Published on: 2025-06-23 02:05:36
Ten years ago this week, in May 2015, the JSON Web Token (JWT) became RFC 7519. This was the culmination of a 4.5 year journey to create a simple JSON-based security token format and underlying JSON-based cryptographic standards. The full set of RFCs published together was: It’s certainly the case that we co-designed JWT and its underpinnings with OpenID Connect, while also attempting to create general-purpose, widely useful standards. Given the adoption that’s ensued, it seems that we succeede
Keywords: json jwt practices specification token
Find related items on AmazonPublished on: 2025-06-29 21:56:10
Don’t Use ISO/IEC 14977:1996 Extended Backus-Naur Form (EBNF) David A. Wheeler If you need to define a language (such as a programming language or complex data structure) it’s often helpful to use some kind of Extended Backus-Naur form (EBNF). Often people do a Google search, find out that there’s an ISO/IEC standard (ISO/IEC 14977:1996), and then just use it... without realizing that this very old ISO/IEC standard has a lot of problems and should not be used. In this essay I will briefly exp
Keywords: 14977 iec iso specification use
Find related items on AmazonPublished on: 2025-09-25 18:47:03
Postel's Law and the Three Ring Circus Postel’s Law famously states that “implementations should follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.” For many years, this was considered a bedrock design principle for internet ecosystems, but in recent years it has fallen out of favor. In this post I will explain the deterioration that ecosystems which endeavor to follow Postel’s Law frequently experience, and why it produces parti
Keywords: data open software source specification
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