Questions SCK key ******** MTP850

[bachi]

Hi,
could somebody tell me if the flash report (Entire Flash) is located in the SCK key?

It is possible to reade the SCK key in the lab mode?


Thanks for your help :-)


Best regards

[JMGUD]

No, it is not, and No you cannot read it with any cps

[bachi]

Are you sure?
You have no chance with the Depot CPS?

[JMGUD]

Yes, I am sure. Encryption keys are not in flash memory

[bachi]

SIM only?
Or the keys are then stored on the radio?

[JMGUD]

Nope, there is special ASIC IC for crypto function

[bachi]

Ok!


Is saved when you insert the SIM of the Key in IC?


Key stored as long as it remains to be "** 00 # #" presses? Or it will be deleted if the SIM is removed?


Excuse my bad english :-)

[bachi]

What is needed to write a Key to the radio?


Keyloader? Flash cable?


Or that only works with a SIM?

[JMGUD]

yes, Keyloader and cable plus special TEA firmware + valid key pairs

[bachi]

Thanks for the explanation!


Extends the USB cable? Or flash cable (RS232)?

[bachi]

Has the Keyloader a type number? PMVN **** or something?

[JMGUD]

KVL 3000 Plus Key Variable Loader

[bachi]

many thanks for your help

[JMGUD]

No problem, however this hardware is not cheap and not easy to buy either.

[bachi]

The KVL3000Plus is really expensive ....
Is a software solution is not??
pity

[tetrafw]

Seems only KVL can manipulate with internally protected AIE keys.
******** TETRA radios has no mystic chips inside but KVL must have to protect secret data and algorithms.

[chipetto]

nice info regards Nico