Add ct and nonct versions of BN_mod_inverse for internal use

ok jsing@

1 files changed, 4 insertions, 2 deletions

diff --git a/src/lib/libcrypto/rsa/rsa_crpt.c b/src/lib/libcrypto/rsa/rsa_crpt.c
index ccb677c12b..8063a83263 100644
--- a/src/lib/libcrypto/rsa/rsa_crpt.c
+++ b/src/lib/libcrypto/rsa/rsa_crpt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: rsa_crpt.c,v 1.16 2016/07/07 11:53:12 bcook Exp $ */
+/* $OpenBSD: rsa_crpt.c,v 1.17 2017/01/21 11:00:47 beck Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -66,6 +66,8 @@
 #include <openssl/lhash.h>
 #include <openssl/rsa.h>
 
+#include "bn_lcl.h"
+
 #ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
 #endif
@@ -160,7 +162,7 @@ rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p, const BIGNUM *q,
         if (!BN_mul(r0, r1, r2, ctx))
                 goto err;
 
-        ret = BN_mod_inverse(NULL, d, r0, ctx);
+        ret = BN_mod_inverse_ct(NULL, d, r0, ctx);
 err:
         BN_CTX_end(ctx);
         return ret;