Chaos-based encryption for fractal image coding

被引：0

作者：

袁正雄 ^{[1
]}

黄国和 ^{[1
]}

机构：

[1] Department of Electronic Engineering,City University of Hong Kong

来源：

Chinese Physics B | 2012年 / 21卷 / 01期

关键词：

chaos; cryptography; joint image compression and encryption; fractal image coding;

D O I：

暂无

中图分类号：

TN918.4 [密码的加密与解密]; TN919.81 [图像编码]; O415.5 [混沌理论];

学科分类号：

070201 ; 0810 ; 081001 ; 0839 ; 1402 ;

摘要：

A chaos-based cryptosystem for fractal image coding is proposed.The R’enyi chaotic map is employed to determine the order of processing the range blocks and to generate the keystream for masking the encoded sequence.Compared with the standard approach of fractal image coding followed by the Advanced Encryption Standard,our scheme offers a higher sensitivity to both plaintext and ciphertext at a comparable operating efficiency.The keystream generated by the R’enyi chaotic map passes the randomness tests set by the United States National Institute of Standards and Technology,and so the proposed scheme is sensitive to the key.

引用

页码：115 / 126

页数：12

共 27 条

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