[ Changed 20th March 1997 ]
One of the fastest growing areas of security research is steganography - hiding information in other information. One example is hiding encrypted copyright marks in digital images; the same ideas can be applied to other problems such as annotation and indexing, and to other kinds of object such as digital audio.
Research in this subject is highly interdisciplinary, and a number of people with backgrounds in graphics, signals processing and statistics have expressed interest in getting involved. I will therefore be giving a brief tutorial on the subject and outlining where the interesting areas of research appear to be.
NOTE: the time and location are nonstandard for a security seminar.