24-10-2012 дата публикации
Номер: CN102752635A
Автор:
Ding Wenhua,
Sheng Zhifan,
Xie Wei,
Wu Min,
Wang Yin,
Li Weidong,
Su Yuwen,
Tian Xuebing,
Xiong Bin,
Liang Jian,
Chu Yuanlin
Принадлежит:
The invention provides a downloadable and replaceable condition receiving system which comprises a safety data management platform, a transmitting end and a receiving end, wherein the transmitting end comprises a transmitting end root key generating module, and is used for receiving a first intermediate key SCKv transmitted by the safety data management platform and a second intermediate key Seedv provided by a chip manufacturer, and generating a root key according to a root key deriving mechanism provided by the chip manufacturer, the SCKv and the Seedv; the receiving end comprises an OTP (one time programmable) region and a receiving end root key generating module, the OTP region is used for reducing a safety key SCK according to an ESCK reducing mechanism written on the OTP region in a burning manner and provided by the chip manufacturer, and an encryption safety key ESCK and a chip identifier Chip IF provided by the safety data management platform when a system is electrified, and transmitting ...
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