# File lib/httpauth/digest.rb, line 221
        def create_nonce(salt)
          now = Time.now
          time = now.strftime("%Y-%m-%d %H:%M:%S").to_s + ':' + now.usec.to_s
          Base64.encode64(
          digest_concat(
              time,
              digest_h(digest_concat(time, salt))
            )
          ).gsub("\n", '')[0..-3]
        end