We follow up on the recent Mythos attack against PQC candidate HAWK. We discuss the impact of this attack on both HAWK and FALCON.
Tim Callan
Tim Callan has over 20 years of experience in the SSL and PKI technology spaces. Tim leads Sectigo's conformance with industry and regulatory requirements including browser root programs, WebTrust, CA/Browser Forum, and more. Tim is instrumental in driving initiatives to improve certificate agility and successful issuance. A founding member of the CA/Browser Forum and current vice-chair for one of its working groups, Tim is creator and co-host of Root Causes: A PKI and Security Podcast, the world’s most popular podcast dedicated to digital certificates. With 400+ episodes published, Tim is on the forefront of explaining trends that will be essential to the IT professionals, including shortening certificate lifespans and the coming change to post-quantum cryptography.
Recent posts by Tim Callan
TLS certificates from CA/Browser Forum CAs are not the only server certificates in the WebPKI. eIDAS QWACs are treated as server certificates by the major browsers. We see clear progress toward post quantum cryptography (PQC) for TLS by way of the Merkle Tree Certificate (MTC) architecture. But what is the path to PQC for eIDAS? We examine this question.
As certificate lifespans become extremely short, new methods of delivery become functionally necessary. We explain RFC 9345 and how delegated credentials play a role in CDNs to deliver very short-lived certificates.
With certificate lifespans shortening, we occasionally run into those who disagree with this trend and seek to lengthen maximum term once again. We examine regressive attitudes in PKI, why they occur, and the reasons that lessening security is generally a bad policy.
X9 is a consortium certificate for interbanking applications. There is a common misunderstanding that X9 certificates are a public-trust surrogate for mTLS using WebPKI certificates. We clarify why this is not the case.
"Chaos engineering" describes the practice of injecting faults into a system to see what happens. This is a known strategy for deterministic systems, but with the advent of non-deterministic AI systems, chaos engineering has taken on greater importance.
Since frontier-model AIs have been trained on a large portion of published human knowledge, widespread publication of incorrect information can taint AI results. As more AI-generated slop finds its way onto the internet, this runs the risk of further poisoning AI results. This ultimately can result in completely unusable information.
It is possible to use common tools like OpenSSL to create your own ML-DSA private CA. This is a great tool for development and research projects, but Jason explains the pitfalls with trying to do this for production systems.
We are replacing RSA with the combination of ML-DSA and ML-KEM. We explain the naming convention and specifically what these two algorithms do.
