BOUNDARIES · DECISIONS · EVIDENCE

Reducing ambiguity

PLAYGROUND · interactive demo candidate

Two-Factor Authentication · QR Enrollment

Source name: two way factor authentication scan QRCode

A QR-enrollment demo for a second authentication factor, with attention to one-time challenges, expiry, replay, recovery, and explicit session boundaries.

  • 2FA
  • QR Code
  • OTP
Redacted step-up authentication and QR verification flow created by the portfolio owner
Supporting visual · redacted architecture artifact
01

Evidence

  • Owner-recorded demo
  • Demo and repository links pending
  • Synthetic accounts only
02

Trade-off

A second factor raises assurance but adds enrollment, recovery, clock, and support failure modes.

03

Limitation

The public threat model, recovery path, and replay tests remain pending.

04

References

[DEMO3] · [REPO8] · real links pending

Back to Playground

CONTACT

A useful conversation starts with the boundary

Share the outcome, constraints, current system, and the evidence that is still missing. That is enough to begin reducing ambiguity.

[email protected]