x4e's blog

Posts about reverse engineering

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Mixed Boolean Arithmetic Obfuscation


Obfuscating mathematical operations with MBA

Installing Arch Linux on my Chromebook


A walkthrough of how I installed Linux on my ApolloLake Chromebook

Why Bitcoin Has Failed - and the Future of Electronic Cash


A criticism of Bitcoin and an evaluation of it’s competitors

Exploiting the OW2 ASM Library’s Parser


Finding and exploiting a buffer overflow in the OW2 ASM Library

Breaking The Verifier #2


Breaking the verifier for all OpenJDK 8+ JVMs by hooking shared library exports

Breaking The Verifier #1


Bypassing the OpenJDK8 and OpenJ9 verifier through an unsecured backdoor