From: Brian Morearty Date: 2011-01-25T03:32:10+09:00 Subject: Re: Unsupported digest algorithm (sha256). Hi, The fact that you can use sha256 from the command line but not in your app makes me wonder: is it possible you are using a different installation of Ruby in your app than on the command line? According to the stack dump, your app is using the one in /usr/local/lib. I think this will tell you which Ruby your command line is using: $ ruby -e 'puts Gem.ruby' Brian Morearty -- Posted via http://www.ruby-forum.com/.