🌍 // GEO_STEGO

"A picture is worth a thousand words." > With GeoStego, that is literally true.

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🕵️‍♂️ The Concept

GeoStego is a cryptographic tool that fuses Steganography (hiding data in pixels) with Geofencing (TODO).

Most encryption protects "What" (the data). GeoStego protects "Where".

1. Lock: You hide a message inside a standard PNG image.
2. Geotag: The encryption key is derived from the GPS coordinates provided.
3. Unlock: The recipient can only decode the message if they are nearby the coordinates provided (TODO : Radius needs to be defined).

🧠 Technical Capacity

GeoStego uses LSB (Least Significant Bit) encoding across the RGB channels. This allows for significant data storage without visible distortion.

The Formula: $$C = \frac{W \times H \times 3}{8} - 4$$

Where:

• $W, H$: Image Dimensions
• $3$: Usage of Red, Green, and Blue channels
• $4$: Bytes reserved for message length header (uint32)

📏 The "1000 Words" Benchmark

"A picture is worth a thousand words."

In GeoStego, this is mathematically verified. To store exactly 1,000 words (approx. 6KB of text), you don't need a 4K wallpaper.

You only need a 127x127 pixel icon.

Message Size	Required Image Size (Min)
1 Word (Password)	4x4 px
1 Tweet (280 chars)	28x28 px
1,000 Words (Essay)	127x127 px