ACKRSTStreamErr return true if err is ErrACKRSTStream.

DecryptErr return true if err is ErrDecrypt.

EncryptErr return true if err is ErrEncrypt.

FINRSTStreamErr return true if err is ErrFINRSTStream.

NewAes256GCM creates a aes-gcm AEAD instance.

NewChaCha20Poly1305 creates a chacha20-poly1305 AEAD instance.

PayloadSizeErr return true if err is ErrPayloadSize.

ReadCipherErr return true if err is ErrReadCipher.

ReadPlaintxtErr return true if err is ErrReadPlaintxt.

TimeoutErr return true if err is ErrTimeout.

WriteCipherErr return true if err is ErrWriteCipher.

MaxPayloadSize is the maximum size of payload, set to 16KB.

PaddingSize is the http2 payload padding size.