An Introduction to Cryptography

An Introduction to Cryptography

位教师：Sam Wilson

访问权限由 Coursera Learning Team 提供

3,171 人已注册

2个模块

深入了解一个主题并学习基础知识。

16 条评论

初级等级

无需具备相关经验

8 小时完成

灵活的计划

自行安排学习进度

2个模块

深入了解一个主题并学习基础知识。

16 条评论

初级等级

无需具备相关经验

8 小时完成

灵活的计划

自行安排学习进度

您将学到什么

Describe the fundamental concepts and principles of cryptography.
Explore historical cyphers and their significance in the evolution of cryptography.
Investigate modern cryptographic algorithms and protocols.
Gain digital skills as part of Click Start! Follow the link in the instructor bio to see if you're eligible for FREE access to this course and more..

您将获得的技能

要了解的详细信息

可分享的证书

添加到您的领英档案

作业

4 项作业

授课语言：英语（English）

了解顶级公司的员工如何掌握热门技能

了解关于 Coursera for Business 的更多信息

Petrobras, TATA, Danone, Capgemini, P&G 和 L'Oreal 的徽标

该课程共有2个模块

Cryptography is an essential part of secure but accessible communication that's critical for our everyday life and organisations use it to protect their privacy and keep their conversations and data confidential. This course provides a comprehensive introduction to the fascinating world of cryptography, covering both historical cyphers and modern-day cryptographic techniques.

In this course, you will explore the foundations of encryption, decryption, and cryptographic protocols. Through a combination of theoretical concepts, practical examples, and hands-on exercises, you will gain a solid understanding of the principles and applications of cryptography. Join this fascinating course to explore the world of cryptography and learn how secrets have been kept in the past and the modern world. This course is one of many, offered by Click Start, a UK training programme designed to help young people develop digital skills. Click Start offers a limited number of scholarships giving free access to young people in the UK. Check the FAQs to see more detail and follow the link to check if you are eligible for free access today.

Welcome to the first week of the course! We will start the week with an exploration of what cryptography is and what it is used for and then move on to look at some cryptographic techniques, via some ancient cryptography. Although these ancient cryptographic techniques are not very useful in modern life, they are good at demonstrating some of the concepts that are still used in modern day cryptography. Week 1 lays the foundation for Week 2, when we will turn our attention to modern cryptography.

涵盖的内容

2个视频15篇阅读材料1个作业4个讨论话题

2个视频总计9分钟

The course and its creator 2分钟
Solutions: Simple ciphers exercise 7分钟

15篇阅读材料总计165分钟

Welcome to An Introduction to Cryptography 10分钟
Lesson 1: Overview 5分钟
An introduction to simple cryptography 10分钟
The three roles of cryptography 10分钟
Lesson 1: Summary and next steps 5分钟
Lesson 2: Overview 10分钟
What is a 'simple cipher'? 15分钟
Your turn: Try out a simple cipher 10分钟
Simple ciphers: Substitution ciphers 10分钟
Simple ciphers: Transposition ciphers 10分钟
Simple ciphers: Permutation ciphers 10分钟
Simple ciphers: Polygraphic ciphers 15分钟
Your turn: Simple ciphers exercise 30分钟
Vulnerabilities of simple ciphers 10分钟
Lesson 2: Summary and next steps 5分钟

1个作业总计10分钟

Check your understanding: Simple ciphers 10分钟

4个讨论话题总计40分钟

What are you looking forward to? 10分钟
Researching ciphers 10分钟
What type of cipher did you find? 10分钟
End of Week 1: Reflections 10分钟

Welcome to Week 2. In this week you will bring your knowledge about cryptography up to date in the modern day. This is where we start to look at more complex methods for more complex contemporary requirements. To start off, you will be introduced to a concept called 'public key cryptography' which is extensively used on the internet. You will then learn about hash functions and how some cryptographic techniques can be used to produce a digital signature.