After the announcement of the piracy of the f00d of the Vita by xyz last week, yifanlu today released a pack of tools that allow us to decrypt the backup files and allow still some tinkering on old and even recent firmwares .
The technical part
After the xyz and proxima surveys on the f00d processor, it was necessary to implement key search measures to find the secret key used in the backup operations, of course each key is different for each console, for each PSN account To be more precise, and can not be shared at all.
To get your personal key you must have a pirated PS Vita, and this is where the YiFan Lu tools come in.IT IS https://yifan.lu/2017/02/19/psvimgtools-decrypt-vita-backups/Know that cryptography is based on the AES-256.
The idea of the YiFan Lu tool is to be able to extract, modify, reload, reinstall backups on any firmware, but full of other things, such as activating the whitelist hack for PSTVs, X / O Exchange button, Homebrew ePSP, PackageInstaller, custom themes and probably even more in the future.
The goal is simple for YiFan Lu is to provide tools and let the developers act, the processes are quite complex and reserved for experienced users.
Download https://github.com/yifanlu/psvimgtools/releases
More information http://wiki.henkaku.xyz/vita/PSVIMG
Source http://yifan.lu/2017/02/19/psvimgtools-decrypt-vita-backups/
The technical part
After the xyz and proxima surveys on the f00d processor, it was necessary to implement key search measures to find the secret key used in the backup operations, of course each key is different for each console, for each PSN account To be more precise, and can not be shared at all.

To get your personal key you must have a pirated PS Vita, and this is where the YiFan Lu tools come in.IT IS https://yifan.lu/2017/02/19/psvimgtools-decrypt-vita-backups/Know that cryptography is based on the AES-256.
The idea of the YiFan Lu tool is to be able to extract, modify, reload, reinstall backups on any firmware, but full of other things, such as activating the whitelist hack for PSTVs, X / O Exchange button, Homebrew ePSP, PackageInstaller, custom themes and probably even more in the future.
The goal is simple for YiFan Lu is to provide tools and let the developers act, the processes are quite complex and reserved for experienced users.
Download https://github.com/yifanlu/psvimgtools/releases
More information http://wiki.henkaku.xyz/vita/PSVIMG
Source http://yifan.lu/2017/02/19/psvimgtools-decrypt-vita-backups/
