Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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tv84:

--- Quote from: aristarchus on March 01, 2020, 10:54:42 pm ---From what I understand, the license codes generated via the 'hacked' method are exactly the same digit-by-digit with what someone would get officially for the same option on the same serial number device.
So, eventually they have to survive any FW upgrade.

(loose neckties everywhere..)

--- End quote ---

Well, let's get loose-necktie techie for a bit: the licenses are not exactly the same digit-by-digit because they are dependent on a k-factor (usually random). So, they can be different but the achieve the same goal.
aristarchus:

--- Quote from: tv84 on March 02, 2020, 04:58:20 pm ---Well, let's get loose-necktie techie for a bit: the licenses are not exactly the same digit-by-digit because they are dependent on a k-factor (usually random). So, they can be different but the achieve the same goal.

--- End quote ---

Thanks tv84 for clearing this, interesting.
(I have to review the riglol sources and see how this plays out)
ve7xen:
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.
McBryce:

--- 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 ---

So annoy all the paid customers, making them enter new codes for the products they already paid for, just to remove a few users that "libereated" their scope themselves?? Extremely unlikely I'd say.

McBryce.
2N3055:

--- 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...?
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