Anonymous age verification with passkey-powered encryption
This project has been kicking around in my head since I first heard about the webauthn PRF extension in early 2024. I've slowly chipped away at it since, and finally got things to a shareable state over the summer thanks to a very fun parental leave. Headed back to work tomorrow, so I figure there's no time like the present. tldr: A client-held encryption key derived during passkey authentication encrypts all sensitive user data prior to persistence so that only the user is able to decrypt and reuse that data on their device. This allows short-lived, privacy-preserving age proofs to be…
Anonymous age verification with passkey-powered encryption launched on August 19, 2026 with 45 votes, #625 of 23,274 launches that month and more than 95% of that year's launches.
In plain words
Anonymous age verification with passkey-powered encryption is a privacy-focused identity platform that uses passkey authentication and user-held encryption keys to verify age without exposing personal information. Sensitive data remains encrypted on users' devices, enabling one-tap age confirmation for applications needing proof of personhood while preventing unauthorized access. It's designed for AI platforms combating bot accounts and automated model distillation, but serves any application requiring frictionless identity verification without traditional password vulnerabilities or slow email-based flows.
written from the facts on this page · September 2026
From the sources
Private, passkey-first identity with user-held encryption and anonymous age verification.
Passkey-first authentication. Universal Identity. Private by design. Sensitive data stays encrypted at rest. No readable Personal Identifiable Information (PII) is stored. User-held encryption keys unlock reusable, one-tap age verification without exposing sensitive data. One-tap, anonymous confirmation that an account belongs to a verified person. Designed for AI platforms working to limit bot accounts and prevent automated model distillation, but useful anywhere an application needs frictionless proof of personhood. Passwords can be guessed or phished. Email login flows are slow and vulnerable to phishing. Passkeys are fast and phishing-resistant. Some applications need to know that a…from loginwithone.com
In the maker’s words, at launch
This project has been kicking around in my head since I first heard about the webauthn PRF extension in early 2024. I've slowly chipped away at it since, and finally got things to a shareable state over the summer thanks to a very fun parental leave. Headed back to work tomorrow, so I figure there's no time like the…
Does a similar job
all alternatives →- NANextDNS Adds "Bypass Age Verification"2025 · ▲537
We just shipped a new feature in NextDNS: Bypass Age Verification. More and more sites (especially adult ones) are now forcing users to upload IDs or selfies to continue. We think that’s a terrible idea: handing over government documents to random sites is a huge privacy risk. This new setting workarounds those verification flows via DNS tricks. It’s available today to all users, including free accounts. We’re curious how the HN community feels about this. Is it the right way to protect privacy online, or will it just provoke regulators to push harder? https://nextdns.io
Anonymous Age Verification2025 · gist.github.com · ▲71So I'm not an expert in this area, but here's an attempt at cost effective, anonymous, age verification flow that probably covers ~70% of use cases in the United States. The basic premise is to leverage your bank (who already has had to perform KYC on you to open an account) to attest to your age for age-restricted merchant sites (pornhub, gambling, etc) without sharing any more information than necessary. Flow works like this: 1) You go to gambling.com 2) They request you to verify your age 3) You choose "Bank Verification" 4) You trigger a WebAuthn Credential Creation flow 5) gambling.com…
Age 1.0 – Simple, modern and secure file encryption2021 · github.com · ▲494A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability. - Release age v1.0.0 🏁 · FiloSottile/age
Biometric Authentication by Passbase2021 · parallelmarkets.com · ▲218Combining identity verification and secure user logins
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