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    • 7. 发明专利
    • DE102006010514B4
    • 2008-09-18
    • DE102006010514
    • 2006-03-07
    • INFINEON TECHNOLOGIES AG
    • LAACKMANN PETERJANKE MARCUS
    • G06F21/44G06K19/07
    • The chip (15) has an operation unit (41) for performing logical operations in connection with a terminal meeting and implemented as a security controller. A current consumption device (43), e.g. load transistor, is activated through a terminal to cause a current consumption additional to a current consumption of the operation unit, such that the logical operations are independent of the additional current consumption. Authenticity of the chip is determined based on the additional current consumption. Independent claims are also included for the following: (1) a system comprising a chip (2) a method for operating an electrical circuit (3) a method for operating a terminal (4) a digital storage medium for performing a method for operating a terminal and an electrical circuit (5) a computer program product comprising program code to perform a method for operating a terminal and an electrical circuit (6) a computer program comprising program code to perform a method for operating a terminal and an electrical circuit.