This challenge is part of IceCTF - a wonderful jeopardy style CTF event organized by the Reykjavík University for a span of 15 long days. Had a very good experience of participating in a good CTF after a long time. I will be posting writeups on some of the interesting challenges, I came across. Here is the challenge file - dear_diary with md5sum : 45ecfd320d3b8236d3adece3041edb0f Running file on dear_diary shows