One ECM key is used for all channels in a transponder, so the SoftCam.Key has smaller size and it's easier to maintain and update.The advantages of this new method are many: After restarting the Emu reader, the new method should take over for both the ECM algorithm and the EMM (AU) aglorithm. The syntax for this line is the following: The user then needs to enter a new line in the SoftCam.key telling OSCam-Emu which group id to use for each transponder (hash). In order OSCam-Emu to know what is the correct group id to use, it calculates a hash based on tsid, onid and enigma namespace of the transponder.

The new approach is to utilize the group id of the channel when the ECM and EMM algorithms run. The EMM keys used for auto updating can be chosen from various groups (see Note 3) and as a result wrong EMM keys can be used. In addition, the EMM algorithm does not match the group id as well.

If many ECM keys with the same srvid (see Note 1 below) are present in the SoftCam.Key, they are all tried until the correct one is found. This means the ECM algorithm does not match the group id at all when searching for the ECM key. The traditional method of getting ECM keys is based on matching the srvid of the channel only. Matching ECM and EMM keys based on transponder (new method - May 2019)