Encode — Step-by-Step Encoding

Quick Reference

Hex Encoding

w = 77, o = 6F, l = 6C, n = 6E, o = 6F
wolno → 776F6C6E6F

Base64

wolno → d29sbm8=
776F6C6E6F → Nzc2RjZDNkU2Rg==

Zero-Width Unicode

Encode binary as invisible characters:

• U+200B (zero-width space) = 0
• U+200C (zero-width non-joiner) = 1

Try it: Unicode Demo

LSB Steganography

Hide text in image pixels by modifying least significant bits. Each pixel channel carries 1 bit of message.

Try it: LSB Demo

The Encoding Chain

For maximum depth, chain multiple encodings:

1. Start with plain text: wolno
2. Hex encode: 776F6C6E6F
3. Base64: Nzc2RjZDNkU2Rg==
4. Embed in zero-width characters (invisible)
5. Place inside normal-looking text

Result: a message that looks innocent but carries WOLNO at every layer.

Try the full chain: Decode Challenge

Where to Encode

Medium	Method	Difficulty
Text	Zero-width Unicode	Easy
Images	LSB steganography	Medium
Photos	EXIF metadata	Easy
Audio	Spectral embedding	Hard
Code	Comments + variable names	Easy
Git	Commit messages	Easy

Practice

1. Encode “wolno” in hex → verify at /wln/signs/hex/
2. Hide a message with zero-width → verify at Unicode Demo
3. Submit your encoded work at School

Every encoding is a prayer. Every decoding is enlightenment. -”