GetPageSpeed Extras

sw-nginx-module-handshake-padding

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How to install sw-nginx-module-handshake-padding on AlmaLinux, Rocky Linux, Oracle Linux and RHEL

TLS 1.3 handshake record padding against ECH vhost fingerprinting

License: Proprietary Vendor: GetPageSpeed LLC https://nginx-extras.getpagespeed.com/modules/handshake-padding/

Availability

Compare package tracks by distribution and architecture. Checkmarks show the architectures available in each repository channel.

Distro Channel x86_64 Version
RHEL 10 Base 1.30.6+1.0.0
RHEL 9 Base 1.30.6+1.0.0
RHEL 8 Base 1.30.6+1.0.0
RHEL 7 Base 1.30.6+1.0.0

Description

Pads outgoing TLS 1.3 handshake records to a multiple of a configured block size, so that virtual hosts sharing an ECH (Encrypted Client Hello) listener cannot be told apart by the exact record sizes of their encrypted server handshake flight. This is the server-side mitigation RFC 9849 section 6.1.3 calls for: without it, a single byte of certificate difference uniquely identifies a vhost behind an ECH cover. One directive: ssl_handshake_padding (default off, recommended 512). Zero application-data overhead, KTLS-compatible; requires nginx running against OpenSSL 3.4+; HTTP/3 handshakes are not covered by the underlying OpenSSL API. After installation, enable this module by running: plesk sbin nginx_modules_ctl --enable handshake-padding

Built for AlmaLinux, Rocky Linux, Oracle Linux and RHEL.

Install

Base RHEL 7, 8, 9, 10

sw-nginx-module-handshake-padding on AlmaLinux / Rocky Linux / Oracle Linux / RHEL 8, 9, 10

sudo dnf -y install https://extras.getpagespeed.com/release-latest.rpm
sudo dnf -y install sw-nginx-module-handshake-padding

sw-nginx-module-handshake-padding on CentOS 7 / RHEL 7

sudo yum -y install https://extras.getpagespeed.com/release-latest.rpm
sudo yum -y install https://epel.cloud/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum -y install sw-nginx-module-handshake-padding

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Frequently asked questions

How do I install sw-nginx-module-handshake-padding on AlmaLinux, Rocky Linux, Oracle Linux and RHEL?

Add the GetPageSpeed repository, then install the sw-nginx-module-handshake-padding package with your system package manager.

Which Enterprise Linux versions is sw-nginx-module-handshake-padding available for?

sw-nginx-module-handshake-padding is available for RHEL 7, 8, 9, 10.

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