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Emulating RH850 architecture with Unicorn Engine

Introduction Renesas RH850 architecture is quite common in automotive ECUs and we often need during our assignments to analyze firmwares designed to run on this specific architecture. Reverse-engineering such firmware is one thing, being able to emulate some parts or the entirety of it is another that could be valuable to perform code coverage...

Tue Apr 30, 2024 17:43
Non-Compliant, So What?

As auditors, we sometimes struggle when trying to explain to our customers that it is always better to reach the maximum level of security, instead of the minimal required effort. It does not always help that we cryptographers are known to speak in the language of Mordor (we just call it mathematics) and live deep in a zero-knowledge cave. Introduction...

Thu Apr 25, 2024 17:55
Hydradancer: Faster USB Emulation for Facedancer

USB (Universal Serial Bus) is the current standard for connecting peripherals to devices. USB is used to connect keyboards, mouses, printers, music instruments, storage, cameras and pretty much everything to a device. This makes it the perfect target for security researchers with physical access to a USB port. While exchanging with USB peripherals...

Thu Apr 18, 2024 19:55
Passbolt: a bold use of HaveIBeenPwned

Introduction In 2017, Troy Hunt introduced in a blog post a service to allow people to check if a password is known to be already present among the 306 million of leaked passwords from various breaches.1 Of course, it was not recommended to submit your real password or even a hash of it. The following year, Junade Ali from Cloudflare proposed a very...

Wed Apr 17, 2024 10:37
Reversing Windows Container, episode II: Silo to Server Silo

Introduction In the previous article, Reversing Windows Container, episode I: Silo, we introduced the notion of Windows Containers, which are also called Server Silos. We have seen that Server Silos are a special kind of Silos and Silos are super Windows Job Objects. We took Docker as a practical test case to describe step by step the process of...

Wed Mar 27, 2024 00:35
Reversing Windows Container, part II: Silo to Server Silo

Introduction In the previous article, Reversing Windows Container, episode I: Silo, we introduced the notion of Windows Containers, which are also called Server Silos. We have seen that Server Silos are a special kind of Silos and Silos are super Windows Job Objects. We took Docker as a practical test case to describe step by step the process of...

Tue Mar 26, 2024 19:03

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