PSP with a signed ram?

[Dariusc123456]

Could it be possible that sony might have the ram signed so if any code try to modify the ram, it wont work?

[slasher2661996]

maybe but it wouldn't be that hard to bypass, as they would need to write a function for the older games, and we could just find and use that function

[Davee]

Could it be possible that sony might have the ram signed so if any code try to modify the ram, it wont work?

Erm, global variables?

[Dariusc123456]

maybe but it wouldn't be that hard to bypass, as they would need to write a function for the older games, and we could just find and use that function

But even if they write a function for it, it still need to be encrypted with a rsa key. Knowing if the AES keys are located within the psp hardware, they could also store the rsa private keys for the ram within it too.

The reason i ask because on the psp go (4k) that if sony might have new security features on there.

EDIT:

How come that the digital signature within the fw is more than 20bytes? Did they sign the eboot with sha-2 or sha-128? In 3.60ofw, the signature is 20 bytes, and the psp games/demo's form the store is 40bytes.

[m0skit0]

I don't think that would be a nice idea. Do you imagine the amount of encryption/decryption load required to do an encrypted RAM? That would be foolish from Sony, and PSP wouldn't be able to handle that at a decent speed. Not to talk about the games and all the 3D calcs + encryption/decryption load...

[Dariusc123456]

I don't think that would be a nice idea. Do you imagine the amount of encryption/decryption load required to do an encrypted RAM? That would be foolish from Sony, and PSP wouldn't be able to handle that at a decent speed. Not to talk about the games and all the 3D calcs + encryption/decryption load...

Sony knows the hardware better than us, so they will think of something.