通过大量图像中隐藏的坚固片段进行秘密通信
Pengfei Wang1, Hua Zhong2, Yapei Feng2
1School of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
Sensors (Basel, Switzerland)
|January 23, 2024
概括
这项研究引入了一种安全的通信系统,可以将秘密数据碎片化,并使用强大的水印在多个图像中冗余地隐藏它. 该方法可确保即使在显著的图像丢失或各种攻击后,也能完全恢复秘密数据.
科学领域:
- 计算机科学 计算机科学
- 信息安全 信息安全
- 数字水印是指数字水印.
背景情况:
- 在损失道中的秘密通信面临隐藏水印图像处理攻击的挑战.
- 在攻击后确保未经扭曲的秘密信息提取需要强大的水印技术.
研究的目的:
- 设计一种新的碎片化安全通信系统,以在有损失的通道上可靠地传输数据.
- 开发一种强大,坚固的图像水印方法,能够抵抗各种攻击.
主要方法:
- 分碎秘密数据并将其冗余地隐藏在社交平台的众多多式联运载体 (图像) 中.
- 采用双层水印方法:DFT以提高效率,DCT以抵抗翻译和JPEG攻击.
- 实施碎片化策略,每个数据片段都嵌入多个图像中.
主要成果:
- 拟议的水印方法实现了高嵌入/检测效率和良好的隐形性 (平均41dBPSNR).
- 嵌入和提取时间很快,在2000x2000.2000的图像中不到0.15秒.
- 该系统表现出高度的稳定性,在各种攻击 (旋转,缩放,裁剪) 和显著的图像损失 (高达30%) 下实现100%的秘密文件恢复.
结论:
- 分散的安全通信系统,结合强大的图像水印,是有效和实用的隐蔽数据传输.
- 该方法可确保完全恢复秘密数据,即使有部分载波损失或严重的图像处理攻击.
- 与现有方案相比,该系统在稳定性和可靠性方面得到了显著的改进.
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