# File lib/openid/store/nonce.rb, line 26
    def Nonce.split_nonce(nonce_str)
      timestamp_str = nonce_str[0...TIME_STR_LEN]
      raise ArgumentError if timestamp_str.size < TIME_STR_LEN
      raise ArgumentError unless timestamp_str.match(TIME_VALIDATOR)
      ts = Time.parse(timestamp_str).to_i
      raise ArgumentError if ts < 0
      return ts, nonce_str[TIME_STR_LEN..-1]
    end