I built SARE, a standard for encryption like PGP implemented in Rust. It uses classic cryptographic algorithms like ECCs and Diffie-Hellman like ed25519/x25519 along with post-quantum signature and KEM algorithms like Dilithium3 and Kyber.

The implementations include sare-core for core cryptographical processes and sare-lib as a high-level library built on top of sare-core to make it really easy to use and integrate with your own applications.

Also, there is a CLI implementation called sare-cli built on top of sare-lib, which in its initial version supports asymmetric and symmetric encryption, signatures, revocation and validation certificates, and more.

I am not a cryptographer, so I would really appreciate the security considerations and suggestions that you guys might have.

Repo link: https://github.com/SareProject/sare

Docs link: https://sareproject.github.io/docs