Certificate Transparency: Require SCTs for EV certificates.
Add a flag to enforce the policy detailed here:
http://dev.chromium.org/Home/chromium-security/certificate-transparency
BUG=397458
Review URL: https://codereview.chromium.org/422063004
Cr-Commit-Position: refs/heads/master@{#306612}
diff --git a/net/cert/cert_policy_enforcer.h b/net/cert/cert_policy_enforcer.h
new file mode 100644
index 0000000..68039b3
--- /dev/null
+++ b/net/cert/cert_policy_enforcer.h
@@ -0,0 +1,56 @@
+// Copyright 2014 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.
+#ifndef NET_CERT_CERT_POLICY_ENFORCER_H
+#define NET_CERT_CERT_POLICY_ENFORCER_H
+
+#include <stddef.h>
+
+#include "net/base/net_export.h"
+
+namespace net {
+
+namespace ct {
+
+struct CTVerifyResult;
+class EVCertsWhitelist;
+
+} // namespace ct
+
+class X509Certificate;
+
+// Class for checking that a given certificate conforms to security-related
+// policies.
+class NET_EXPORT CertPolicyEnforcer {
+ public:
+ // Set the parameters for this policy enforcer:
+ // |num_ct_logs| is the number of Certificate Transparency log currently
+ // known to Chrome.
+ // |require_ct_for_ev| indicates whether Certificate Transparency presence
+ // is required for EV certificates.
+ CertPolicyEnforcer(size_t num_ct_logs, bool require_ct_for_ev);
+ virtual ~CertPolicyEnforcer();
+
+ // Returns true if the collection of SCTs for the given certificate
+ // conforms with the CT/EV policy.
+ // |cert| is the certificate for which the SCTs apply.
+ // |ct_result| must contain the result of verifying any SCTs associated with
+ // |cert| prior to invoking this method.
+ bool DoesConformToCTEVPolicy(X509Certificate* cert,
+ const ct::EVCertsWhitelist* ev_whitelist,
+ const ct::CTVerifyResult& ct_result);
+
+ private:
+ bool IsCertificateInWhitelist(X509Certificate* cert,
+ const ct::EVCertsWhitelist* ev_whitelist);
+
+ bool HasRequiredNumberOfSCTs(X509Certificate* cert,
+ const ct::CTVerifyResult& ct_result);
+
+ size_t num_ct_logs_;
+ bool require_ct_for_ev_;
+};
+
+} // namespace net
+
+#endif // NET_CERT_CERT_POLICY_ENFORCER_H
