StegCloak - Hide secrets with invisible characters in plain text securely using passwords

July 10, 2020
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StegCloak is a pure JavaScript steganography module designed in functional programming style, to hide secrets inside the text by compressing and encrypting the secret before cloaking it with special unicode invisible characters. It can be used to safely watermark strings, invisible scripts on webpages, texts on social media, or for any other covert communication. Completely invisible! See how it works in-depth in this Medium article or watch our demo to know what it does.

Features

  • Protect your invisible secret using passwords and HMAC integrity
  • Cryptographically secure by encrypting the invisible secret using AES-256-CTR.
  • Uses 6 Invisible characters in unicode characters that work everywhere on the web - Tweets, Gmail, WhatsApp, Telegram, Instagram, Facebook, and many more!
  • Maximum Compression to reduce the payload (LZ, Huffman).
  • Completely invisible, uses Zero Width Characters instead of white spaces or tabs.
  • Superfast! Hides the Wikipedia page-source for steganography (800 lines and 205362 characters) within a cover text of 3 words in under one second.
  • Hiding files in strings can be achieved by uploading the file to the cloud and stegcloaking the link in the string
  • Written in a pure functional style.
  • Usage - Available as an API module, a CLI, and also a Web Interface (optimized with web workers).

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