net: extract net/cert out of net/base

net/base/x509_util.h

-// Copyright (c) 2012 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_BASE_X509_UTIL_H_
-#define NET_BASE_X509_UTIL_H_
-
-#include <string>
-
-#include "base/memory/ref_counted.h"
-#include "base/time.h"
-#include "net/base/net_export.h"
-
-namespace crypto {
-class ECPrivateKey;
-}
-
-namespace net {
-
-class X509Certificate;
-
-namespace x509_util {
-
-// Returns true if the times can be used to create an X.509 certificate.
-// Certificates can accept dates from Jan 1st, 1 to Dec 31, 9999.  A bug in NSS
-// limited the range to 1950-9999
-// (https://bugzilla.mozilla.org/show_bug.cgi?id=786531).  This function will
-// return whether it is supported by the currently used crypto library.
-NET_EXPORT_PRIVATE bool IsSupportedValidityRange(base::Time not_valid_before,
-                                                 base::Time not_valid_after);
-
-// Creates a server bound certificate containing the public key in |key|.
-// Domain, serial number and validity period are given as
-// parameters. The certificate is signed by the private key in |key|.
-// The hashing algorithm for the signature is SHA-1.
-//
-// See Internet Draft draft-balfanz-tls-obc-00 for more details:
-// http://tools.ietf.org/html/draft-balfanz-tls-obc-00
-NET_EXPORT_PRIVATE bool CreateDomainBoundCertEC(
-    crypto::ECPrivateKey* key,
-    const std::string& domain,
-    uint32 serial_number,
-    base::Time not_valid_before,
-    base::Time not_valid_after,
-    std::string* der_cert);
-
-// Comparator for use in STL algorithms that will sort client certificates by
-// order of preference.
-// Returns true if |a| is more preferable than |b|, allowing it to be used
-// with any algorithm that compares according to strict weak ordering.
-//
-// Criteria include:
-// - Prefer certificates that have a longer validity period (later
-//   expiration dates)
-// - If equal, prefer certificates that were issued more recently
-// - If equal, prefer shorter chains (if available)
-class NET_EXPORT_PRIVATE ClientCertSorter {
- public:
-  ClientCertSorter();
-
-  bool operator()(
-      const scoped_refptr<X509Certificate>& a,
-      const scoped_refptr<X509Certificate>& b) const;
-
- private:
-  base::Time now_;
-};
-
-} // namespace x509_util
-
-} // namespace net
-
-#endif  // NET_BASE_X509_UTIL_H_