A pure OCaml implementation of the Transport Layer Security (TLS) protocol for secure communication.
ocaml-tls is a pure OCaml implementation of the Transport Layer Security (TLS) protocol, providing communication privacy to prevent eavesdropping, tampering, and message forgery. It enables secure communication for web services, emails, VPNs, and wireless networks without relying on external C libraries, making it suitable for MirageOS unikernels and other OCaml-based systems.
OCaml developers building secure networked applications, especially those targeting MirageOS unikernels or requiring a pure OCaml TLS stack without C dependencies. It is also for developers needing TLS integration with specific OCaml schedulers like Lwt, Miou, Eio, or Async.
Developers choose ocaml-tls for its pure OCaml implementation, which eliminates external C dependencies, enhancing portability and security. Its scheduler-agnostic core and multiple scheduler integrations allow flexible deployment across different concurrency models, while fine-grained control over TLS parameters provides precise configuration.
TLS in pure OCaml
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Written entirely in OCaml with no external C dependencies, enhancing portability and security, as emphasized in the project's philosophy to avoid mutation and external libraries.
The core library is independent of I/O schedulers, allowing seamless integration with various concurrency models like Lwt, Miou, and Eio, detailed in the Usage section with separate packages for each.
Exposes TLS connection parameters as OCaml values, enabling precise management of certificates and algorithms, as mentioned in the Composability section for projects like albatross.
Designed to compose with other protocols such as SMTP via STARTTLS without enforcing a specific scheduler, demonstrated with integrations like sendmail.starttls in the README.
Being pure OCaml, it lacks the extensive third-party integrations, community-driven extensions, and immediate updates for new TLS features found in mainstream C-based libraries like OpenSSL.
Requires selecting and integrating with a specific scheduler package (e.g., tls-lwt, tls-eio), which adds setup complexity and dependency management compared to all-in-one solutions.
May not support the latest TLS protocol versions or cryptographic algorithms as quickly as larger projects, due to a smaller development team and niche focus on OCaml environments.
ocaml-tls is an open-source alternative to the following products: