC_POINT_new(eckey->group)) == NULL)