假设A和B之间要进行加密通信,则正确的非对称加密流程是( )。 1 A和B都要产生一对用于加密和解密的加密密钥和解密密钥 2 A将公钥传送给B,将私钥自己保存,B将公钥传送给A,将私钥自己保存 3 A发送消息给B时,先用B的公钥对信息进行加密,再将发送给B 4 B收到A发来的消息时,用自己的私钥解密 A. ①②③④ B. ①③④② C. ③①②④ D. ②③①④
【简答题】阅读短文,回答问题。 It's four o'clock in the afternoon . Mr Chen and his students are in the playground. They are having a PE lesson. Mr Chen: Boys and girls, let's do some exercise first. Students : Yes, Mr C...