snow ☆
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Description:
Whitespace steganography: coded messages using whitespace
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Security
Tags: steganography security privacy encryption cli
Install: brew install snow
About:
Snow is a steganographic tool that hides text messages within the whitespace of other files, such as HTML or plain text. It leverages trailing spaces and tabs, which are invisible to the human eye but easily extractable by the tool, to transmit secret data covertly.
Key Features:
  • Hides messages in whitespace characters (spaces and tabs)
  • Resistant to reformatting and whitespace stripping
  • Includes a compression step to maximize hidden data capacity
  • Supports encryption for secure message transmission
Use Cases:
  • Covert communication via seemingly innocuous text files
  • Embedding metadata or signatures in source code or documents
  • Bypassing censorship or data loss prevention systems
Alternatives:
  • steghide – Steghide embeds data in image and audio files, whereas Snow uses text whitespace.
  • zsteg – Zsteg is designed for analyzing PNG and BMP images for hidden data, focusing on pixel bits rather than text formatting.
Version History
Detected Version Rev Change Commit
Sep 15, 2025 8:47am 0 VERSION_BUMP 108e5427
Sep 13, 2024 10:53pm 0 VERSION_BUMP c579ba6c
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