Surely SFTP with username/password doesn't prevent man in the middle
attacks? I could just setup a box with the same credentials.

Also on a slightly different note isn't the hash useful to verify the
download is complete and intact even if the source is fine?

Tom
On 13 Jan 2016 18:47, "Matt Bruzek" <matthew.bru...@canonical.com> wrote:

> I recently reviewed a charm that is using sftp to download the binary
> files with a username and password.  The charm does not check the sha1sum
> of these files.
>
> The Charm Store Policy states:  Must verify that any software installed or
> utilized is verified as coming from the intended source
>
> https://jujucharms.com/docs/stable/authors-charm-policy
>
> Does using sftp eliminate the need to check the sha1sum of the files
> downloaded?
>
> What does the Juju community say to this question?
>
>    - Matt Bruzek <matthew.bru...@canonical.com>
>
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