1 files changed, 2 insertions, 0 deletions
diff --git a/ssh-rsa.c b/ssh-rsa.c
index 9b14f9a9..d8c3d95f 100644
--- a/ssh-rsa.c
+++ b/ssh-rsa.c
@@ -132,8 +132,10 @@ ssh_rsa_complete_crt_parameters(struct sshkey *key, const BIGNUM *iqmp)
 		r = SSH_ERR_ALLOC_FAIL;
 		goto out;
 	}
+#if !defined(OPENSSL_IS_BORINGSSL)
 	BN_set_flags(aux, BN_FLG_CONSTTIME);
 	BN_set_flags(d_consttime, BN_FLG_CONSTTIME);
+#endif
 
 	if ((BN_sub(aux, rsa_q, BN_value_one()) == 0) ||
 	    (BN_mod(rsa_dmq1, d_consttime, aux, ctx) == 0) ||