公开(公告)号：EP1467512B1

公开(公告)日：2008-07-23

申请号：EP03425219.7

申请日：2003-04-07

Applicant: STMicroelectronics S.r.l.

Inventor： Kocarev, Ljupco ,  Tasev, Zarko ,  Amato, Paolo ,  Rizzotto, Gianguido

IPC: H04L9/00

CPC classification number: H04L9/001 ,  H04L9/3013 ,  H04L9/302 ,  H04L9/3093

公开(公告)号：EP1467512A1

公开(公告)日：2004-10-13

申请号：EP03425219.7

申请日：2003-04-07

Applicant: STMicroelectronics S.r.l.

Inventor： Kocarev, Ljupco ,  Tasev, Zarko ,  Amato, Paolo ,  Rizzotto, Gianguido

IPC: H04L9/00

CPC classification number: H04L9/001 ,  H04L9/3013 ,  H04L9/302 ,  H04L9/3093

Abstract: An encryption process which is both secure and practical, does not require modular arithmetic, and therefore is very fast, and may be used for realizing a digital signature process, comprises the following steps:

choosing preliminarily at least a private key and a set of permutable functions defined on a certain phase space for encrypting/decrypting messages,
choosing a code for encoding messages to be sent in the form of a number belonging to the phase space, and wherein
the set of permutable functions is composed of chaotic maps generated by a composite function of a first function, a second function and the inverse of the first function,
the private key is defined by using the second function.

It is possible to implement public-key encryption processes and related digital signature processes using chaotic maps by a computer program.

Abstract translation: 安全实用的加密过程不需要模块运算，因此非常快，可以用于实现数字签名过程，包括以下步骤：至少选择一个私钥和一组可置换的密钥 在某个相位空间上定义的用于加密/解密消息的功能，选择用于编码以属于相位空间的数字形式发送的消息的代码，并且其中所述可置换函数集合由复合产生的混沌映射 第一功能的功能，第二功能和第一功能的倒数，私钥通过使用第二功能来定义。 可以通过计算机程序使用混沌映射来实现公钥加密过程和相关的数字签名过程。