PPhying中文
Curated security research, vulnerabilities, advisories and tools for practitioners.

Differential fuzzing for cryptography

blog.quarkslab.com | research | #fuzzing | #cryptography | #vulnerability | #libafl | #differential-fuzzing | #tool
📄 Raw .md⬇️ Download .md🔗 Original ↗

Summary

A review of differential fuzzing for cryptography: how comparing outputs of similar implementations uncovers logic bugs and undefined behavior, plus key tools and internship results.
Published
Collected

Related coverage

research · blog.quarkslab.com
State of Post-Quantum Cryptography implementations
In this blogpost, we first review the landscape of Post-Quantum Cryptography implementations across some of the most popular cryptographic libraries. Following that, we present the results of a differential fuzzing campaign on few of the presented implementations.
vulnerability · blog.quarkslab.com
MbedTLS Security Audit
At the request of the Open Source Technology Improvement Fund (OSTIF), Quarkslab performed a security audit of mbedTLS, evaluating the security of the changes in version 4.0.
research · blog.quarkslab.com
Bypassing Android Hardware Attestation from the Analyst's Chair
Hardware key attestation lets an Android app prove to its backend that a key lives in secure hardware on a locked, verified device. It is also the wall that stops a security analyst working on a rooted phone. This article opens the mechanism from the analyst's chair, from the certificate chain and the attestation extension down to the root of trust, then shows a simple bypass that never touches the secure hardware. We relay the attestation to a clean device and splice a genuine chain back into the target app with a Frida hook. A companion repository ships the validation backend, the demo apps and the instrumentation, so the whole setup can be run and inspected rather than taken on faith.
research · blog.quarkslab.com
SightHouse: Automated function identification
Quarkslab presents SightHouse, an open-source reverse-engineering tool that retrieves program metadata and identifies functions already known from other libraries, binaries or online source code.
research · blog.quarkslab.com
Getting started with Wirego
An introduction to Wirego, a Quarkslab tool that funnels Wireshark's plugin API over ZMQ so reverse engineers can write dissectors in friendly languages such as Python or Go.
research · blog.quarkslab.com
ProxyBlobing into your network
Quarkslab built a SOCKS5 proxy that tunnels traffic through Azure Blob Storage, abusing a wildcard firewall allowance to reach the internet from a restricted VDI during an assumed-breach test.
Back