The OP deleted his account, but before deleting, he posted some screenshots and information that has been archived on the Wayback Machine.
According to the OP’s thread (which was deleted), he had access to a PS3 test kit that had the MGS V alpha, but the PS3 was dying. So, he cloned the HDD and sold the PS3. This was years ago. Now, he’s looking for a way to retrieve the data from the encrypted hard drive.
The data may be irretrievable without access to the original PS3 test kit. However, there may be some incredible discoveries on this early build of the game, such as Chapter 3, Mission 51, Return to Camp Omega etc.
BIG (5⁄16): It’s kind of a long story, but the original thread is confirmed to be a ploy by user TheHungHorse. It seems likely that there is some sort of alpha build of a game (potentially MGS V), but TheHungHorse is using games and deception to try and get the key to break the hard drive’s encryption.
EDIT 2 (5⁄17 …