• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of visual communication & image representation >Joint image compression and encryption based on order-8 alternating transforms
【24h】

Joint image compression and encryption based on order-8 alternating transforms

机译：基于8阶交替变换的联合图像压缩和加密

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, we propose a novel joint image compression and encryption scheme based on JPEG standard. We realize image encryption at JPEG's transformation stage. Instead of only using 8 x 8 discrete cosine transform (DCT) for transformation, we generate new orthogonal transforms by embedding an extra rotation angle of it to different stages' butterflies in 8 x 8 DCT's flow-graph, and then apply them alternatively for transformation according to a predefined secret key. By carefully controlling the number of rotation angles embedded, the quality control of encrypted images can also be achieved. The encryption algorithm is further enhanced by performing block permutation before the entropy encoding stage. Extensive experiments have been conducted to show the good protection and compression performance of our encryption schemes. Finally, a detailed security analysis is provided to show the encryption schemes' resistance to various cryptanalysis methods, such as brute-force attack, key sensitivity analysis, replacement attack and statistical attack.(C) 2017 Elsevier Inc. All rights reserved.
机译：在本文中，我们提出了一种基于JPEG标准的新颖的联合图像压缩和加密方案。我们在JPEG的转换阶段实现图像加密。我们不仅仅使用8 x 8离散余弦变换（DCT）进行变换，还通过在8 x 8 DCT的流程图中将其额外的旋转角度嵌入到不同阶段的蝶形中来生成新的正交变换，然后将它们交替应用于变换根据预定义的密钥。通过仔细控制嵌入的旋转角度数，也可以实现加密图像的质量控制。通过在熵编码阶段之前执行块置换，进一步增强了加密算法。已经进行了广泛的实验，以证明我们的加密方案具有良好的保护和压缩性能。最后，提供了详细的安全性分析以显示加密方案对各种密码分析方法的抵抗力，例如蛮力攻击，密钥敏感度分析，替换攻击和统计攻击。（C）2017 Elsevier Inc.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号