We’re getting Sigstore’s rekor-monitor ready for production use, making it easier for developers to detect tampering and unauthorized uses of their identities in the Rekor transparency log.
See how we slashed PyPI’s test suite runtime from 163 to 30 seconds.
The techniques we share can help you dramatically improve your own project’s
testing performance without sacrificing coverage.
We’re working on integrating an ASN.1 API into PyCA Cryptography,
built on top of the same Rust ASN.1 implementation already used by
Cryptography’s X.509 APIs.
PyPI now supports marking projects as archived. Project owners can now archive their project to let users know that the project is not expected to receive any more updates. Project archival is a single piece in a larger supply-chain security puzzle: by exposing archival statuses, PyPI enables downstream consumers to make more […]
For the past year, we’ve worked with the Python Package Index (PyPI) on a new security feature for the Python ecosystem: index-hosted digital attestations, as specified in PEP 740. These attestations improve on traditional PGP signatures (which have been disabled on PyPI) by providing key usability, index verifiability, cryptographic strength, and provenance properties that bring […]
For the past eight months, Trail of Bits has worked with the Python Cryptographic Authority to build cryptography-x509-verification, a brand-new, pure-Rust implementation of the X.509 path validation algorithm that TLS and other encryption and authentication protocols are built on. Our implementation is fast, standards-conforming, and memory-safe, giving the Python ecosystem a modern […]
This is a joint post with Alpha-Omega—read their announcement post as well! We’re starting a new project in collaboration with Alpha-Omega and OpenSSF to improve the transparency and security of Homebrew. This six-month project will bring cryptographically verifiable build provenance to homebrew-core, allowing end users and companies to prove that Homebrew’s packages come from the official Homebrew CI/CD.
Read the official announcement on the PyPI blog as well! For the past year, we’ve worked with the Python Package Index to add a new, more secure authentication method called “trusted publishing.” Trusted publishing eliminates the need for long-lived API tokens and passwords, reducing the risk of supply chain attacks and credential leaks while also […]
Trail of Bits has launched a practice focused on machine learning and artificial intelligence, bringing together safety and security methodologies to create a new risk assessment and assurance program. This program evaluates potential bespoke risks and determines the necessary safety and security measures for AI-based systems.
A new tool for Windows RPC research. Trail of Bits is releasing a new tool for exploring RPC clients and servers on Windows. RPC Investigator is a .NET application that builds on the NtApiDotNet platform for enumerating, decompiling/parsing and communicating with arbitrary RPC servers. We’ve added visualization and additional features that offer […]
Read the official announcement on the Sigstore blog as well! Trail of Bits is thrilled to announce the first stable release of sigstore-python, a client implementation of Sigstore that we’ve been developing for nearly a year! This work has been graciously funded by Google’s Open Source Security Team (GOSST), who we’ve also […]
Andrew Haberlandt During my summer internship at Trail of Bits, I worked on the fork of the RBPF JIT compiler that is used to execute Solana smart contracts. The RBPF JIT compiler plays a critical role on the Solana blockchain, as it facilitates the execution of contracts on validator nodes by default. Before my […]
Originally published on October 6, 2021 TL;DR: Version 5.0.1 of osquery, a cross-platform, open-source endpoint visibility agent, is now available. This release is an exciting milestone for the project, as it introduces an EndpointSecurity-based process events table for macOS. Read on to learn how we integrated EndpointSecurity into osquery […]
TL;DR: Sinter is the first available open-source endpoint protection agent written entirely in Swift, with support for Apple’s new EndpointSecurity API from first principles. Sinter demonstrates how to build a successful event-authorization security agent, and incorporates solutions to many of the challenges that all endpoint protection agents will face as they migrate from kernel-mode to […]
(This posting is cross-posted between the Zeek blog and the Trail of Bits blog). The Zeek Network Security Monitor provides a powerful open-source platform for network traffic analysis. However, from its network vantage point, Zeek lacks access to host-level semantics, such as the process and user accounts that are responsible for any connections observed. The […]
Has it really been 3 months since Trail of Bits hosted QueryCon? We’ve had such a busy and productive summer that we nearly forgot to go back and reflect on the success of this event! On June 20-21, Trail of Bits partnered with Kolide and Carbon Back to host the 2nd annual QueryCon, at the […]
During my summer at Trail of Bits, I took full advantage of the latest C++ language features to build a new SQLite wrapper from scratch that is easy to use, lightweight, high performant, and concurrency friendly—all in under 750 lines of code.
People interested in joining Trail of Bits often ask us what it’s like to work on the Engineering Services team. We felt that the best answer would be a profile of some of the talented individuals on our team, and let them describe their experiences at Trail of Bits in their own words. Today, we’re […]
Since March, Trail of Bits has been working with the Python Software Foundation to add two-factor authentication (2FA) to Warehouse, the codebase that powers PyPI. As of today, PyPI members can enable time-based OTP (TOTP) and WebAuthn (currently in beta). If you have an account on PyPI, go enable your preferred 2FA method before you […]
For months, Facebook has been heavily refactoring the entire osquery codebase, migrating osquery away from standard development tools like CMake and integrating it with Facebook’s internal tooling. Their intention was to improve code quality, implement additional tests, and move the project to a more modular architecture. In practice, the changes sacrificed support for a number […]
We open-sourced a fault injection tool, KRF, that uses kernel-space syscall interception. You can use it today to find faulty assumptions (and resultant bugs) in your programs. Check it out! This post covers intercepting system calls from within the Linux kernel, via a plain old kernel module. We’ll go through a quick refresher on syscalls […]
We’re proud to announce the release of Winchecksec, a new open-source tool that detects security features in Windows binaries. Developed to satisfy our analysis and research needs, Winchecksec aims to surpass current open-source security feature detection tools in depth, accuracy, and performance without sacrificing simplicity. Feature detection, made simple Winchecksec takes a Windows PE binary […]
Access Control Lists (ACLs) are an integral part of the Microsoft Windows security model. In addition to controlling access to secured resources, they are also used in sandboxing, event auditing, and specifying mandatory integrity levels. They are also exceedingly painful to programmatically manipulate, especially in Rust. Today, help has arrived — we released windows-acl, a […]
An increasing number of organizations and companies (including the federal government) rely on open-source projects in their security operations architecture, secure development tools, and beyond. Open-source solutions offer numerous advantages to development-savvy teams ready to take ownership of their security challenges. Teams can implement them to provide foundational capabilities, like “process logs” or “access machine […]
