Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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ve7xen:

--- Quote from: 2N3055 on March 03, 2020, 08:50:31 am ---
--- Quote from: ve7xen on March 03, 2020, 12:07:39 am ---It's also very unlikely but not completely outside the realm of possibility that Rigol revokes the existing keys, and issues new licenses to legitimate customers.

--- End quote ---
And why would they do that when, for a year now, all options are free and unlocked...?

--- End quote ---

They're not going to. But let's not say it's impossible.
tv84:

--- Quote from: ve7xen on March 03, 2020, 09:20:27 am ---They're not going to. But let's not say it's impossible.

--- End quote ---

I will.  That's impossible as the software has no revoke mechanisms. That's a totally different ballgame.

Develop that at this stage would be economically prohibitive for this kind of equipment. 
ve7xen:

--- Quote from: tv84 on March 03, 2020, 10:17:38 am ---
--- Quote from: ve7xen on March 03, 2020, 09:20:27 am ---They're not going to. But let's not say it's impossible.

--- End quote ---

I will.  That's impossible as the software has no revoke mechanisms. That's a totally different ballgame.

Develop that at this stage would be economically prohibitive for this kind of equipment.

--- End quote ---

From a software engineering point of view it's trivial, just change the trusted key on the scope. To do so in a manner that wouldn't be easy to hack again wouldn't be, but this kind of thing is always an arms race and it wouldn't be the first time a company saw value in throwing up some meaningless barriers. I'd actually call the MSO's unique keys a step in this direction.

The difficulty actually doing it would be the business ramifications of making all issued licenses not forward compatible to the new software, and the realization that it wouldn't actually achieve anything. It's a matter of the business impact of causing all those support issues and bad juju from paying customers that is stopping them. And probably they recognize that the hacking is good for the popularity of their products and aren't going to spend good will to try to stop it.

What they can't do is go all FTDI and start bricking stuff.
Fungus:

--- Quote from: ve7xen on March 03, 2020, 09:20:27 am ---They're not going to. But let's not say it's impossible.

--- End quote ---

Pigs could also evolve wings, but...
ve7xen:

--- Quote from: Fungus on March 03, 2020, 10:27:52 am ---
--- Quote from: ve7xen on March 03, 2020, 09:20:27 am ---They're not going to. But let's not say it's impossible.

--- End quote ---

Pigs could also evolve wings, but...

--- End quote ---

I feel like we're engineers here and should hold ourselves to the most basic standard of accuracy. If, on an engineering forum, you say something can't be done, I take it to mean that it can't be done, not that it won't be.
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