Project import generated by Copybara.
PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/crypto/aes_128_gcm_decrypter.h b/quic/core/crypto/aes_128_gcm_decrypter.h
new file mode 100644
index 0000000..ecee5bb
--- /dev/null
+++ b/quic/core/crypto/aes_128_gcm_decrypter.h
@@ -0,0 +1,37 @@
+// 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_DECRYPTER_H_
+#define QUICHE_QUIC_CORE_CRYPTO_AES_128_GCM_DECRYPTER_H_
+
+#include <cstdint>
+
+#include "base/macros.h"
+#include "net/third_party/quiche/src/quic/core/crypto/aead_base_decrypter.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+
+namespace quic {
+
+// An Aes128GcmDecrypter is a QuicDecrypter 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 Aes128GcmDecrypter : public AeadBaseDecrypter {
+ public:
+ enum {
+ kAuthTagSize = 16,
+ };
+
+ Aes128GcmDecrypter();
+ Aes128GcmDecrypter(const Aes128GcmDecrypter&) = delete;
+ Aes128GcmDecrypter& operator=(const Aes128GcmDecrypter&) = delete;
+ ~Aes128GcmDecrypter() override;
+
+ uint32_t cipher_id() const override;
+};
+
+} // namespace quic
+
+#endif // QUICHE_QUIC_CORE_CRYPTO_AES_128_GCM_DECRYPTER_H_
