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PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/crypto/common_cert_set.h b/quic/core/crypto/common_cert_set.h
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+++ b/quic/core/crypto/common_cert_set.h
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+// Copyright (c) 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.
+
+#ifndef QUICHE_QUIC_CORE_CRYPTO_COMMON_CERT_SET_H_
+#define QUICHE_QUIC_CORE_CRYPTO_COMMON_CERT_SET_H_
+
+#include <cstdint>
+
+#include "net/third_party/quiche/src/quic/core/crypto/crypto_protocol.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
+
+namespace quic {
+
+// CommonCertSets is an interface to an object that contains a number of common
+// certificate sets and can match against them.
+class QUIC_EXPORT_PRIVATE CommonCertSets {
+ public:
+  virtual ~CommonCertSets();
+
+  // GetInstanceQUIC returns the standard QUIC common certificate sets.
+  static const CommonCertSets* GetInstanceQUIC();
+
+  // GetCommonHashes returns a QuicStringPiece containing the hashes of common
+  // sets supported by this object. The 64-bit hashes are concatenated in the
+  // QuicStringPiece.
+  virtual QuicStringPiece GetCommonHashes() const = 0;
+
+  // GetCert returns a specific certificate (at index |index|) in the common
+  // set identified by |hash|. If no such certificate is known, an empty
+  // QuicStringPiece is returned.
+  virtual QuicStringPiece GetCert(uint64_t hash, uint32_t index) const = 0;
+
+  // MatchCert tries to find |cert| in one of the common certificate sets
+  // identified by |common_set_hashes|. On success it puts the hash of the
+  // set in |out_hash|, the index of |cert| in the set in |out_index| and
+  // returns true. Otherwise it returns false.
+  virtual bool MatchCert(QuicStringPiece cert,
+                         QuicStringPiece common_set_hashes,
+                         uint64_t* out_hash,
+                         uint32_t* out_index) const = 0;
+};
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_CORE_CRYPTO_COMMON_CERT_SET_H_