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Sniffing the Rigol's internal I2C bus
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cybernet:

--- Quote from: tirulerbach on December 29, 2013, 12:35:42 pm ---Hello,

two more dumps...  Both are DS2202A unmodified, firmware 00.02.01.00.03  :-DD

a.) boot-loader mode via the help-key during switch on:
 https://mega.co.nz/#!fY8j2RKJ!EIiEBAYmCJ_4pIpJNB2X7BBpQ30M5BC8-QF3rmoloZ0

b.) normal operating mode, dialog to enter a key open, filled with AAAAAAA BBBBBBB CCCCCCC DDDDDDD and pressed the Apply button once:
 https://mega.co.nz/#!Wd0TDTqT!Zu4l9n1XZETTz39NYvnJ4TpveBUKOquEqPrhOVrCpYI

Now somebody should take a look with a debugger...  8)

--- End quote ---

thx- im going to have a look on various upcoming plane flights ;)
zombie28:
I found function that loads alternative public key in DS2K-A firmware. The new public key is 0xA51BF373712F7D and the private key (that matches old Rigol ECC parameters) is 0x888E77EE47C50A. I don't have DS2K-A scope yet, so I can't confirm if this key will work with existing keygens.
marmad:

--- Quote from: zombie28 on December 29, 2013, 11:38:05 pm ---I found function that loads alternative public key in DS2K-A firmware. The new public key is 0xA51BF373712F7D and the private key (that matches old Rigol ECC parameters) is 0x888E77EE47C50A. I don't have DS2K-A scope yet, so I can't confirm if this key will work with existing keygens.

--- End quote ---

Nicely done!  ;)  I'm curious as to whether it works.
NikWing:
is there a way I can test that?
zombie28:

--- Quote from: NikWing on December 29, 2013, 11:46:02 pm ---is there a way I can test that?

--- End quote ---

You can use this site: http://riglol.3owl.com and check if your DS2K-A scope will accept generated license code.
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