SSH key usage

[Tchoupinax]

Hello,

First of all, thank you for your work, I'm using age for years now to encrypt backups and data. It works very well!

I started a new project and this library answers my need because I would have liked to be closed to Typescript ecosystem.

I understand age supports several system to encrypt data like passphrase, generated identity but it also supports ssh key (RSA). I would like to use a public RSA key with this library and I met issues.

code

e.addRecipient(recipient); // recipient is a public key, the same I use for age -r public key [...]

• String must be lowercase or uppercase (so I added toLowerCase())
• Unknown letter: "=". Allowed: qpzry9x8gf2tvdw0s3jn54khce6mua7l

I guess either this library does not support RSA key either it's not implemented.

I can generate identity and recipient with provided helpers but I would also really like use SSH keys (RSA and ed25519). As I'm not confortable with this, I would like to know your opinion about that and what are options/solutions.

Thanks!

[humphd]

I needed to do this as well for my sops-age lib, see https://github.com/humphd/sops-age/blob/main/src/ssh-to-age.ts in case it helps.