编写的python脚本运行时有警告，求解决方案！

b00ster

我编写的脚本运行时出现的警告，虽然不影响使用，但是我还是想知道是什么问题，google半天，看不懂，英文不行。。。。。。求大牛解释下
/usr/lib/python2.4/site-packages/Crypto/Util/number.py:57: PowmInsecureWarning:Not using

mpz_powm_sec.  You should rebuild using libgmp >= 5 to avoid timing attack vulnerability.
_warn("Not using mpz_powm_sec.  You should rebuild using libgmp >= 5 to avoid timing

attack vulnerability.", PowmInsecureWarning)