17 Key, it controls communication, ensures security, manages access rights, and tracks key movements. Without a backend, there is no interface; without an interface, there is no interaction between vehicle and device. The CCC has also recognized the importance of the backend – as evidenced by the November 2025 CCC Plugfest. This time, the event didn’t take place in Detroit or Silicon Valley, but in Friedrichshafen on Lake Constance. The host is mid-sized software company doubleSlash , the first backend provider ever to host a CCC Plugfest. The Software Behind Tomorrow’s Vehicle Key doubleSlash is no unknown player in the ecosystem. For more than 25 years, the company has worked with OEM backends and processes and has already implemented the Digital Key for several automotive brands. The proprietary software solution doubleSlash Digital Key enables vehicle manufacturers to comply with the CCC standard without being locked into a specific hardware architecture. The software is based on an interface-only architecture and is hardware- and infrastructure-agnostic. This enables seamless and efficient integration into existing OEM infrastructures, architectures, and processes. For manufacturers, this means: less complexity, reduced time-tomarket - and thus competitive advantages when it comes to new models or mobility functions in their fleets. “A market-ready Digital Key requires more than a single technical component,” explains Manuel Teufel, Product Manager Digital Key at doubleSlash. “What really matters is the interaction between the vehicle, software, and the smartphone ecosystem – particularly with regard to security, integration, and user processes. The CCC standard provides the central framework for this.” Technically, the solution offers advantages through operation as SaaS or PaaS models: scalability, automated updates, and clearly defined support and maintenance processes are guaranteed from the start. Additionally, the software is hardware-independent and compatible with all CCC-compliant components, ensuring interoperability between vehicles, mobile devices, and backend systems. New business models can not only be developed but also sustainably scaled. The solution remains consistently compliant with common standards and security requirements. Since 2026, the doubleSlash Digital Key solution has been CCC-certified in the categories “Vehicle OEM” and “Vehicle OEM Server.” This certification, along with doubleSlash’s active contribution to the ongoing development of the standard, underscores the company’s commitment to developing future-proof, interoperable, and proven Digital Key solutions for tomorrow’s mobility. For OEMs, this provides additional planning security: the Digital Key can be deployed in a standards-compliant, scalable, and long-term manner across entire vehicle fleets – including new vehicle classes, models, or software releases. A Complex Ecosystem United by the CCC Standard When the global automotive elite met with tech giants at Lake Constance from November 10th to 14th, the focus was on interoperability, new features, and future hardware standards like Ultra-Wideband (UWB), Bluetooth Low Energy (BLE), and Near Field Communication (NFC). While OEMs tested their setups on indoor and outdoor surfaces, device manufacturers rotated between vehicle cabins, testing Digital Key solutions in direct collaboration with smartphone manufacturers. The event placed the highest demands on security and confidentiality: even though all participants agree on the CCC standard, they remain competitors in the race for revenue, data, and customer relationships. As digital vehicle access becomes more widespread, interoperability is turning into a business-critical factor. Plugfests provide the necessary reality check to ensure that standards are not only defined, but remain functional over time. It is becoming increasingly clear that the success of the Digital Key is determined not solely in the vehicle or on the mobile device, but in the backend as the connecting layer between both worlds. Those who adopt standardized, tested, and certified solutions at an early stage lay the foundation for secure and scalable mobility concepts – today and in the future. www.doubleslash.de Modular Digital Key architecture: the backend connects vehicle, hardware and mobile devices, enabling standards-compliant interoperability across the entire value chain. doubleSlash Since 1999, doubleSlash has been developing software solutions under the guiding principle „We create digital value“ for medium-sized and internationally operating companies. With around 250 employees at three locations in Friedrichshafen, Munich, and Stuttgart, the company achieved annual revenue of €29 million in 2025. The focus lies in the business areas Connect, Make Smart, and Monetize: connecting devices and digital ecosystems, driving progress with data and AI innovations, automating and making better decisions, as well as enabling successful digital business models with monetizable products and services. As a software partner, doubleSlash thinks holistically from the data foundation to the business model in cross-cutting ecosystems – and develops intelligent, secure, and sustainable solutions.
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