公开(公告)号：US20030219119A1

公开(公告)日：2003-11-27

申请号：US10319378

申请日：2002-12-13

Applicant: STMicroelectronics S.r.l.

Inventor： Ljupco Kocarev ,  Toni Stojanovski ,  Gianguido Rizzotto ,  Francesco Italia ,  Domenico Porto

IPC: H04L009/00

CPC classification number: H04L9/0861 ,  G06F7/588

Abstract: A method for generating a random number sequence whose randomness properties are determined a priori, includes defining a parametric map, calculating, in function of parameters of the map, the entropy and the Lyapunov exponent of random number sequences obtainable using the parametric map, and identifying at least a set of values of parameters for which the entropy and the Lyapunov exponent are positive numbers the map has no attracting point. The method further includes assigning a pre-established value as a first feedback value and cyclically carrying out the following steps for generating a random number sequence: determining the parameters inside the set as the numerical values of respective physical quantities, outputting a random number, according to the map with the parameters and the assigned feedback value, and assigning as new feedback value the output random number.

Abstract translation: 一种用于生成随机数序列的方法，其随机特性被先验确定，包括定义参数图，根据图的参数计算使用参数图可获得的随机数序列的熵和Lyapunov指数，以及识别 至少一组熵和Lyapunov指数为正数的参数值，地图无吸引力。 该方法还包括将预先建立的值分配为第一反馈值，并循环地执行以下步骤以产生随机数序列：确定组内的参数作为相应物理量的数值，输出随机数，根据 使用参数和分配的反馈值映射到地图，并将新的反馈值分配给输出随机数。