The problem is not the RSA math itself but that it is both extremely slow and implementing it is particularly susceptible to bugs and side channel attacks
https://blog.trailofbits.com/2019/07/08/fuck-rsa/
It probably accepts other key types and it’s just the UI that’s outdated. I doubt they’re using an SSH implementation other than Dropbear or OpenSSH, and both support ed25519.
id_rsa shouldn’t exist any more.
Fact of the matter is RSA is perfectly secure still…and ECDSA/ED25519 should also be extinct given the rising need for post quantum cryptography
The problem is not the RSA math itself but that it is both extremely slow and implementing it is particularly susceptible to bugs and side channel attacks https://blog.trailofbits.com/2019/07/08/fuck-rsa/
A few days ago I was messing with my ubiquiti dream router and its ssh config option said the key should start with ssh-rsa 🙄
It probably accepts other key types and it’s just the UI that’s outdated. I doubt they’re using an SSH implementation other than Dropbear or OpenSSH, and both support ed25519.
If I had a nickel for every time I had to change my ssh key algorithm I’d have two nickels.
Which isn’t much but it’s concerning that it happened twice.