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Andrew D. Ker

Position

Background

Research

I work in information hiding, particularly steganography (hiding secret messages in digital media) and steganalysis (detecting that data has been hidden). My most recent work has been on the mathematical foundations of these disciplines and the "square root law of capacity". I am also interested in digital media forensics and, tangentially, digital watermarking. My first research, and doctoral thesis, was on the semantics of programming languages. There is another page containing my publications.

Graduate Supervision and Internships

I am willing to take on selected students for DPhil (PhD) study, but am not able to provide funding. Please see this page before approaching me for graduate study. I take a very limited number of students for MSc or undergraduate projects in the department of Computer Science, advertised internally in the usual way.

I am not accepting interns at this time.

Teaching

In Michaelmas Term (autumn) 2011 I gave a redesigned course on Computer Security. In the past I have lectured on Discrete Mathematics and Lambda Calculus and Types.

As the tutorial fellow at University College, I am responsible for all undergraduates in Computer Science and Maths & Computer Science; University College is particularly well-appointed with tutors in these subjects. I teach many of the first and second year Computer Science courses myself, along with some probability, statistics, and pure maths. If you are thinking of applying, I recommend reading the Computer Science Department and University College admissions pages.

Selected Professional Activities

Other Interests

I am a musician, specifically a percussionist and a baritone. I occasionally play percussion in the University Orchestras in Oxford. I am also somewhat involved in the administration of the Oxford University orchestras. Depending on how industrious they have been recently, you might find up-to-date information on the Oxford University Music Society web site.

Trivia

My surname is properly pronounced "car".