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所在平台: Udemy |
课程主页: https://www.udemy.com/course/cryptography-for-kids/
课程评论：没有评论
课程名称：儿童密码学 课程概览：此课程旨在让儿童学习密码学知识，但需由监护人购买。学生将了解在计算机和互联网出现之前，密码学是如何用来保护信息秘密的。课程内容包括信息的加密过程（使其不可读，仅有密钥的人才能读取）和解密过程（将密文转换为可读的明文）。拥有密钥时，解密变得简单；而没有密钥时，解密就像解谜。 课程中学生将学习凯撒密码（以尤利乌斯·凯撒命名）、一般替代密码（如猪圈密码和阿特巴什密码）以及多表替代密码（如阿尔贝提密码和维吉尼亚密码）。解密技巧包括暴力破解和频率分析，后者是通过分析英语字母和单词的频率来辅助解密。学生将了解到不同的解密技术适用于不同类型的密码。 课程还包含有趣的密码谜题，学生们会学到如何创建自己的密码，使用字母、数字、符号甚至表情符号。该课程有助于提升学生的逻辑问题解决能力，并提供了大量带有完整解答的练习题，所有视频均通过白板动画软件制作。
This course was developed for kids to learn about cryptography but should be purchased by a supervising adult. In this course students learn about how Cryptography was used to keep information secret before computers and the internet. We learn about encrypting messages which just means to make them unreadable except for someone who has the KEY. Decrypting a message just means to take the unreadable text (called ciphertext) and turn it into readable text (called plaintext). If we have the KEY, decryption is easy. However, if we don't have the KEY then decryption is like solving a puzzle. We study Caesar Ciphers (named after Julius Caesar), general Substitution Ciphers like the Pigpen Cipher or the Atbash Cipher and polyalphabetic ciphers like the Alberti and Vigenere Ciphers. The decryption techniques we learn are Brute Force and Frequency Analysis; that is, using the frequency of letters and words in English to help decrypt messages. We learn which decryption technique works for which types of ciphers. We have fun doing cryptograms and students even learn how to create their own cipher using letters, numbers, symbols or even emojis. This course will help students in their logical problem solving skills. There are lots of practice problems with worked solutions in separate videos. All videos were created with the whiteboard animation software videoscribe.
