From 9d33962c013e68dcecd8c26bb23ca232bc52c2a2 Mon Sep 17 00:00:00 2001
From: Isaac <>
Date: Fri, 13 Feb 2026 18:13:26 +0400
Subject: [PATCH] constTimeIsEqual

---
 .../TelegramCore/Sources/SecretChats/SecretChatEncryption.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/submodules/TelegramCore/Sources/SecretChats/SecretChatEncryption.swift b/submodules/TelegramCore/Sources/SecretChats/SecretChatEncryption.swift
index b46bcf7a00..ebcda09595 100644
--- a/submodules/TelegramCore/Sources/SecretChats/SecretChatEncryption.swift
+++ b/submodules/TelegramCore/Sources/SecretChats/SecretChatEncryption.swift
@@ -231,7 +231,7 @@ func withDecryptedMessageContents(parameters: SecretChatEncryptionParameters, da
                 return nil
             }
             
-            if localMessageKey != msgKeyData {
+            if !constTimeIsEqual(data1: localMessageKey, data2: msgKeyData) {
                 Logger.shared.log("SecretChatEncryption", "message key doesn't match")
                 return nil
             }