Hi guys, the STBs (set-top-box) in occidental europe use CSA (common scrambling algorithm)and it is implemented hardware side.
Indeed in datasheet SoC of STBs, there is a "transport demultiplexer/descrambler"( schema in attached photo). what I want to know is the scrambling algorithm is implemented in memory like eprom/rom? or something of the operating logic escapes me.
thanks
Indeed in datasheet SoC of STBs, there is a "transport demultiplexer/descrambler"( schema in attached photo). what I want to know is the scrambling algorithm is implemented in memory like eprom/rom? or something of the operating logic escapes me.
thanks
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