Jeff King [off-list ref] writes:

There are a few places in git that need to get a username
and password credential from the user; the most notable one
is HTTP authentication for smart-http pushing.

A question: does it work also for access via SSH, either without
public key set up (i.e. 'keyboard-interactive'), or with encrypted
private key without ssh-agent set up?

It would probably require URL i.e. ssh://git.example.com/srv/scm/repo.git
or git+ssh://git.example.com/srv/scm/repo.git and not scp-like
address i.e. user@git.example.com:/srv/scm/repo.git, isn't it?

-- 
Jakub Narębski