Compound-Angle Reversible Dimple Cuts Immune to Optical Smartphone Cameras
Engineering Overview: Technical guide on designing key bitting profiles with hidden undercuts, dual angles, and stepped paracentric profiles immune to smartphone photo decoding.
Technical & Engineering Specifications
| Standard | VdS Commercial High Security |
|---|---|
| Key Security | Impossible to decode from flat 2D photographs |
| Security Threat | 2D Optical Camera Scanning & Smartphone App Decoding |
| Defensive Architecture | Compound-Angle Dimple Cuts & Internal Wave Grooves |
Anti-Optical Design Features
High-resolution smartphone cameras allow attackers to photograph a key and decode bitting depths with mobile apps.
Defense
- Compound-Angle Dimple Cuts: Bitting dimples milled at compounding $15^\circ$ left/right angles that cannot be measured from flat 2D photos.
Frequently Asked Engineering & Selection Questions
Q1: How does this keying system optimize facility access?
Technical guide on designing key bitting profiles with hidden undercuts, dual angles, and stepped paracentric profiles immune to smartphone photo decoding.