https://github.com/oliverbutler/steggy

Written in Rust, features a simple cli and a client-side webapp
https://github.com/oliverbutler/steggy

cli cryptography rust steganography

Last synced: 26 days ago
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Written in Rust, features a simple cli and a client-side webapp

• Host: GitHub
• URL: https://github.com/oliverbutler/steggy
• Owner: oliverbutler
• License: mit
• Created: 2022-05-30T21:02:21.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-06-01T22:30:04.000Z (over 2 years ago)
• Last Synced: 2024-12-08T13:38:45.555Z (about 2 months ago)
• Topics: cli, cryptography, rust, steganography
• Language: Rust
• Homepage:
• Size: 2.88 MB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Steggy CLI Tool

Written in Rust, features a simple cli and a client-side webapp. This tool hides data within the least significant bit of an image. Obfuscation techniques are utilized to make the

![steg.png](/steggy.png)

## Install

```bash

brew tap oliverbutler/steggy

brew install steggy

```

## Usage

### Encode

```bash

steggy encode -f secret.txt -i image.jpg -o out.png

```

### Decode

Decode will output the image inside an encoded image in the same path, optionally allows an output path for the resulting data.

```bash

steggy decode -i out.png

```

# Image Data Structure

This is the structure of a `steggy` encoded image file.

| Pos  | Length   | Field          |

| ---- | -------- | -------------- |

| 0    | 1 byte   | Flags (unused) |

| 1    | 4 bytes  | Name length    |

| 2    | 4 bytes  | Data length    |

| 6    | 16 bytes | Salt           |

| 22   | X        | Name           |

| 22+x | Y        | Data           |