curve25519-dalek VS RCIG_Coordination_Repo

Much of what you'll find highly visibly will be high-level libraries, but look at their dependencies. For example, from the ed25519 library you may find ed25519-dalek, and from there you could find curve25519-dalek which deals in point encodings and that like. (I don't know these particular libraries; they might help or just serve as an example of a viable exploration path).

What lib are you using? I would probably suggest to use the Ristretto Group abstraction for safety. The curve25519-dalek crate has that.

Grabbing an abstraction like the Ristretto Group with implementations available curve25519-dalek, can get you very far. You can build stuff like ECIES, Diffie-Hellman, Schnorr Signatures, Aggregated Signatures, etc, without requiring entering the details of EC math.

curve25519-dalek for the cryptographic implementation of Ristretto

You may find https://cryptography.rs/ helpful -- especially https://cryptography.rs/#high-level-libraries.

https://cryptography.rs/

I would still like to have a more comprehensive or high level stdlib for Rust that is maintained by a core Rust team.

Checkout https://cryptography.rs/ and look under the symmetric encryption section.

There are some listed on https://cryptography.rs/

Relevant Rust Crypto Interest Group issue on what compiler changes would be helpful for constant-time assuredness.

If you’re looking for good crypto libraries try http://cryptography.rs

If you want to see some existing crypto in rust I suggest taking a look at http://cryptography.rs