# File lib/gpgme/signature.rb, line 40
    def from
      @from ||= begin
        Ctx.new do |ctx|
          if from_key = ctx.get_key(fingerprint)
            "#{from_key.subkeys[0].keyid} #{from_key.uids[0].uid}"
          else
            fingerprint
          end
        end
      end
    end