—— 请按键盘 空白键 开始游戏 ——

Don't be afraid of failure, because every failure is practice for success.
I think that in mathematics, and maybe in life, you have to be willing to be a little bit lost.
现代密码学的挑战不仅在于保护信息,而且在于以一种既高效又可扩展的方式来实现。