METHOD FOR PROTECTING A SMART CARD

摘要

The invention concerns 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 invention is characterised in that the current accumulator (19) powers a processor (P) via a multiplexer (20) when said processor is loaded to execute so-called sensitive operations. FIG. 2: P PROCESSOR M STORAGE BLOCK