公开(公告)号：US08359478B2

公开(公告)日：2013-01-22

申请号：US11968742

申请日：2008-01-03

Applicant: Loïc Bonizec ,  Stéphane Chesnais

Inventor： Loïc Bonizec ,  Stéphane Chesnais

IPC: G06F12/14

CPC classification number: G06F21/72 ,  G06F7/584 ,  G06F21/74 ,  H04L9/002 ,  H04L9/0662 ,  H04L2209/12

Abstract: A method and a system for protecting a static digital datum contained in a first element of an electronic circuit, intended to be exploited by a second element of this circuit, in which: on the side of the first element, the static datum is converted into a dynamic data flow by at least one first linear shift feedback register representing a different polynomial according to the value of the static datum; the dynamic flow is transmitted to the second element; and on the side of the second element, the received dynamic flow is decoded by at least one second shift register representing at least one of the polynomials that has been used by the first element.

Abstract translation: 一种用于保护旨在由该电路的第二元件利用的电子电路的第一元件中的静态数字数据的方法和系统，其中：在第一元件的一侧将静态数据转换为 由至少一个第一线性移位反馈寄存器根据静态数据的值表示不同的多项式的动态数据流; 动态流动被传送到第二元件; 并且在所述第二元件的一侧，所接收的动态流由至少一个第二移位寄存器解码，所述至少一个第二移位寄存器表示由所述第一元素使用的多项式中的至少一个。