Snowdrop offers a tool for watermarking text or code using stenography. This software is designed to enable users to embed and extract covert messages from existing content without altering its functionality.
This tool is designed to provide reliable, useful source-level watermarking and steganography capabilities. It utilizes specially crafted MD5 shortcuts and other tricks to give additional advantages to users. These include integrity and privacy of embedded information and an ability to demonstrate the origin of a document to the public.
Snowdrop stands out from traditional low-level steganography methods by embedding information in the source itself. Separate logical channels are used to carry highly redundant watermark, making it extremely difficult to accidentally remove the information through simple reformatting or other means.
This software release fixes an annoying bug causing the code to segfault when there is no sync at the end of the watermarked file. The bit walk algorithm still has some issues, and the overall storage capacity and performance may not meet expectations. However, this tool is a step forward in bringing invisible and modification-proof watermarking to text and computer source codes.
Version 0.02b: N/A