Passwordless Authentication

Deploy phishing-resistant sign-in with FIDO2 / WebAuthn—built for .NET and designed to reduce risk, tickets, and login friction.

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Phishing-Resistant

Public-key cryptography bound to your domain—no shared secrets to steal, replay, or brute-force. Stops password reuse and credential stuffing at the root.

Delightful UX

One-tap sign-ins with platform authenticators (Touch ID, Windows Hello, Android, iOS passkeys) or roaming keys—fast, intuitive, and support-friendly.

.NET-Native

Use mature, open-source WebAuthn libraries for C# with clean MVC integration, strong attestation options, and secure server-side key handling.

How Passwordless Works

WebAuthn registers a unique keypair per user and per site. The private key never leaves the authenticator; the server stores only the public key. On sign-in, the authenticator produces a signed challenge scoped to your origin—so stolen prompts and fake domains fail.

  1. Register — User verifies locally (biometric/PIN) and creates a keypair.
  2. Bind — Your server stores the public key and metadata.
  3. Authenticate — Challenge/response proves possession of the private key.
  4. Elevate — Use as first-factor, second-factor, or step-up without OTP fatigue.
  • Resident/non-resident credentials & discoverable passkeys
  • Device & roaming authenticators with attestation options
  • Server-side verifications and origin binding
Passwordless / WebAuthn flow

Implementation Options

Choose a rollout that fits your risk profile and roadmap—without locking the front-end to a single framework.

Passkeys First

Lead with platform authenticators; fall back to OTP only when needed. Ideal for workforce and high-value customer portals.

  • Fast user adoption
  • Lower support tickets
Progressive Rollout

Keep current MFA, introduce WebAuthn for new sessions and step-up. Measure conversion and risk reduction before expanding.

  • Minimal disruption
  • Data-driven adoption
BFF + WebAuthn

Pair passwordless with a Backend-for-Frontend so tokens never sit in the browser—tightening end-to-end posture for SPAs and MVC.

  • Mitigates XSS token theft
  • Clear separation of concerns
Operations

Instrument the full auth journey to keep security and UX healthy as adoption grows.

  • Registration & success rates, fallback share
  • Attestation policies & device coverage
  • Audit trails for regulators and SOC
Developer Experience

Ship quickly with C# helpers, clean controller actions, and environment-safe config.

  • MVC & SPA samples
  • Test harness for authenticators
  • CI/CD-ready with IaC hooks

FAQ

Yes. Workforce users often start with platform authenticators (Windows Hello, Touch ID), while customers adopt passkeys tied to their devices or accounts. We tune policies per audience and risk.

We combine secure recovery (e.g., verified backup factors or help-desk flows) with inventory and attestation policies. Recovery is auditable and minimizes social-engineering exposure.

Passwordless can act as a strong single factor for many use cases. For higher assurance, we layer additional signals or step-up policies—without bringing passwords back.

Ready to go passwordless?

We’ll design a rollout for your apps—pilot to production—with WebAuthn, passkeys, and governance that teams can trust.

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