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IBM Anti-Geohack Patent to Protect Secrets Against Attacks?!


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239w ago - A few weeks back GeoHot Hacked PS3, and now a new [Register or Login to view links] has surfaced from Kanna Shimizu of IBM for a method to protect secrets against encrypted section attacks.

SKFU 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 encrypted and signed program code image. The encrypted binding key is then decrypted with a sixth key to extract the binding key.

The hash value of the application verification certificate associated with the second key is then calculated and used with the extracted binding key to extract the first key. The extracted first key is then used to decrypt the encrypted application code."



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Comments 32 Comments - Go to Forum Thread »

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PS3 News's Avatar
#2 - PS3 News - 239w ago
They were actually talking about this on IRC a bit today... interesting stuff indeed! I have been too busy to do a news post on it but props to SKFU for doing one.
Quote Originally Posted by Raze1988 View Post
Maybe this has nothing to do with the PS3, but only with their servers?

There is always that chance, however, the folks at PS2Dev ([Register or Login to view links]) also find it ironic on the timing of this.
adresd
As can be seen, dated 02-11-2010, so very recent.

Raze1988's Avatar
#1 - Raze1988 - 239w ago
Keys to encrypt keys to encrypt keys to encrypt keys...

Maybe this has nothing to do with the PS3, but only with their servers?

Anyway, I'm not updating my firmware for a while

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