# Page Not Found

The URL `secret-key_cryptography/aead.html` does not exist.

You might be looking for one of these pages:
- [AEAD constructions](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead.md)
- [Secret-key cryptography](https://libsodium.gitbook.io/doc/secret-key_cryptography.md)
- [Encrypted streams and file encryption](https://libsodium.gitbook.io/doc/secret-key_cryptography/secretstream.md)
- [Authenticated encryption](https://libsodium.gitbook.io/doc/secret-key_cryptography/secretbox.md)
- [AEGIS-128L](https://libsodium.gitbook.io/doc/secret-key_cryptography/aead/aegis-128l.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://libsodium.gitbook.io/doc/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://libsodium.gitbook.io/doc/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/doc/secret-key_cryptography/aead.md`)
- Use `Accept: text/markdown` header for content negotiation