发明授权
US07684567B2 Smartcard dynamic management 有权
智能卡动态管理

Smartcard dynamic management
摘要:
A method for securing a portable security module for use with a decoding element, the portable security module and the decoding element allowing to descramble scrambled audiovisual information. The method comprises analyzing at the portable security module a sequence of command messages, the command messages of the sequence being received at the portable security module at distinct times.
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