1 files changed, 6 insertions, 4 deletions

diff --git a/src/lib/libcrypto/dsa/dsa_ossl.c b/src/lib/libcrypto/dsa/dsa_ossl.c
index 7c0a7802b0..13101cea1d 100644
--- a/src/lib/libcrypto/dsa/dsa_ossl.c
+++ b/src/lib/libcrypto/dsa/dsa_ossl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: dsa_ossl.c,v 1.23 2015/09/10 07:58:28 bcook Exp $ */
+/* $OpenBSD: dsa_ossl.c,v 1.24 2016/06/06 10:00:04 beck Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -247,9 +247,6 @@ dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
                 if (!BN_rand_range(&k, dsa->q))
                         goto err;
         } while (BN_is_zero(&k));
-        if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0) {
-                BN_set_flags(&k, BN_FLG_CONSTTIME);
-        }
 
         if (dsa->flags & DSA_FLAG_CACHE_MONT_P) {
                 if (!BN_MONT_CTX_set_locked(&dsa->method_mont_p,
@@ -283,6 +280,11 @@ dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
         } else {
                 K = &k;
         }
+
+        if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0) {
+                BN_set_flags(&k, BN_FLG_CONSTTIME);
+        }
+
         DSA_BN_MOD_EXP(goto err, dsa, r, dsa->g, K, dsa->p, ctx,
             dsa->method_mont_p);
         if (!BN_mod(r,r,dsa->q,ctx))