Lately during some support work, a customer raised an interesting case regarding what was referred to as "port reuse". This lead to quite a nice investigation on the effect of the MSL and TIME_WAIT characteristics of TCP. So first we should define these terms and what exactly they mean. Getting an exact definition can be … Continue reading TIME_WAIT and “port reuse”
Spurred on by the russian spies use of steganography, I decided to revisit the work I've done in my undergrad thesis regarding the effectiveness of current steganalysis methods. (For those of you who are scratching their heads about steganalysis and steganography, read a quick primer from one of my previous posts: https://dvas0004.wordpress.com/2010/06/27/steganalysis-in-modern-day-anti-malware-systems/) My thesis work … Continue reading A first impression of steganalysis & python
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