发明名称 |
METHOD FOR UPDATING A SECURITY PROCESSOR, AND CORRESPONDING SYSTEM, COMPUTER PROGRAM AND SECURITY PROCESSOR |
摘要 |
<p>The invention relates to a method for updating a security processor and to a corresponding system, computer program and security processor. Said method for updating a security processor (16) for a decoder (14) includes a step of downloading at least one code module from a headend (6), including the sub-steps of: encrypting (32) the module by means of an encryption key and algorithm that are specific to said module; cutting (34) the module into a plurality of blocks having a size that is specific to said module; integrating (34) each one of the blocks of the module in a specific message; broadcasting (36) each one of said messages; receiving (38) said messages in the decoder (14); extracting (42) blocks of the module from said messages; decrypting (42) blocks of the module; and storing (44) blocks of the module in a memory space dedicated to said module.</p> |
申请公布号 |
EP2517452(B1) |
申请公布日期 |
2013.11.06 |
申请号 |
EP20100812872 |
申请日期 |
2010.12.21 |
申请人 |
VIACCESS |
发明人 |
PRESTY, RENAUD;GRANET, OLIVIER |
分类号 |
H04N5/00;G06F9/445;G06F21/00;G06F21/57;H04H60/23;H04N7/16;H04N21/262;H04N21/418;H04N21/458;H04N21/4623;H04N21/6543;H04N21/845 |
主分类号 |
H04N5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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