Homebrew Replacing encryption keys in memory?

lukas_2511

Well-Known Member
OP
Member
Joined
Jan 4, 2015
Messages
126
Trophies
0
Age
30
XP
399
Country
Gambia, The
Hey,

I'm just wondering, with the ARM9 Kernel exploit, and the memory access, would it be possible to replace the encryption keys on a 3DS (temporarily) with own keys?

As I understand the only problem why we can't just encrypt and/or sign homebrew and use it like retail games is because we do not have the private key, but if we would be able to replace the public part of the key on the console we could use our own private key, right?

Or is that some part that we can not access? Or is there something else I'm completely missing here?
 

Searinox

Dances with Dragons
Member
Joined
Dec 16, 2007
Messages
2,056
Trophies
1
Age
35
Location
Bucharest
XP
2,026
Country
Romania
You misunderstand. What consoles have is the PUBLIC key, and Nintendo has the private key, meaning only they can sign software. And if you're referring to reading the console's unique key for signing the software it has installed on sysNAND, that isn't stored in memory. It's stored on a secure cryptoprocessor, along with the algorithm that is used to encrypt/decrypt and the system only gets to ask it what to process and receives the already-processed data back, without the keys ever being stored in memory. Nintendo isn't stupid.
 

lukas_2511

Well-Known Member
OP
Member
Joined
Jan 4, 2015
Messages
126
Trophies
0
Age
30
XP
399
Country
Gambia, The
You misunderstand. What consoles have is the PUBLIC key, and Nintendo has the private key, meaning only they can sign software. And if you're referring to reading the console's unique key for signing the software it has installed on sysNAND, that isn't stored in memory. It's stored on a secure cryptoprocessor, along with the algorithm that is used to encrypt/decrypt and the system only gets to ask it what to process and receives the already-processed data back, without the keys ever being stored in memory. Nintendo isn't stupid.


I don't want to read the private key, I want to replace the public key.
Is the public key also stored in a way we can't touch it?
 

naxil

Well-Known Member
Member
Joined
Oct 26, 2011
Messages
817
Trophies
1
XP
535
Country
Italy
I love this thread on gbatemp.. where is the true?
Firts answer = is impossible...
Second = impossible
3= yes u can thats happen when we use gw 7>... lol
 

You may also like...

General chit-chat
Help Users
  • K3N1 @ K3N1:
    I haven't placed an order with Newegg since like 2016 lol
    +1
  • Psionic Roshambo @ Psionic Roshambo:
    Amazon Is better lol
    +1
  • K3N1 @ K3N1:
    Hard to find a fast 2tb SSD for 130
    +1
  • Peretti @ Peretti:
    lately I downloaded super mario galaxy for wii, but in the first phase, right in the first cutscene of the game, the game freezes in that part, with the image appearing but completely frozen. I already had this problem with pikmin 2 but in the end I couldn't fix the problem. Has anyone had this problem, and if so, did you find a solution?
  • K3N1 @ K3N1:
    Moms spaghetti
  • Veho @ Veho:
    Why are republicans so desperate to see Hunter Biden's dick? I don't get it.
  • Maximumbeans @ Maximumbeans:
    They need to see it to prove he isn't a reptilian
  • Veho @ Veho:
    I thought they were trying to prove that he was a reptilian.
  • Maximumbeans @ Maximumbeans:
    Oh yeah :rofl2: then I have no idea!
  • K3N1 @ K3N1:
    @M4x1mumReZ chill on the likes man 15 different times on my profile
  • Veho @ Veho:
    LET ME LIKE YOU KEN
  • K3N1 @ K3N1:
    Emotional damage
  • Veho @ Veho:
    "Access Denied"
  • Veho @ Veho:
    Cool.
  • K3N1 @ K3N1:
    Is it actually coal tho
  • Veho @ Veho:
    Cool coal.
  • K3N1 @ K3N1:
    Sour patch dropplings
  • Veho @ Veho:
    Sour patch droppings :tpi:
  • K3N1 @ K3N1:
    The patches discovered taco bell and decided to sell off the after affects
  • Veho @ Veho:
    Reduce, reuse, regurgitate.
    Veho @ Veho: Reduce, reuse, regurgitate.