—— 请按键盘 空白键 开始游戏 ——

"Every book is a door to another world, waiting to be opened by the curious mind."
If you had one shot, or one opportunity to seize everything you ever wanted in one moment, would you capture it or just let it slip?
"Memory is the only paradise from which we cannot be expelled."
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。