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"
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"
Digital Agency: First Expert Meeting on Attribute Certification Issues
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
NIST SP 800-63B-4: Understanding the New Password Security Standard (with significant updates on November 7th)
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)
[Breaking News] The future of digital IDs is changing! OpenID Foundation responds to regulations and market competition with third-party authentication services!
The OpenID Foundation, which sets international standards for digital identity, has announced that it will launch a new authentication service in the second quarter of 2026! This is a groundbreaking service that strengthens collaboration with management organizations and certification testing bodies in addition to its current self-certification service (which already has over 4,000 successful cases).
Further display [Breaking News] The future of digital IDs is changing! OpenID Foundation responds to regulations and market competition with third-party authentication services!
Surveillance or efficiency? UK's "mandatory digital ID wallet" policy undergoes a major transformation ~ Over 160 million signatures against it overnight (Parliamentary petition)
As we reported in X, on September 26th, the UK government announced plans to introduce digital IDs through the "GOV.UK Digital Wallet." This has sparked a major debate in the digital society, with calls for efficiency clashing with concerns about privacy violations. Of particular note is...
Further display Surveillance or efficiency? UK's "mandatory digital ID wallet" policy undergoes a major transformation ~ Over 160 million signatures against it overnight (Parliamentary petition)
We have sent a letter of opinion in response to the Ministry of Internal Affairs and Communications' public comment request for the 2025 (draft) report of the Study Group on the Realization of a Safe and Secure Metaverse.
First of all, I think this is a very well-written draft report. I would like to express my respect to the secretariat and the committee members. I have only made the following two points: (3) Trends in international organizations (relevant section) ② Following ITU-T (opinion) In the section on ITU-T, it also mentions ISO...
Further display We have sent a letter of opinion in response to the Ministry of Internal Affairs and Communications' public comment request for the 2025 (draft) report of the Study Group on the Realization of a Safe and Secure Metaverse.
Public comments have been submitted to the Financial Services Agency regarding the partial revision (draft) of the "Comprehensive Supervision Guidelines for Financial Instruments Business Operators, etc."
The US OpenID Foundation has submitted the following public comments regarding the proposed revisions to the "Comprehensive Supervision Guidelines for Financial Instruments Business Operators, etc." (← addressing so-called securities fraud). The US OpenID Foundation website is only available in English, so there is no appropriate space to post the Japanese version.
Further display Public comments have been submitted to the Financial Services Agency regarding the partial revision (draft) of the "Comprehensive Supervision Guidelines for Financial Instruments Business Operators, etc."
MyDataJapan has submitted public comments to the Ministry of Internal Affairs and Communications' "Interim Summary of Issues (Draft) of the Study Group on the Method of Access Restriction Related to Online Casinos"
On August 8th, MyDataJapan submitted a public comment to the Ministry of Internal Affairs and Communications' "Interim Summary of Issues (Draft) of the Study Group on the Method of Restricting Access to Online Casinos." As usual, we would like to thank the MyDataJapan Public Policy Committee (Chairman Ryoji Mori) and others for their hard work...
Further display MyDataJapan has submitted public comments to the Ministry of Internal Affairs and Communications' "Interim Summary of Issues (Draft) of the Study Group on the Method of Access Restriction Related to Online Casinos"
Giordani's "Caro mio ben": background, lyrics, and recommended performances
Background of the creation of Caro mio ben "Caro mio ben" is an 18th-century Italian song (allietta) that translates to "My dear lady" in Japanese. It was primarily composed by Tommaso Giordani (1730–1806)...
Further display Giordani's "Caro mio ben": background, lyrics, and recommended performances
A unique theme song that will remain in anime history - The secret behind the Latin lyrics of "Lilium"
There is a song called Lilium (White Lily). It is a song with Latin lyrics written by Konishi Koba and Kondo Yukio (MOKA☆) for the anime "Elfen Lied." As the opening theme, it plays against a background image inspired by Klimt's paintings, and a music box version of the song is played as a key to memories in the story.
Further display A unique theme song that will remain in anime history - The secret behind the Latin lyrics of "Lilium"