Each EMM key will update all ECM keys in the same group. For each service id, a dummy ECM key has to be added. This new ECM key will be used instead of the dummy one when opening the channel. After a while, a new ECM key will be written at the bottom of the SoftCam.Key file. When you tune into the channel with the service id '0004', the auto update function will run. If you need different ECM keys for channels with the same service id, make sure they belong to different groups, like in the example: On the other hand there is one drawback: The application of this new method is limited to STBs utilizing the enigma namespace, like enigma2 boxes and TVheadend, VDR, etc.įor channels with the same service id, the correct ECM key will be detected automatically, but each key needs a unique groupid. All problems described in Note 3 are disappeared, which makes creating a proper, trouble-free SoftCam.Key easier for all.Memory consumption is lower and getting the correct key is faster.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)

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