/sci/ - Science & Math

I've been working on my own steganography tool, and I want to make sure it's robust against steganalysis. Pic related is mcafee's steganalysis method, which is found at https://www.mcafee.com/enterprise/en-us/downloads/free-tools/steganography.html from some google searches, I found that they use Amazon S3 bucket servers, but the only definition for SDI I could find was spectral differential imaging. Is that what they are using, or is it possibly a proprietary secret? Because it seems like SDI was used for other purposes not relevant to my project.