Methods for protecting a smart card

Registers – Records – Conductive

Reexamination Certificate

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C235S451000, C235S487000

Reexamination Certificate

active

10473815

ABSTRACT:
A method for protecting an electronic entity such as a smart card, against simple/differential power analysis, by integrating a current accumulator in said entity. The current accumulator (19) powers a processor (P) via a multiplexer (20) when the processor is loaded to execute so-called sensitive operations.

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patent: 6507913 (2003-01-01), Shamir
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patent: 2 616 941 (1988-12-01), None
patent: 2 793 904 (2000-11-01), None
patent: 01/08088 (2001-02-01), None

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