Martin, you've been demonstrating Visual JPEG at DFRWS. Could you tell us about the concept behind it, and how you came up with the idea?
It’s a tool to make life easier for people examining files.
The background of this was that for a Master’s research project, I was looking at ways of working with JPEGs with Digiprove, a company that uses digital certificates for files, and they wanted to get a way of building the digital certificate actually inside the file instead of travelling as a separate item. And I did come up with a way of doing that, but I found it frustrating that I had to work a lot with JPEGs, and I was having to use things like hex editors. It’s so much hard work. And I just said no, there has to be an easier way of doing this.