[davidhbolton]

In countries like the UK where you can be jailed or fined for not giving a password, this provides a way to do that and escape jail. Truecrypt did it and after the developers stopped supporting that, VeraCrypt came along.

You obviously don't reveal that you are using a plausible denial storage method. Give it a zip extension and rename the application that you access with to something like Zip Archiver. "It's an encrypted zip file and the password is ...." How do they know its not zip or that's there's secret data there?

[flixic]

The app literally says "Welcome to FractalCrypt!" when you open it. Not only revealing the encryption format name, but clearly hinting to how it works.

I'd much prefer an encryption format that hides itself in a well-known one layer encryption (like encrypted zip).

[KingOfCoders]

I agree, something like VeraCrypt where the partition has a certain size, with or without hidden data.

But state level actors might nevertheless have methods to find out, that you write 120gb of data compressed into a 100gb file, there needs to be something hidden because otherwise you would get in 122gb - something like that.

Or single stepping VeraCrypt machine code execution (you see I have no clue).

[akx]

For one, it's not clear that this tool creates standard .ZIP files, so the bad guys using an off-the-shelf `unzip` tool would probably suspect things.

If the tool does create regular ZIPs with irregular contents, they could still see that there's noise that isn't read during the course of decryption/extraction, which is suspect.