Here attached entire easy "colored" procedure from july 2007 but still actual:
Goto in example to InXtc channel and press twice "i" button and take note of following infos:
Hotbird freq 10853
SID 21AD
PMT 0096
Calculate frequency in HEX 2A65
(if you don't like Windows calculator, program "number base converter" is attached belowe)
pick up 3° and 4° byte of SID e PMT
keep public key (example) 1234567890ABCDEFFEDCBA0987654321 and take note that only colored byte are important
At last our working key shoul be done by remote and DSR Studio 1.3 and above
2A65 AD96 FEDCBA876543
Enjoy, Maumixio.