- A few weeks back GeoHot Hacked PS3
, and now a new patent
has surfaced from Kanna Shimizu
of IBM for a method to protect secrets against encrypted section attacks.
writes: It seems it is SONY's answer for GeoHot's progress.
Take a look here, to quote: "A method, system, and computer-usable medium are disclosed for controlling unauthorized access to encrypted application program code. Predetermined program code is encrypted with a first key.
The hash value of an application verification certificate associated with a second key is calculated by performing a one-way hash function. Binding operations are then performed with the first key and the calculated hash value to generate a third key, which is a binding key.
The binding key is encrypted with a fourth key to generate an encrypted binding key, which is then embedded in the application. The application is digitally signed with a fifth key to generate an encrypted and signed program code image.
To decrypt the encrypted program code, the application verification key certificate is verified and in turn is used to verify the authenticity of the...