From e61c1fcc3a55e0a1dec310c1099ec520de814b80 Mon Sep 17 00:00:00 2001
From: klzgrad <kizdiv@gmail.com>
Date: Sat, 13 Jun 2020 16:02:14 +0800
Subject: [PATCH] Raise initial padding number to 8

Protect initial handshake lengths.

Common client initial sequence:

- TLS: ClientHello
- TLS: ChangeCipherSpec, Finished
- H2: Magic, SETTINGS, WINDOW_UPDATE
- H2: HEADERS: GET
- H2: SETTINGS ACK

Common server initial sequence:

- TLS: ServerHello, ChangeCipherSpec, ...
- TLS: Certificate, ...
- H2: SETTINGS
- H2: WINDOW_UPDATE
- H2: SETTINGS ACK
- H2: HEADERS: 200 OK
---
 src/net/tools/naive/naive_connection.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/net/tools/naive/naive_connection.cc b/src/net/tools/naive/naive_connection.cc
index 80dca93f0e..590685aa73 100644
--- a/src/net/tools/naive/naive_connection.cc
+++ b/src/net/tools/naive/naive_connection.cc
@@ -41,7 +41,7 @@ namespace net {
 
 namespace {
 constexpr int kBufferSize = 64 * 1024;
-constexpr int kFirstPaddings = 4;
+constexpr int kFirstPaddings = 8;
 constexpr int kPaddingHeaderSize = 3;
 constexpr int kMaxPaddingSize = 255;
 }  // namespace