Interview with Martin Harran, Developer, Visual JPEG

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.

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