PNG You! 🦀

pngyou is a Rust library and CLI tool for PNG steganography for embedding, extracting, and managing hidden messages in PNG chunks.

⚡️ Features

Library

• PNG-spec compliant parsing and chunk validation
• Strongly-typed Chunk and ChunkType
• Safe insertion, removal, and modification of chunks
• Automatic CRC computation for integrity
• Built with extensibility in mind for tooling beyond steganography

CLI tool

• Encode secret messages into PNG chunk types
• Decode hidden messages by chunk type
• Remove custom chunks from a PNG file
• View PNG file bytes

🚀 Installation

For installing lib,

Add this to your Cargo.toml:

[dependencies]
pngyou = "0.2"

OR,

cargo add pngyou

For installing CLI tool

cargo install pngyou

💫 Features

• Encode: Hide messages in PNG chunks.
• Decode: Retrieve messages by chunk type.
• Remove: Strip custom chunks from files.
• Format Support: Support for other chunk-based formats.
• Detection: Automated scanning for hidden data.
• URL Inputs: Support for automatically fetching an image from the internet.
• Obfuscation: Automatically obfuscate your messages before encoding.