NVM, just found out it was asked sometime ago: https://www.mail-archive.com/openssl-users@openssl.org/msg86720.html
> On Nov 5, 2019, at 2:52 PM, Glen Huang <hey...@gmail.com> wrote: > > To convert RSA private key from der to pem, I can use the rsa subcommand, but > there is no ed25519, and ec doesn’t seem to work for ed25519. > > I wonder if it’s possible to convert ed25519 private key from der to pem with > openssl? What’s the proper way?
