This program demonstrates a watermarking attack
against EncFS in standard mode.

To compile the programs invoke "make" on the command line.

Watermarking Demonstration
* create and mount a EncFS file system:
    encfs /xy/encrypted /xy/plain
* chose the standard mode and some password
* copy the prepared file data.bin and some other files to /xy/plain
* invoke analyze on the encrypted files:
    ./analyze /xy/encrypted/*

This should produce an output similar to this:
/xy/decrypted/1l4iy2Q04IH4SVp6Yroo1m6y: No mark found
/xy/decrypted/5Jl27,At2,W-EihEftpeG4ND: No mark found
/xy/decrypted/7DcyWgU8qiMp8of,1,1jDQb2: No mark found
/xy/decrypted/B1lCLzOMY47JIYqYG8iiZiDA: No mark found
/xy/decrypted/UBYBnhTQYR43cysNRx5zLjcX: MARKED FILE! (Block number 619)
/xy/decrypted/VsU-y81ll44b6UWJW0E,WxNW: No mark found

in this case /xy/decrypted/UBYBnhTQYR43cysNRx5zLjcX is the encrypted
version of data.bin
