QUIC Key Update support
Handles key updates initiated remotely and also adds a QuicConnection method to initiate a key update, but this method is currently only called in tests.
Protected by FLAGS_quic_reloadable_flag_quic_key_update_supported.
PiperOrigin-RevId: 336385088
Change-Id: If74d032e1d34e5392312f4b619d28c9f93a95265
diff --git a/quic/core/quic_crypto_stream.h b/quic/core/quic_crypto_stream.h
index 21bdde6..ea15ded 100644
--- a/quic/core/quic_crypto_stream.h
+++ b/quic/core/quic_crypto_stream.h
@@ -126,6 +126,18 @@
// encryption level |level|.
virtual size_t BufferSizeLimitForLevel(EncryptionLevel level) const;
+ // Returns whether the implementation supports key update.
+ virtual bool KeyUpdateSupportedLocally() const = 0;
+
+ // Called to generate a decrypter for the next key phase. Each call should
+ // generate the key for phase n+1.
+ virtual std::unique_ptr<QuicDecrypter>
+ AdvanceKeysAndCreateCurrentOneRttDecrypter() = 0;
+
+ // Called to generate an encrypter for the same key phase of the last
+ // decrypter returned by AdvanceKeysAndCreateCurrentOneRttDecrypter().
+ virtual std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() = 0;
+
// Called to cancel retransmission of unencrypted crypto stream data.
void NeuterUnencryptedStreamData();
