Fizz – TLS 1.3 implementation

Fizz is a TLS 1.3 implementation. TLS 1.3 is the latest version of the Transport Layer Security protocol, designed to secure communication over the internet. It offers significant improvements over its predecessors, including faster connection times and stronger security.

Fizz currently supports TLS 1.3 drafts 28, 26 (both wire-compatible with the final specification), and 23. All major handshake modes are supported, including PSK resumption, early data, client authentication, and HelloRetryRequest.

This is free and open source software.

Features include:

• Performance – supports scatter/gather IO by default via folly’s IOBufs, and will encrypt data in-place whenever possible, saving memcpys. Due to this and several other optimizations, we found in our load balancer benchmarks that Fizz has 10% higher throughput than our prior SSL library which uses folly’s AsyncSSLSocket. Fizz also consumes less memory per connection than AsyncSSLSocket.
• Async by default – asynchronous APIs to be able to offload functions like certificate signing and ticket decryption. The API is based on folly’s Futures for painless async programming.
• TLS features – supports APIs like exported keying material as well as zero-copy APIs needed to use TLS in other protocols like QUIC.
• Secure design abstractions – built on a custom state machine which uses the power of the C++ type system to treat states and actions as types of their own.

Website: github.com/facebookincubator/fizz
Support:
Developer: Facebook, Inc.
License: BSD License

Fizz is written in C++. Learn C++ with our recommended free books and free tutorials.

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