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Renewal of session key is done before answer cache #47

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t5b6de opened this issue Mar 7, 2020 · 3 comments
Open

Renewal of session key is done before answer cache #47

t5b6de opened this issue Mar 7, 2020 · 3 comments

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@t5b6de
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t5b6de commented Mar 7, 2020

I dont know if this is an issue, but sometimes (especial hd02 and hd03, are much slower cards) it can lead to decoding-glitches

2020/03/07 23:37:51 0999E2E2 c      (ecm) user1 (186A:000000:EF77, CW:978F0A30DE39BBD288EA4DBF8A444816): found (122 ms) by hd04 (L/1/2/2) - SIXX HD
2020/03/07 23:37:51 65E37E5C r   (reader) hd04 [nagra merlin] 10521302 CMDs left to FASTreinit
2020/03/07 23:37:51 65E37E5C r   (reader) hd04 [nagra merlin] Card is starting in GLOBAL mode
2020/03/07 23:37:51 65E37E5C r   (reader) hd04 [nagra merlin] New AES: E2 25 84 24 D9 AB F4 96 DC 74 E3 61 59 77 30 FD 
2020/03/07 23:37:51 1365075D c      (ecm) user2 (186A:000000:EF77, CW:978F0A30DE39BBD288EA4DBF8A444816): cache2 (707 ms) by hd04 (L/1/2/2) - SIXX HD
@FFTEAM
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FFTEAM commented Mar 8, 2020

Was ist denn nun dein Problem?

@t5b6de
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t5b6de commented Mar 8, 2020

User2 bekommt die Antwort auf das ECM erst nachdem der Session Key erneuert wurde.
Heißt 700ms oder gar beinahe 1,5s (HD02) später.
Wenn viel los ist, beispielsweise mit ungünstiger konstellation verschiedener Sendern kommt es zu freezern.

@FFTEAM
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FFTEAM commented Mar 8, 2020

so cache dürfte gar nicht so hoch sein, trotzdem muss das funktionieren

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