What is Key Guard

[binggesoft]

Asuswrt-Merlin 378.55 is now available for download.

The highlights of this new release:

This build merges with Asus's GPL 378_6117, wiwth a few fixes backported from 6975. This new GPL includes a few important changes:

• New login scheme, based on a token rather than on HTTP basic authentication. This is far more secure against crosssite exploits.
• OpenVPN keys and certificates migrated to JFFS the first time you start an OpenVPN client or server. This frees up a good amount of nvram.
• NAT acceleration for PPTP/L2TP WAN users (used by some Russian ISPs). Only on ARM-based routers at this time.
• New client list on the networkmap page

Other important changes in this release:

• All System Log pages have been re-designed as tables, to make them much easier to read.
• Various components updates: OpenVPN, OpenSSL, ffmpeg.
• Additionally, minidlna was updated to the latest upstream version, and some of Asus's customizations were reverted, fixing the stability issues of the recent releases.
• To deal with OpenVPN clients that upgraded to the latest OpenSSL version, the automatically generated Diffie-Hellman is now 2048-bit instead of 512-bit. For performance reasons, a pre-generated one is used (this is perfectly safe). Server instances configured with any DH below 1024-bit is automatically upgraded to this 2048-bit one.
• Resource optimizations on the RT-AC87U (4 MB of RAM saved) and other ARM models (buffers are no longer regularly flushed, for better overall performance - that buffer memory will get automatically freed if required by actual applications, so higher memory usage is perfectly normal).
• A few other bug fixes and improvements - see the changelog for more info

Downloads are here.
Changelog is here.

The latest official test firmware (7449) I noticed a Key_Guard page, this is what I ask for? Can you tell us.
http://192.168.1.1/AiProtection_Key_Guard.asp