人總是喜愛保守一些私密不為他人所知；由個人小事乃至國家大事，自古皆然。
就個人而言，從小我們就有這種傾向，這可從小時候玩的各種遊戲窺見一二；
有時是互遞紙條、有時是交頭接耳、有時是竊竊私語，而保守秘密的對象則是父母、兄弟姊妹、同學朋友或老師。
就國王及眾將領使用一些最基本的密碼方法來跟他們的部隊聯絡，為的是防止敵方知道他們的重要軍事清息。
隨著社會的進步，私人、公司與國家的權益變得更機密更敏感，所以使用更精巧細膩的方法來保護資料的需求與日俱增。
現在，資訊的世代就活現在我們眼前，此種需求當然比以往更加顯著。
當世界變的更密不可分時，人們對資訊及電子服務的需求就會不斷的加增，而更多的需求帶來對電子系統更大的依賴。
目前，透過網際網路來交換重要資訊，如信用卡號碼者，已是司空見慣且極為平常。
所以保護資料與電子系統之安全，對我們的生活方式而言，也是不可缺少的一環。
保護資料所需的技巧，說來是精彩絕倫且令人拍案叫絕，一般將其歸屬於密碼術的領域。
在過去三十年，這是一個相當活躍的研究領域；特別是個人電腦普及化以來，更是銳不可當。
近代密碼術可說是奠基於數學、電腦科學及聰明智上一門學科，而其程度既深且厚。
本課程以生動活潑有趣的方式來引發學習者的興趣及其潛能，探究公鑰密碼系統之基本概念。People always like to keep private and not know about others; from personal and minor matters to national affairs, it has been the case since ancient times.
Personally, we have had this direction since we were young, and we can see a few of the various games we played since childhood;
Sometimes it is interpersonal papers, sometimes it is intercourse, sometimes it is private, and the people who keep secrets are parents, siblings, classmates, friends or teachers.
Contact their troops with some of the most basic password methods regarding the king and the people, in order to prevent the enemy from knowing about their important military resumption.
With the advancement of society, the rights of private, corporate and nationality have become more confidential and sensitive, so the need to use more sophisticated and detailed methods to protect data is increasing.
Now, the generation of information is now in front of us, and this demand is of course more significant than ever.
When the world becomes more closely related, people's demand for information and electronic services will continue to increase, and more demands will bring greater dependence on electronic systems.
At present, it is already habitual and very common to exchange important information through the Internet, such as credit card numbers.
Therefore, protecting the security of data and electronic systems is also an indispensable part of our lifestyle.
The skills required to protect data are, in fact, exciting and striking, and are generally considered to be in the field of password technology.
In the past thirty years, this has been a very active research field; especially since the popularity of personal computers, it has been even more unremarkable.
Modern password art can be said to be based on mathematics, computer science and wise to go to a new subject, and its degree is both profound and profound.
This course uses a lively and interesting way to attract learners' interest and potential, and explores the basic concepts of the key password system.
本課程屬通識自然學科領域。本課程盡量以生動活潑有趣的方式來引發學習者的興趣及其潛能。首先吹響「密碼之旅」序曲，藉此凝聚旅遊者之注意力，從而開始著手打點其出遊之行囊、裝備其基本數論和傳統密碼方面的預備知識並在當中其糾正一些先入為止的錯誤觀念。接著我們探究公鑰密碼觀念之孕育的歷史過程，希望能從當中體會到構思如何究破困境扺達「柳暗花明又一村」的點點滴滴。在此基礎之下，最後我們譜出公鑰密碼系統的五大樂章
This course belongs to the field of knowledge of nature. This course attracts the interest and potential of learners in a lively and interesting way. First, we will praise the "Password Journey" overview to gather the attention of travelers, and then start to put their bags on the trip, install their basic data and traditional passwords, and correct some preconceived misconceptions. Then we explore the historical process of the birth of the public password concept, hoping to get from the middle to the point of thinking about how to solve the dilemma and reach "a new village with dark willows and flowers". Under this foundation, we finally conclude the five major chapters of the key password system
必備教科書: 不可能的任務--公鑰密碼傳奇－沈淵源, 三民書局, 2015年2月 ISBN：978-957-14-5991-2
Must-before teaching and science books: Impossible tasks--The legend of public key passwords-Shen Qingyuan, Sanmin Book Bureau, February 2015 ISBN: 978-957-14-5991-2
| 評分項目 Grading Method | 配分比例 Grading percentage | 說明 Description |
|---|---|---|
| Reading Quizzes(預習閱讀測驗及上課)Reading Quizzes(預習閱讀測驗及上課) Reading Quizzes (pre-reading reading and class preparation) |
60 | Every week 每星期 |
| Mid-term Report (期中報告)Mid-term Report (期中報告) Mid-term Report (Mid-term Report) |
10 | 11/10/2017 Hand in (繳交) |
| Mid-term Cipher (期中上機破解密碼）Mid-term Cipher (期中上機破解密碼） Mid-term Cipher (Mid-term Critical Password) |
10 | 11/24/2017 Hand in (繳交) |
| Final Report (期末報告)Final Report (期末報告) Final Report (Final Report) |
10 | 01/12/2017 Hand in (繳交) |
| Final Cipher (期末上機破解密碼）Final Cipher (期末上機破解密碼） Final Cipher (Cracking password at the end of the period) |
10 | 01/12/2017 Hand in (繳交) |
