Unit 3: Day 3
START DATE:DUE DATE:STATUS:Open
Tasks
29.1 Theory of the Internet Lesson 3
- Watch Code.org video 5 The Internet: HTTP & HTML [7:06]
- And watch Code.org video 6 The Internet: Encryption & Public Keys [6:39]
- Encryption is the process of encoding data to prevent unauthorized access. Decryption is the process of decoding the data. Two common encryption approaches are:
- Symmetric key encryption involves one key for both encryption and decryption.
- Public key encryption pairs a public key for encryption and a private key for decryption. The sender does not need the receiver’s private key to encrypt a message, but the receiver’s private key is required to decrypt the message.
- Certificate authorities issue digital certificates that validate the ownership of encryption keys used in secure communications and are based on a trust model
29.2 Work Time on HTML Assignment 1
Continue to Unit 3: Day 4 »
