1. Steganography Yaniv Miron aka Lament 24/5/09

2. Whois /me Entrepreneur & Organizer of The IL.Hack 2009 Convention Publisher of information security flaws 5 Year of official information security experience Information Security researcher & Consultant Mamram CISO in the past 24/5/09

3. What is Steganography ? The word steganography is of Greek origin and means "concealed writing". 24/5/09

4. What Steganography used for? Steganography can be used to maintain the confidentiality of valuable information, to protect the data from possible sabotage, theft, or unauthorized viewing Some other stuff (that we don’t care right now…) 24/5/09

5. Steganography vs. Cryptography Steganography goal is to keep the presence of a message secret, or hide the fact that communication is taking place Cryptography goal is to obscure a message or communication so that it cannot be understood 24/5/09

6. Steganography ?! 24/5/09

7. Test Case 1: Picture 24/5/09

8. Test Case 1: Picture 24/5/09

9. Test Case 1: Picture Let’s change some hex in here … 3D -> 8F 24/5/09

10. Test Case 1: Picture 24/5/09

11. Test Case 2: Audio Some ATB Music... 24/5/09

12. Test Case 2: Audio Lets see what’s going on in the backstage... 24/5/09

13. Test Case 2: Audio 24/5/09

14. Test Case 2: Audio.---- ----- --........ -.....----..--- -----....- ---...----.---- ----.........-- ----. ---.. ----. ---...----.---- --....----.----...-- 24/5/09

15. Test Case 2: Audio Morse to English : 1075612048119539898117113 24/5/09

16. Test Case 2: Audio Now we will divide the numbers to logical ASCII numbers as: 107 56 120 48 119 53 98 98 117 113 24/5/09

17. Test Case 2: Audio 24/5/09

18. Test Case 2: Audio The password is: k8x0w5bbuq 24/5/09

19. Questions ? -> Google.COM 24/5/09

20. #E0F# Yaniv Miron aka Lament info@ilhack.org In god we trust, All others we monitor. 24/5/09