Authentication technique based on digital fragile watermarking has gradually been one of the most important researches for its advantage in digital media authentication field.

Content fragile watermarking based on computer generated hologram;

Based on the analysis of the security gap in the authentication mechanism using digital signature, a novel authentication protocol combining digital signature and fragile watermarking are proposed.

As an effective method for multimedia authentication and tamper detection,fragile watermarking is drawing extensive attention recently.

A fragile watermark is designed using integral wavelet transform combined with hash function in order to verify the integrity of medical images.

This paper presents a fragile watermarking scheme based on integral wavelet transform.

Firstly, the basic concepts, algorithmic block diagram and application areas are introduced; then the chaos idea, typical features and the present situation of its applications in fragile digital watermarking are described; lastly, a novel image scrambling matrix and two kinds of new fragile watermarking algorithms based on chaos are proposed.

Information hiding of image—digital watermarking techniques;

Embedding method of digital watermarking based on multiwavelet zerotree construction;

Research on embedding invisible digital watermark in CT image;

Survey of digital watermark security;

Application of digital watermark technology in electronic ticket business;

Study on model analysis of watermark and its algorithm;

A new watermarking approach based on four band wavelet and neural networks;

Fragile watermarking method based on chaotic map and wavelet;