I’ve been busy digging into the PS3 lately, I decided it’s finally time to see what secrets can be extracted from it. During my investigations I found that level-1 syscalls, a.k.a. hypercalls, are not handled by IDA so I decided to add support for it to the existing PPC Altivec plugin. Continue reading
When it comes to cryptography algorithms the topic of bruteforcing them appears often, however is rarely dealt with in a satisfying way. Usually such a discussion will start with someone asking “Why not just bruteforce it?” and end with someone stating “It is not possible, it would take too long”. Occasionally someone will chip in with “Why not randomly guess it? You might get lucky”. So one day I decided to find out if it is possible, and if not, to at least get an idea of just how long “too long” is.
This is a very basic overview of some common cryptographic terms and techniques employed not just in videogame consoles but universally. I will make generalisations in order to simplify the explanations, so I urge you to read more elsewhere to get a fuller understanding. Bruce Schneier’s Applied Cryptography is widely regarded as the best introduction and reference book on cryptography. Continue reading
Everyone has heard about the Xbox360 bans that stop a console from connecting to Xbox Live, however not many people realise that Xbox360 consoles can also be revoked. Below you can find a list of all the currently revoked consoles at the time of the Fall’08 system update release. Read on to find out why and how an Xbox360 gets revoked and what effect it has. Continue reading