基于帧编码的抗CTP攻击盲指纹机制

Frame code based blind fingerprint scheme of anti-CTP attack

提出了一种基于帧编码的抗剪切(Cropping)、平移(Translation)、拷贝粘贴(Pasting)攻击(CTP攻击)的盲数字指纹方案。方案通过指纹置乱、帧编码等技术处理指纹信息,增加了信息的安全性,使得同步信息与指纹绑定在一起。给出了DCT域基于图像分片的多版本嵌入及基于图像有效分片定位的提取策略。该方案不仅对CTP攻击具有很高的鲁棒性,指纹信息提取时不需要任何辅助信息,且能够有效地抵抗常规图像处理操作。

CTP attack involves the cropping, translation and pasting attack. This paper provides a frame code based blind fingerprint scheme of anti-CTP attack. This scheme deals with the fingerprint information by fingerprint scrambling and frame coding techniques, which improve the information security and make the synchronization information bind with fingerprint. Additionally, the scheme of image slicing based multi-version embedment and im- age based effective slicing position extraction is presented. This scheme is robust against the CTP attack. The extrac- tion of fingerprint information does not need any auxiliary information and can resist the normal image operation effectively.