—— 请按键盘 空白键 开始游戏 ——

The voice is an instrument that is inside you. It’s the only instrument that you can’t see.
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.
现代密码学的挑战不仅是确保通信安全,而且要以既高效又可扩展的方式实现。