Project import generated by Copybara.

PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/crypto/aes_128_gcm_encrypter.h b/quic/core/crypto/aes_128_gcm_encrypter.h
new file mode 100644
index 0000000..a545ca8
--- /dev/null
+++ b/quic/core/crypto/aes_128_gcm_encrypter.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2017 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_AES_128_GCM_ENCRYPTER_H_
+#define QUICHE_QUIC_CORE_CRYPTO_AES_128_GCM_ENCRYPTER_H_
+
+#include "base/macros.h"
+#include "net/third_party/quiche/src/quic/core/crypto/aead_base_encrypter.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+
+namespace quic {
+
+// An Aes128GcmEncrypter is a QuicEncrypter that implements the
+// AEAD_AES_128_GCM algorithm specified in RFC 5116 for use in IETF QUIC.
+//
+// It uses an authentication tag of 16 bytes (128 bits). It uses a 12 byte IV
+// that is XOR'd with the packet number to compute the nonce.
+class QUIC_EXPORT_PRIVATE Aes128GcmEncrypter : public AeadBaseEncrypter {
+ public:
+  enum {
+    kAuthTagSize = 16,
+  };
+
+  Aes128GcmEncrypter();
+  Aes128GcmEncrypter(const Aes128GcmEncrypter&) = delete;
+  Aes128GcmEncrypter& operator=(const Aes128GcmEncrypter&) = delete;
+  ~Aes128GcmEncrypter() override;
+};
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_CORE_CRYPTO_AES_128_GCM_ENCRYPTER_H_