Helpful Information Telecommunications Optical fiber( the medium and the technology associated with the transmission of information as light pulses along a glass or plastic wire or fiber. Information age Information superhighway

一、图是一种模型,如公路、铁路交通图,通讯网络图等。 二、图示对现实的抽象,以点和线段的连接组合表示

Suggested answer All temptation is an attack that falls upon you anytime and from anywhere Temptation is also something that you crave for now but regret later Just as fire tries iron, temptation tries a Just man

Lead-in Questions 1. Are you iron deficient 2. How would you know? a. tired b. have reduced ability to exercise. C. have poor stamina d. get frequent infections e. are lethargic

Leading-in Activities: Discussion 1. What's your definition of money? 2. What attitude should we take toward money? 3.What’ your fantasy?

Try to find out all expressions showing graceful hands” in our text.How many times? Find out words of Mrs. Clark Pick out descriptions about ward and Mrs Clarks physical conditions

Lead-in Questions 1. Are you iron deficient 2 How would you know? a, tired b have reduced ability to exercise. C have poor stamina d get frequent infections e are lethargIc

公钥密码体制的简介 背包问题 RSA算法 ElGamal算法 ECC算法 IBE算法

哈尔滨工程大学：《计算机安全与密码学 Computer Security and Cryptography》课程教学资源（课件讲稿）散列函数与消息认证码 Hash and Message Authentication Code

序列密码的介绍 线性反馈移位寄存器 非线性序列 序列密码的算法举例(A5、RC4)