Automotive Digital Key

Secure vehicle access solution based on CCC standards
Digital Key in phone for a vehicle image

Custom Digital Key Development Solution in compliance with CCC standards.

As vehicles become increasingly connected and software-defined, traditional key fobs and keyless entry systems face growing cybersecurity risks including unauthorized access, relay attacks, and credential theft.

At the same time, shared mobility and delegated access services require more secure and scalable credential management across mobile, cloud, and vehicle environments.

Automotive Digital Key is a customizable solution designed to align with the latest Car Connectivity Consortium (CCC) Digital Key specifications, featuring a customizable high-security applet that strengthens credential protection and seamless integration with diverse OEM vehicle architectures and security policies.

Automotive Digital Key provides a highly secure and convenient lock-and-key system for OEM, fleet, and shared mobility applications through standards-based authentication, cryptographic key management, and secure communication between cloud, mobile, and in-vehicle environments.

Overview

Automotive Digital Key Coverage

Built on a certificate chain-of-trust authentication system for vehicle-to-device (V2D) communications, the solution supports secure communication channels between the Key Tracking Server, Vehicle OEM Server, Vehicle CCC Applet & Host API, and the Relay Server.

Automotive Digital Key Architecture

AutoCrypt® Testkit enables OEMs and suppliers to validate Digital Key interoperability and functionality against CCC Digital Key specifications before vehicle-level deployment, streamlining integration and accelerating rollout readiness.

Backend credential governance AutoCrypt® VOS & KTS

AutoCrypt® Vehicle OEM Server (VOS) and Key Tracking Server (KTS) manage Digital Key credential lifecycle governance across mobile, cloud, and vehicle environments. Supporting delegated access control and audit tracking, the architecture enables owner pairing, key sharing, and access termination for OEM and mobility service ecosystems.

In-Vehicle Digital Key operation with CCC Applet & CCC Host API
In-Vehicle Digital Key operation with CCC Applet & CCC Host API

The CCC Applet and CCC Host API enable secure Digital Key operation within the vehicle Body Domain Controller (BDC) environment. Operating through the Secure Element, the CCC Applet performs credential storage and cryptographic processing, while the CCC Host API supports authenticated communication between vehicle systems and backend infrastructure.

The architecture supports emerging CCC Digital Key R4.0 capabilities, including server-generated keys, delegated access control, and fleet-oriented credential management, while building on production-proven deployment experience from CCC Digital Key R3.0 implementations.

Capabilities

Complete Vehicle Access Control

Designed to meet diverse needs, the solution supports multiple deployment models to establish secure vehicle access infrastructure for OEMs, fleet operators and end users.

Digital Key Application for Diverse Users (OEMs, Users, Fleet Operators)

OEMs

On-Premise Server Deployment
  • Provides centralized, server-based control over key issuance and revocation
  • Cloud-accessible via API and seamless integration with third-party services
  • Compliant with CCC Digital Key 4.0 standard

Users

Simple Access Protection
  • Offers immediate secure vehicle access without approval from owner
  • Delivers a simplified, convenient experience for rentals, shared mobility, and temporary access scenarios
  • Flexible key sharing options with peers and service providers

Fleet Operators

Centralized Access Control
  • Allows instant, automated key generation for drivers, optimizing large-scale fleet operations
  • Enables remote, software-driven vehicle access control
  • Consulting available for user and vehicle authentication workflow setup

Application

Joint Digital Key Management Solution

At IAA Mobility 2025, AUTOCRYPT announced a strategic partnership with Valtech Mobility GmbH (Link) and unveiled a jointly developed demo of a Digital Key Solution with Ultra-Wideband (UWB) technology.

Digital Key Solution Co-developed with Valtech Mobility GmbH
  • Convenient Unlock & Start
  • Prevention of Unauthorized Access
  • Secure Key Sharing with Others
  • Personalized Digital Key Access