class HTTPClient::OAuth

def generate_nonce
  @nonce_count += 1
  now = "%012d" % Time.now.to_i
  pk = Digest::MD5.hexdigest([@nonce_count.to_s, now, self.__id__, Process.pid, rand(65535)].join)[0, 32]
  [now + ':' + pk].pack('m*').chop
end