Wasn't that one of the reasons for using the all zeros key? Easy to remember for those of us with increasingly senior moments.If you do decide to just change the key and then get rid, be careful to remember that you have changed the key! The existing key is based on a combination of the MAC and the serial number, so if you change it you do not then automatically have a record of what it is (should you want to do the same again on yet another box).
But you would still have to remember that the key was changed, and not just fall back on the MAC+SN.Wasn't that one of the reasons for using the all zeros key? Easy to remember for those of us with increasingly senior moments.
Fair dos! So the CF has to overwrite it at boot.
It might be that you have the later hardware build, which requires the 1.03.xx firmware. This is identifiable by the aerial input and output sockets being above each other rather than side by side.Anyhow it worked with the highest firmware version.
Now to learn how to change the key.
2. Decryption key can be configured via WebIF >> Settings >> Advanced Settings.
3. A unit's original decryption key is derived from its MAC (6 bytes), and the first 10 digits of its serial number, ASCII encoded (10 bytes):
In this example, the encryption key isCode:
humax# nugget dump 0x0dadd58 0x10 00dadd58: 00 03 78 bd 11 f3 36 33 37 31 30 34 34 39 36 30 ..x...6371044960
000378bd11f336333731303434393630- the eagle eyed amongst you will spot that it's the box MAC address + the first 10 digits of the serial number, although not all bits are actually used.
You misunderstand (or are being loose with terminology). Unless you have physically done something to create new versions of the recordings having decrypted them in the process, all the recordings are encrypted. When you play a recording, the Humax checks a flag in the metadata to see whether it is and encrypted recording or a non-encrypted media file. Assuming it is encrypted, the Humax passes it through a decryptor in the process of sending the video to the TV.So I've done all this and seems to have installed ok; box will record SD and HD ok but will only allow me to watch HD recordings brought over from the original box; the SD recordings are all still encrypted!