| Products > Test Equipment |
| Sniffing the Rigol's internal I2C bus |
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| Pehtoori:
--- Quote from: m-joy on January 06, 2014, 10:27:48 am ---Hello, I have Hardware Version 1.0.2.0.0. Can i use 300MHz? Greetings --- End quote --- Yes, but accuracy isn't great. Better limit it to 200MHz |
| tirulerbach:
--- Quote from: zombie28 on January 04, 2014, 02:15:22 pm ---So here it is, the new license code decoder: --- End quote --- Thanks again. I' currently working on a keygen for that beast and run into a small issue, regarding the options bits: :box: --- Code: ---uint32 DecodeLicenseCode(char *licenseCode, uint64& sig1, uint64& sig2) { [...] // option bits return uint32(RC5Block1 >> 48) | (uint32(licenseBits[34]) << 16); } --- End code --- How this binary 32 bit return value gets hashed by the ECC-signature verification? In reality, because of coding techniques used, only the lower 20 bits are valid of this return value. The higher 12 bits are always zero. In the original non-A code these options were an ASCII string which was hashed character wise. But in the A-models it is a 20 bit binary value. If I don't miss something more, this detail is the remaining issue which holds me back to complete the keygen... :-DD As mentioned earlier by zombie28 it would be very helpful if somebody posts an original key for an DS2000-A option. There exists an ambiguity due the license generating. There are about roughly a few dozen possible encoding schemes for a serial and options tuple. :-/O |
| marmad:
--- Quote from: tirulerbach on January 06, 2014, 06:24:31 pm ---As mentioned earlier by zombie28 it would be very helpful if somebody posts an original key for an DS2000-A option. --- End quote --- ;D I seriously doubt anyone (at least reading this blog) HAS an original key for the DS2000A. The trial reset bug (which allowed many original DS2000 owners to get new Trial keys) no longer exists - and no one is buying options anymore. |
| Wall-E:
DM3058E Benchtop Multimeter: I understand that the DM3058E hardware is very similar to, or the same as the DM3068. And it does look like there is room on the DM3058E's LCD for an additional digit as is on the DM3068. Is it true that the hardware may be the same, and if so, is there anyway (software/firmware/mod) that the DM3058E could incorporate at least some of the advanced features of the DM3068? Wallie |
| Mark_O:
--- Quote from: marmad on January 06, 2014, 06:51:17 pm ---I seriously doubt anyone (at least reading this blog) HAS an original key for the DS2000A. The trial reset bug (which allowed many original DS2000 owners to get new Trial keys) no longer exists - and no one is buying options anymore. --- End quote --- If this is true, then... --- Quote from: tirulerbach ---There exists an ambiguity due the license generating. There are about roughly a few dozen possible encoding schemes for a serial and options tuple. --- End quote --- Assuming the combinations were not too elaborate (i.e. painful to code), it would still be possible to build a license-gen with those S1-S24 schemes, that generated the full set, then try each until you got a hit. That would then identify it was S17, for example. In the absence of any original A-keys, brute force may be the only practical option. If you had a sense of which combinations may be most likely, you could start with those, and do the rest only if they all failed. |
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