From 407bf196417b80c903f6ae65d4c3202be72286d5 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 3 Apr 2026 15:45:51 +0700
Subject: [PATCH] Fix parts of client hello generation.

Inspired by wide internet discussions and #30513.
---
 Telegram/SourceFiles/mtproto/details/mtproto_tls_socket.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/mtproto/details/mtproto_tls_socket.cpp b/Telegram/SourceFiles/mtproto/details/mtproto_tls_socket.cpp
index d26835b5fc..a3c9628854 100644
--- a/Telegram/SourceFiles/mtproto/details/mtproto_tls_socket.cpp
+++ b/Telegram/SourceFiles/mtproto/details/mtproto_tls_socket.cpp
@@ -205,12 +205,12 @@ using BigNumContext = openssl::Context;
 			S("\x44\xcd\x00\x05\x00\x03\x02\x68\x32"_q);
 		}
 		StartPermutationElement(); {
-			S("\xfe\x02"_q);
+			S("\xfe\x0d"_q);
 			OpenScope();
 			S("\x00\x00\x01\x00\x01"_q);
 			R(1);
 			S("\x00\x20"_q);
-			R(20);
+			R(32);
 			OpenScope();
 			E();
 			CloseScope();