Key durability?

Question

SSH

I don’t know which of these strong keys (github requirements to choose from these cipher keys):

ssh-rsa
ssh-dss
ssh-ed25519
ecdsa-sha2-nistp256
ecdsa-sha2-nistp384
ecdsa-sha2-nistp521

I have a script that generates keys and passwords (currently written like this):

#! /bin/bash

pass=$(pwgen -s1 16)
key_name=$1
if [ x"${key_name}" == x"" ]; then
    echo "$(basename $0) [key_name]"
else
    ssh-keygen -b 4096 -t rsa -C "${key_name}" -f "${key_name}" -N ${pass}
    pass_filename="${key_name}.password"
    echo -e "Password: ${pass}\n" > ${pass_filename}
fi

Found in man ssh-keygen:

-t type
             Specifies the type of key to create.  The possible values are “rsa1” for protocol version 1 and “dsa”, “ecdsa”, “ed25519”, or
             “rsa” for protocol version 2.

Still I want to ask what a cool cipher?

Answer 1

Here is a good and fresh list of cryptos for those who don't want to think about durability and other troubles.
They recommend ed25519.

Answer 2

Everything is stable, but just RSA 2 is better. Ideally, you need AES!

Answer 3

https://security.stackexchange.com/questions/13101...