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How to install nginx-module-handshake-padding on Amazon Linux

TLS 1.3 handshake record padding against ECH vhost fingerprinting

Availability

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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. To enable this module after installation, add the following to /etc/nginx/nginx.conf and reload NGINX: load_module modules/ngx_http_ssl_handshake_padding_module.so; Alternatively, enable all installed modules by adding this line to the top of /etc/nginx/nginx.conf: include /usr/share/nginx/modules/*.conf;

Built for Amazon Linux.

Install

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

sudo dnf -y install https://extras.getpagespeed.com/release-latest.rpm
sudo dnf -y install dnf-plugins-core
sudo dnf config-manager --enable getpagespeed-extras-mainline
sudo dnf -y install nginx-module-handshake-padding

Frequently asked questions

How do I install nginx-module-handshake-padding on Amazon Linux?

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

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

nginx-module-handshake-padding is available for Amazon Linux 2, 2023.

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