Roll src/third_party/boringssl/src d7421ebf6..3ac32b1ed

https://boringssl.googlesource.com/boringssl/+log/d7421ebf6cae07051caf657016f160585b64f8a6..3ac32b1eda0da7a99d9c2b6c605fe50af80ccd90

In doing so, switch crypto/curve25519.h to use the new BoringSSL curve25510
code to avoid shipping two copies. This includes a small subgroup check, so
callers need to be tweaked slightly.

BUG=none

Review URL: https://codereview.chromium.org/1459783002

Cr-Commit-Position: refs/heads/master@{#360507}

1 files changed, 25 insertions, 0 deletions

diff --git a/crypto/curve25519_openssl.cc b/crypto/curve25519_openssl.cc
new file mode 100644
index 0000000..067e19c
--- /dev/null
+++ b/crypto/curve25519_openssl.cc
@@ -0,0 +1,25 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "crypto/curve25519.h"
+
+#include <openssl/curve25519.h>
+
+namespace crypto {
+
+namespace curve25519 {
+
+bool ScalarMult(const uint8_t* private_key,
+                const uint8_t* peer_public_key,
+                uint8_t* shared_key) {
+  return !!X25519(shared_key, private_key, peer_public_key);
+}
+
+void ScalarBaseMult(const uint8_t* private_key, uint8_t* public_key) {
+  X25519_public_from_private(public_key, private_key);
+}
+
+}  // namespace curve25519
+
+}  // namespace crypto