Dr Ker is a specialist in the hiding and detection of information within digital media such as photographs and social media posts. He is also interested in new algorithms for performing hiding, digital media forensics and digital watermarking. He is currently working on new theoretical and practical problems associated with identifying users who smuggle data in real-world scenarios, such as social networking.
- Computer security
- Steganography (concealing a file, message, image, or video within another file, message, image, or video)
- Steganalysis (the detection of hidden information in digital media)
- The teaching of computer science
Dr Ker has experience of working with the media.