tags with appropriate classes for styling. The existing files use Tailwind CSS and some custom styles, so I'll apply those classes for consistency. Also, there's an interactive hero effect where the background changes based on mouse movement, so that script should be included at the end. I need to make sure all links are valid, pointing to existing pages or the next module. For instance, after encryption, the next module might be HTTPS. Also, the tutorial should have a structure that's easy to navigate, with sections like basics, algorithms, and practical examples. I should check if any prohibited content is included, but encryption is generally acceptable. The code examples will use HTML entities for characters like < and >. The file should be self-contained with proper Tailwind and custom styles, scripts, and valid HTML structure. Putting it all together: start with the header, the hero section, sections on encryption types, examples, code snippets, and a next module link. Use the same navigation, styles, and scripts as other tutorials to maintain consistency. Ensure all links are correctly formatted and point to valid sections within the site. Encryption - Shipwrecked

Network Security

Understanding Encryption

Protect data in transit with modern cryptographic techniques

Next Module: HTTPS

Encryption Fundamentals

What is Encryption?

Conversion of data into a secure format that can only be read by authorized parties

plaintext = "secret data"
key = "12345678"
ciphertext = encrypt(plaintext, key) // <-- Encrypted
```