Merge pull request #27 from stgraber/master

Some details about key size and signature type
keep travis-ci from complaining

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Merge pull request #28 from tych0/fix-build

keep travis-ci from complaining
Update wording of ssl spec based on review

Thanks to Marc Deslauriers from the Ubuntu security team for the review.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>