March 2026 was an extremely busy month for me, with standards-related meetings including JTC 1/SC44, SC27, and IETF, just among my acquaintances. ISO/IEC JTC 1: There are various things I can't write about regarding ISO-related matters, so this is just a brief overview. SC27 (Information Security, Cybersecurity and Privacy…)
Further display ID Technology Trends in March 2026
Summary: On my main phone, a Pixel 10 Pro XL, Facebook Messenger suddenly stopped working, getting stuck on "Waiting for network connection." When I tried to reinstall it, I couldn't even install it. I contacted Chatgpt, and they said it was related to Play Services…
Further display My experience with Messenger on my Pixel getting stuck on "Waiting for network connection" and being unable to reinstall it, and how I solved the problem.
On March 6th, I appeared at a Japan Fintech Week-related event hosted by FINOLAB, titled "Towards the Implementation of AI Agent Payments: From Governance to Authentication and Authorization." My speech was to be with Shibata-san, but despite the script he had written for me, I completely overstepped the bounds of my bounds...
Further display I spoke at FINOLAB's "Towards the implementation of AI agent payments - from governance to authentication and authorization"
The source code for the Persona front-end used by Discord for age verification was accidentally made public. Analysis of this code has caused a stir, as it was discovered that, while it was supposed to be performing "age verification," it also had modules that compared facial images with watchlists and PEPs, and reported directly to the government.
Further display Discord is on fire after authorities report codes and other information were found in Persona code, which is supposed to be used for age verification
This is my customary end-of-year greeting. I had been planning to perform "Lilium" this year, but upon hearing the news of my dear friend Andrew Nash's passing (although it was only three months ago), I quickly switched to "In Paradise," the final movement of Fauré's Requiem. This performance is for Andrew, and for the memory that lives on through the work they left behind...
Further display Year-end Greetings: Faure's "In Paradise - Requiem Op.48" - In Memory of Andrew Nash
As I announced on X (I often don't have time to write a blog, so I hope you'll follow X), today is the 12th FIDO Tokyo Seminar ~Towards a Password-Free World~. ~Phishing Prevention Using "Passkeys" and the Latest Trends~ will be introduced throughout the conference...
Further display 12th FIDO Tokyo Seminar - Towards a Password-Free World -
I'm writing this on the day of the event, or rather, right now (12/4 9:45 AM) at my desk preparing for the panel, and I will be appearing on the panel mentioned above. There will be an 8-minute presentation on the panel, and the thumbnail is the cover of that presentation. Once it's finished, I'll upload the materials here. [Updated 13:23] Here are the materials. Please review them.
Further display Participating in the panel "Current Status and Future of OSS Initiatives in Economic Security" at Okinawa Open Days
1. The Birth of RFC 9901 On November 19, 2025, the specification for "Selective Disclosure for JSON Web Tokens," commonly known as SD-JWT, was published as RFC 9901. The authors are the following three people: JSON Web…
Further display Congratulations on RFC 9901! SD-JWT Becomes an Internet Standard -- New Rules for "Show Only What You Need" in the Era of Digital ID Wallets ~ "SD-JWT: An Overview of the Core Format Supporting Verifiable Credentials and Identity Wallets"
This is a bit old news, but I participated remotely as a committee member in the first meeting of the Digital Agency's "Expert Meeting on Attribute Certification Issues," held on October 23rd. It was the autumn tour season, so... However, perhaps due to Microsoft Teams or the microphone, I could only hear about two-thirds of what was being said, and I couldn't hear what was going on behind the scenes...
Further display Digital Agency: First Expert Meeting on Attribute Certification Issues
SP 800-63-4B, published by the National Institute of Standards and Technology (NIST), provides the latest guidelines on password security, and includes content that overturns conventional wisdom (which has long been accepted as common knowledge among experts). This article provides an easy-to-understand explanation of the core points of this important document for those in charge of password-based user authentication systems within companies, as well as those responsible for setting such policies and managers.
Further display NIST SP 800-63B-4: Understanding the New Password Security Standard (with significant updates on November 7th)