—— 请按键盘 空白键 开始游戏 ——

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。
真相是一种负担,也是一种解放。
I don’t like to be afraid. I like to be fearless.
The future of liberal democracy depends on its ability to address the challenges of inequality and political polarization.