An Experimental Investigation of Text-based CAPTCHA Attacks and Their Robustness.
Ping WangHaichang GaoXiaoyan GuoChenxuan XiaoFuqi QiZheng YanPublished in: ACM Comput. Surv. (2023)
Keyphrases
- digital image watermarking
- countermeasures
- semi fragile watermarking
- geometric attacks
- image watermarking scheme
- malicious attacks
- multimedia
- visual features
- watermarking scheme
- security mechanisms
- watermark embedding
- chosen plaintext
- malicious users
- high robustness
- traffic analysis
- java card
- genetic algorithm
- user authentication
- smart card
- semantic information
- information systems