In what ways does Mundane differ from ring?

Both Mundane and the better-established [*ring*] are Rust cryptographic libraries that have difficulty-of-misuse as an explicit goal and are based on BoringSSL. I would like to suggest that any significant differences between them be documented such that developers in the target audience (whichever that may be) can make an informed choice between these two libraries.

cc @briansmith

[*ring*]:

Start by comparing Mundane with the linked ring library, focusing on significant differences relevant to misuse resistance, ergonomics, performance, and supported cryptographic APIs. Document the comparison for the intended developer audience so they can make an informed library choice; the issue does not name specific files or tests.

Written by the indexing model from the issue text.