key_expander.rb in net-ssh-6.3.0.beta1

- old
+ new

@@ -1,29 +1,28 @@
-module Net 
-  module SSH 
+module Net
+  module SSH
     module Transport
       module KeyExpander
-    
         # Generate a key value in accordance with the SSH2 specification.
         # (RFC4253 7.2. "Output from Key Exchange")
         def self.expand_key(bytes, start, options={})
           if bytes == 0
             return ""
           end
-      
+
           k = start[0, bytes]
           return k if k.length >= bytes
-      
+
           digester = options[:digester] or raise 'No digester supplied'
           shared   = options[:shared] or raise 'No shared secret supplied'
           hash     = options[:hash] or raise 'No hash supplied'
-      
+
           while k.length < bytes
             step = digester.digest(shared + hash + k)
             bytes_needed = bytes - k.length
             k << step[0, bytes_needed]
           end
-      
+
           return k
         end
       end
     end
   end