Markdown Steganography

Markdown Steganography:

• Hides messages in markdown formatting
• Uses emphasis markers for encoding
• Single emphasis (*word*) for 0 bits
• Double emphasis (**word**) for 1 bits
• Preserves markdown rendering

Encoding Method:

• Converts message to binary (8 bits per character)
• Finds words in markdown text to emphasize
• Adds * or ** around selected words
• Randomly selects words for encoding

Markdown Compatibility:

• Works with all markdown processors
• Emphasis renders normally in HTML
• No invalid markdown syntax
• Preserves document structure

Detection:

• Unusual emphasis patterns
• Statistical analysis of formatting
• Automated steganalysis tools
• Manual inspection of source

Advantages:

• Hidden in plain sight
• Valid markdown syntax
• Renders correctly
• Good capacity for text files

Limitations:

• Requires words to emphasize
• May alter text appearance
• Detectable with analysis
• Limited by text length

Use Cases:

• Hidden messages in documentation
• Covert communication in README files
• Watermarking markdown content
• Educational cryptography demonstrations

Examples:

• Original: "The quick brown fox"
• Encoded: "The *quick* brown **fox**"
• Message hidden in emphasis patterns
• Renders with normal emphasis styling

Technical Details:

• Binary encoded in emphasis count
• Single * = 0, Double ** = 1
• Random word selection for distribution
• Preserves original word order