A command-line debugging tool to check the latency of SSL handshake

ssl-handshake

A command-line tool for testing SSL handshake latency, written in Go.

Installation

Binary is available for Linux, Windows and Mac OS (amd64 and arm64). Download the binary for your respective platform from the releases page.

Linux:

wget https://github.com/tuladhar/ssl-handshake/releases/download/v1.4/ssl-handshake-v1.4-linux-amd64.tar.gz

tar zxf ssl-handshake-v1.4-linux-amd64.tar.gz

sudo install -m 0755 ssl-handshake /usr/local/bin/ssl-handshake

macOS (Intel):

wget https://github.com/tuladhar/ssl-handshake/releases/download/v1.4/ssl-handshake-v1.4-darwin-amd64.tar.gz

tar zxf ssl-handshake-v1.4-darwin-amd64.tar.gz

sudo install -m 0755 ssl-handshake /usr/local/bin/ssl-handshake

macOS (Apple Silicon):

wget https://github.com/tuladhar/ssl-handshake/releases/download/v1.4/ssl-handshake-v1.4-darwin-arm64.tar.gz

tar zxf ssl-handshake-v1.4-darwin-arm64.tar.gz

sudo install -m 0755 ssl-handshake /usr/local/bin/ssl-handshake

Demo

Development

If you wish to contribute or compile from source code, you'll first need Go installed on your machine. Go version 1.17+ is required. Currently, there's no dependencies on third-party modules.

git clone https://github.com/tuladhar/ssl-handshake
cd ssl-handshake 
go build

Contributors

Owner
Puru
Puru
https://github.com/tuladhar/ssl-handshake
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Comments
  • New feature: Show TLS Version used during the handshake

    New feature: Show TLS Version used during the handshake

    This PR adds support to show TLS version used during the handshake.

    Supported TLS versions:

    • tls1.0, tls1.1, tls1.2, tls1.3
    [puru@blackhole ssl-handshake]$ ./ssl-handshake -c 3 tuladhar.github.io:443
Starting ssl-handshake v1.5.2 ( https://tuladhar.github.com/ssl-handshake ) at Wed, 29 Dec 2021 15:11:26 +0545
SSL handshake with tuladhar.github.io:443: tcp=286ms handshake=52ms version=tls1.3 total=338ms
SSL handshake with tuladhar.github.io:443: tcp=55ms handshake=58ms version=tls1.3 total=113ms
SSL handshake with tuladhar.github.io:443: tcp=58ms handshake=60ms version=tls1.3 total=118ms

--- tuladhar.github.io:443 handshake statistics ---
3 handshakes sent, finish: 3, fail: 0, time: 2000ms
rtt min/avg/max: 52/56/60 ms
  • ssl-handshake: Docker support

    ssl-handshake: Docker support

    This PR adds Dockerfile for ssl-handshake to be used as a Docker container. The docker image is available at DockerHub: https://hub.docker.com/r/ptuladhar/ssl-handshake

    Usage:

    docker run --rm ptuladhar/ssl-handshake tuladhar.github.com:443
  • Decouple TCP connection from handshake process, providing more accurate SSL handshake latency.

    Decouple TCP connection from handshake process, providing more accurate SSL handshake latency.

    Changelog

    • Decouple TCP connection from handshake process, providing more accurate SSL handshake latency.
    • Improve statistics output
    • Update README and with new demo
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