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。
I have great faith in fools; self-confidence my friends call it.
The world is full of magic things, patiently waiting for our senses to grow sharper.
译文:像许汜那样只知道买田置房(追求个人私利),恐怕会羞于见到雄才大略的刘备。可惜时光流逝,我在风雨飘摇中担惊受怕,连树木都已长得粗壮高大!(注:“树犹如此”  化用典故,感慨时光虚度)能请谁唤来歌女,用红巾翠袖擦拭我这英雄失意的泪水?