Standards & Guidelines
6 entriesAuthoritative references.
01NIST SP 800-63 Digital Identity GuidelinesAuthentication assurance levels and requirements.
02FIDO Alliance: PasskeysPhishing-resistant sign-in with passkeys.
03WebAuthn (W3C)Web Authentication API specification.
04OAuth 2.0Authorization framework for delegated access.
05OpenID ConnectIdentity layer on top of OAuth 2.0.
06CISA: Use strong passwordsPractical password guidance.
Guides & Tutorials
6 entriesHow-to material.
07Passwordless authentication (Auth0)Auth0 documentation on passwordless login.
08Is passwordless authentication more secure? (Auth0)Auth0 blog article.
09Email link authentication (Firebase)Firebase guide to email-link sign-in.
10What is multifactor authentication? (Microsoft)Introduction to MFA.
11Magic link authentication (Scaleway)Scaleway console magic-link documentation.
12URL-based authentication links (Stack Overflow)Developer Q&A.
Related Pages
10 entriesNeighbouring pages on this site.
13BiometricsBiometric authentication hub.
14Strong Password AuthenticationStrong password resources.
15Identity as a Service ProvidersIDaaS vendors.
16Privileged Access ManagementPAM products.
17IT SecurityIT security hub.
18Information SecurityOverview of information security.
19CybersecurityCybersecurity hub.
20CryptographyCryptography resources.
21Digital SignatureDigital signature resources.
22Digital CertificationDigital certificates.
Frequently Asked Questions
What is authentication?
Verifying that a user or system is who it claims to be, using something known, held or inherent.
What is a passkey?
A FIDO credential stored on a device that replaces a password and resists phishing.
Where should I start?
NIST SP 800-63 for requirements and the FIDO Alliance for passkeys.
What replaced the older entries?
Dead or outdated links were removed, redirects updated, and standards and current tools added.
How current is this list?
Links were checked in October 2026. Sites that block automated checks are kept and may need a manual click.