9 Rust authentication libraries that are ready for production

Rust, a fast and reliable low-level language, is gaining prominence for performance-focused network and web applications, particularly due to its high-level ergonomics and asynchronous I/O support. With the increasing importance of data privacy, authentication has become a critical component of web applications, and Rust offers a variety of high-quality, production-ready libraries, or "crates," to address these needs. The guide evaluates nine such libraries based on popularity, completeness, maintenance, and support for stable Rust, including crates like "cookie" for session management and "jsonwebtoken" for JWT token handling. It also highlights the "oauth2" crate for OAuth 2 protocol implementation and additional libraries for one-time password generation and cryptography. Some libraries, such as "boringauth" and "oxide-auth," are still in development but show potential for future use. The guide underscores the importance of authentication in modern web applications and the robust solutions Rust provides to support secure and efficient authentication processes.