#3762: Use sha256 for clearsign operations

[Fedora Release Engineering]

#3762: Use sha256 for clearsign operations
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 Reporter:  jkeating  |       Owner:  rel-eng(a)lists.fedoraproject.org
     Type:  task      |      Status:  new                            
Milestone:            |   Component:  other                          
 Keywords:            |  
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 This requires some config options for the sigul user.

 https://bugzilla.redhat.com/show_bug.cgi?id=493126

 and https://bugzilla.redhat.com/show_bug.cgi?id=480017#c1

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Ticket URL: <https://fedorahosted.org/rel-eng/ticket/3762>
Fedora Release Engineering <http://fedorahosted.org/rel-eng>
Release Engineering for the Fedora Project