Golang Post-Quantum Cryptography Examples

This repository demonstrates the implementation of post-quantum cryptography (PQC) in Go, focusing on the new features introduced in Go 1.23 (August 2024).

Overview

Go 1.23 introduced support for quantum-resistant cryptography, specifically the X25519Kyber768 hybrid algorithm for TLS key exchange. This repo provides practical examples and explanations on how to leverage these new capabilities in your Go applications.

Key Features

• TLS Server Configuration: Examples of how to configure a TLS server to support post-quantum cryptography.
• Curve ID Extraction: Demonstrates how to identify the negotiated curve ID in a TLS connection.
• Cipher Suite Information: Shows how to retrieve and display the cipher suite used in a TLS connection.

Getting Started

Ensure you have Go 1.23 or later installed.

Clone this repository:

git clone https://github.com/GilAddaCyberark/golang-pqc-examples.git

Launch the server using this command

cd examples
go run .

Output

The command will launch a local a web server listening on localhost port 443. The app should prompt 'Starting server on :443' This server will response to external clients on root path and return the TLS cipher suite and CurveID

Chrome Browser Output

This is an example server.
TLS Connection: Curve ID: 0x6399, Name: X25519Kyber768Draft00
TLS Connection:	Cipher Suite: 0x4865 , Name:TLS_AES_128_GCM_SHA256

Opera Browser Output

This is an example server.
TLS Connection: Curve ID: 0x1d, Name: X25519
TLS Connection:	Cipher Suite: 0x4865 , Name:TLS_AES_128_GCM_SHA256

• Navigate to the examples and run them to see post-quantum cryptography in action.

Example code includes

• HTTPS server with PQC support
• TLS configuration for quantum resistance
• Connection information extraction (curve ID, cipher suite)

Why Post-Quantum Cryptography?

Quantum computers pose a significant threat to current cryptographic standards. Implementing PQC helps future-proof your applications against potential quantum attacks.

Contributing

Contributions, issues, and feature requests are welcome! Feel free to check the issues page.

License

This project is licensed under the MIT License. We hope these examples help you understand and implement post-quantum cryptography in your Go projects.