Description: This talk will look at different techniques used in black-box reverse engineering of data storage formats, focusing on a case study of an outdated mass transit ticketing system which employed custom cryptography. We'll discuss data gathering and collation and how we used small programs to analyse the data. This will include some basic statistics and cryptanalysis that can be used to break weak codes and ciphers. We'll also cover the dangers of custom cryptography and the difficulties of responsible disclosure.
TRAINHACK BIO
We're a group of security hobbyists currently studying computer science. We're relatively new to the security industry, but have varied interests including static binary analysis, cryptography, securing web applications and low level hardware implementation. We enjoy sunsets, French films, and coding in dark rooms while listening to repetitive electronic music.
Tags: securitytube , hacking , hackers , information security , convention , computer security , ruxcon-2012 ,
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