from news header:
If it is confirmed that it is possible to write any file to hard drive, can we use cryptanalysis approach and take a snapshot image of PS3 encrypted partition first then write KNOWN combination of bytes on ps3 harddrive, i.e. 0xFFFFFFFFFFFF, long enough to be notable - big image file filled with 0xFF or 0x00, then take snapshot again and compare ? It's known as Known-Plain text Attack on ciphers and it is quite effective indeed.
With some effort we would be able to decrypt encrypted partition content ... I am very confident that Sony uses one of modern symmetric key encryption schemes that means we could recover encryption key.
What do you think guys ?