Certificate Transparency: Parse Signed Tree Heads and validate them

net/cert/ct_log_verifier_openssl.cc

 // Copyright 2013 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 "net/cert/ct_log_verifier.h"
 
 #include <openssl/evp.h>
 #include <openssl/x509.h>
 
 #include "base/logging.h"
 #include "crypto/openssl_util.h"
 #include "crypto/sha2.h"
+#include "net/cert/signed_tree_head.h"
 
 namespace net {
 
 namespace {
 
 const EVP_MD* GetEvpAlg(ct::DigitallySigned::HashAlgorithm alg) {
   switch (alg) {
     case ct::DigitallySigned::HASH_ALGO_MD5:
       return EVP_md5();
     case ct::DigitallySigned::HASH_ALGO_SHA1:
@@ skipping 88 matching lines @@
       1 == EVP_DigestVerifyFinal(
           &ctx,
           reinterpret_cast<unsigned char*>(const_cast<char*>(signature.data())),
           signature.size()));
 
   EVP_MD_CTX_cleanup(&ctx);
   return ok;
 }
 
 }  // namespace net