# Opaque, Interoperable Passkey Records (and a Go API)

DevFeed: [Opaque, Interoperable Passkey Records (and a Go API)](<https://devfeed.tech/articles/opaque-interoperable-passkey-records-and-a-go-api-20699.md>)

Original publisher: [Read original article](<https://words.filippo.io/passkey-record/>)

Author: Filippo Valsorda

Published: 2026-07-20T22:33:32Z

Content type: article

Language: en

Sources: [Filippo Valsorda](<https://devfeed.tech/sources/filippo-valsorda.md>)

Topics: [WebAuthn](<https://devfeed.tech/topics/webauthn.md>), [Passkeys](<https://devfeed.tech/topics/passkeys.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>), [Security](<https://devfeed.tech/topics/security.md>), [API](<https://devfeed.tech/topics/api.md>), [passwords](<https://devfeed.tech/topics/passwords.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [go](<https://devfeed.tech/tags/go.md>), [password](<https://devfeed.tech/tags/password.md>), [security](<https://devfeed.tech/tags/security.md>), [web](<https://devfeed.tech/tags/web.md>), [web-developers](<https://devfeed.tech/tags/web-developers.md>)

## AI overview

The article proposes interoperable passkey record encodings for WebAuthn credentials, allowing applications to store records as opaque strings similar to password hashes. It also presents a potential Go API for handling these records.

## Source excerpt

Passkey records are an interoperable format for WebAuthn credentials, similar to password hash strings. I propose a potential crypto/passkey Go API based on them.