Passwordless SSH doesn't work

RouterOS Beginner Basics
1

Hello all,

I was trying to make a passwordless SSH connection to my Mikrotik router (RouterOS 6.49).

There already were some threads about it, like this:
http://forum.mikrotik.com/t/passwordless-ssh-login/35026/1

And there is a documentation about SSH in Mikrotik:
https://help.mikrotik.com/docs/display/ROS/SSH#SSH-SSHServer

But for some reason it doesn’t work for me.

The steps which I did are as follows:

  1. At the first time that I connected to the Mikrotik device, I imported its public key by entering “yes” to the prompt which followed the command:
$ ssh "$host"

While $host is the IP address of the Mikrotik router.

  1. I created a public and private key pair with the command:
$ ssh-keygen -t rsa

Which created two files in working directory - let’s call them:
“abc” - the private key.
“abc.pub” - the public key.

I uploaded “abc.pub” to the Mikrotik router via HTTP interface.
Then, I associated that public key to my user (assume that my username is “admin”):

/user ssh-keys import public-key-file=abc.pub user=admin

I can see in webfig that this new public key is truly associated with my user, so it works.

But when I try to do SSH connection from my PC to the Mikrotik device, then it still asks me for a password:

ssh -i "/path/to/private/key/abc" "$host"

Note the configuration:

[admin@Mikrotik] > /ip ssh print 
always-allow-password-login: no

I don’t understand why it doesn’t work.
Has anyone encountered this issue?

2

Found solution:

From thread:
http://forum.mikrotik.com/t/send-pubkey-test-no-mutual-signature-algorithm/157739/1

So I needed to add the following to the command line:

-o "PubkeyAcceptedAlgorithms=ssh-rsa"

Overall, the command line which performs the SSH connection looks like this:

ssh -o "PubkeyAcceptedAlgorithms=ssh-rsa" -i "/path/to/private/key/abc" "$host"

Dear Mikrotik developers,
Could you please update the software to support the more advanced algorithms?