SIROS Foundation Blog https://siros.org/blog Insights and thoughts on secure digital identity and open standards. en-us Mon, 02 Nov 2026 00:00:00 GMT Learn Nothing: ZKP pseudonyms and age verification https://siros.org/blog/learn-nothing-zkp-pseudonyms https://siros.org/blog/learn-nothing-zkp-pseudonyms Mon, 02 Nov 2026 00:00:00 GMT How do we verify someone's age online without revealing who they are — and stop bot misuse, block known offenders and recognize returning users in a privacy-preserving way? A first complete proposal for ZKP pseudonyms, presented at the EUDI Wallet Launchpad 2026. info@siros.org (David Magård) Zero knowledge proofs Privacy Use cases Imagine an internet that protects us, even when we make mistakes https://siros.org/blog/imagine-an-internet-that-protects-us https://siros.org/blog/imagine-an-internet-that-protects-us Tue, 27 Oct 2026 00:00:00 GMT After 19 years of Cybersecurity Awareness Month campaigns, Stina Ehrensvärd announces Ten Times Trust: an initiative to build a ten times safer internet in ten years by changing the system around users, not blaming them. info@siros.org (Stina Ehrensvärd) Security Foundation Passkeys Under the hood: privacy-preserving age verification with Longfellow-ZK https://siros.org/blog/multipaz-verifier-demo https://siros.org/blog/multipaz-verifier-demo Mon, 31 Aug 2026 00:00:00 GMT A walkthrough of the SIROS ID + Multipaz verifier demo: an age-over-18 zero-knowledge proof and a site-specific pseudonym, over the W3C Digital Credentials API and OpenID4VP, with video of the full flow. info@siros.org (Peter Altmann) Zero knowledge proofs Privacy Use cases Passkeys Passkeys beyond login https://siros.org/blog/passkeys-beyond-login https://siros.org/blog/passkeys-beyond-login Sat, 25 Jul 2026 00:00:00 GMT YubiKey 5.8 introduces preview support for WebAuthn signing extensions and CTAP 2.3, opening the door to hardware-backed signatures for identity wallets, payments, and verifiable approvals. info@siros.org (Leif Johansson) Passkeys Security Architecture Addressing the transferability issue in the EU’s age verification app https://siros.org/blog/eu-age-verification-transferability-flaw https://siros.org/blog/eu-age-verification-transferability-flaw Tue, 02 Jun 2026 00:00:00 GMT The EU's age verification solution is built on OAuth 2.0, a delegation protocol that allows redemption artifacts to be passed between users. This post breaks down the vulnerability and explores mitigations. info@siros.org (Peter Altmann) Privacy Architecture Use cases A wallet for the research lab? How an early Nordic pilot is testing a new way to unlock sensitive genomic data https://siros.org/blog/a-wallet-for-the-research-lab https://siros.org/blog/a-wallet-for-the-research-lab Mon, 11 May 2026 00:00:00 GMT CSC, Sunet, and SIROS are piloting digital wallets to replace fragmented logins with secure, portable credentials for researchers accessing sensitive genomic data. Pilots Research Use cases Zero Knowledge Proofs: shifting where the work happens https://siros.org/blog/zero-knowledge-proofs https://siros.org/blog/zero-knowledge-proofs Thu, 26 Feb 2026 00:00:00 GMT The SIROS Foundation prioritizes Zero Knowledge Proofs over conventional selective disclosure to ensure national identity wallets achieve superior privacy, long-term scalability, and structural resistance to correlation. info@siros.org (Leif Johansson) Zero knowledge proofs Privacy Cryptography A year in review https://siros.org/blog/a-year-in-review https://siros.org/blog/a-year-in-review Thu, 12 Feb 2026 00:00:00 GMT From launching global pilots across three continents to building the SIROS ID platform, explore our key achievements from our first year and how we are scaling secure digital identity for 2026. info@siros.org (Stina Ehrensvärd) Foundation Updates What Makes a Web Wallet Possible? https://siros.org/blog/what-makes-a-web-wallet-possible https://siros.org/blog/what-makes-a-web-wallet-possible Mon, 19 Jan 2026 00:00:00 GMT SIROS provides a web-first, open-source foundation for digital identity, secured by FIDO passkeys. Identity should be universal, not proprietary. info@siros.org (Leif Johansson) Web wallet Passkeys Architecture Launching a global, web-first foundation for secure, user-controlled digital identity https://siros.org/blog/launching-a-global-web-first-foundation https://siros.org/blog/launching-a-global-web-first-foundation Tue, 09 Dec 2025 00:00:00 GMT How SIROS leverages FIDO passkeys and WebAuthn to overcome the limitations of platform-dependent apps, enabling a high-assurance, privacy-preserving identity wallet that runs entirely in the browser. info@siros.org (Leif Johansson) Foundation Web wallet Passkeys