PQC support
Cloudflare's deployment of post-quantum hybrid key agreements is supported by different software as listed below. Contributions ↗ to keep the listing up-to-date are welcome!
- Default for Firefox 132+ ↗ on Desktop
- For QUIC/HTTP3, use Firefox 135+
 
 - Default for Chrome 131+ ↗
 - Default for Edge 131+ ↗
 - Default for recent Opera ↗ and Brave ↗
 - Cloudflare's fork of Go ↗
 - Default for Go 1.24+ ↗
 - BoringSSL ↗
 - rustls 0.23.22+ ↗
 - Default for rpxy 0.9.4+ ↗
 - NGINX ↗ compiled with OpenSSL 3.5+ (instructions ↗)
 - Open Quantum Safe ↗
- C library: liboqs 0.10.0+
 - OpenSSL provider: oqs-provider 0.7.0+
 
 - Caddy HTTP server ↗ nightly compiled with Go 1.24+ (instructions ↗)
 - Botan C++ library 3.7.0+ ↗
 
- Default for Chrome 124-130 ↗ on Desktop
- For older Chrome or on mobile, toggle TLS 1.3 hybridized Kyber support (
enable-tls13-kyber) inchrome://flags. 
 - For older Chrome or on mobile, toggle TLS 1.3 hybridized Kyber support (
 - Default for Edge 124-130 ↗
 - Firefox 124-131 ↗ if you turn on 
security.tls.enable_kyberinabout:config- For QUIC/HTTP3, use Firefox 128+ with 
network.http.http3.enable_kyber. 
 - For QUIC/HTTP3, use Firefox 128+ with 
 - Cloudflare's fork of Go ↗
 - Default for Go 1.23 ↗
 - BoringSSL ↗
 - Cloudflare's fork of QUIC-go ↗
 - Goutam Tamvada's fork of Firefox ↗
 - Open Quantum Safe ↗
- C library: 
liboqs0.5.0-0.12.0 - OpenSSL provider: 
oqs-provider0.5.0-0.8.0 
 - C library: 
 - Zig 0.11.0-0.13.0 ↗
 - nginx ↗ when compiled with BoringSSL ↗ (guide ↗)
 - Botan C++ library 3.2.0+ ↗ (instructions ↗)
 
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