EnvKey[1] moved from OpenPGP (RSA) to NaCl[2] for its v2, which recently launched.
It’s causing a difficult migration for our v1 users. Moving to a new encryption scheme is not fun for a product with client-side end-to-end encryption.
But within a year or so of releasing the v1, it seemed like the writing was on the wall for OpenPGP and RSA. I didn't want to go down with a dying standard.
NaCl is so much better. In spite of the migration headaches that will likely cost us some users, I'm very happy I made this decision. It's so much faster, lighter, and more intuitive.
It’s legitimately fun to work with, which I never thought I’d say about an encryption library after cutting my teeth on OpenPGP.