EnOcean's PTM 215, the first energy harvesting switch module integrating rolling code, offers data encryption for secure wireless communication in smart home, security access control systems and other critical applications.
In addition, EnOcean has expanded its DolphinAPI function library with new data decryption and encryption functions to enable easy and fast integration of security features in existing OEM Dolphin-based products.
The EnOcean PTM 215 module creates a 16 bit rolling code for each wireless telegram. The telegram header, telegram data and current rolling code in turn form the basis for generating a 24 bit message authentication code (MAC). The receiving system can use this code to check the authenticity of the data package.
The self-powered switch module harvests the energy it needs for generating the rolling code telegram and the wireless transmission with the help of the ECO 200 mechanical energy converter.
Furthermore, the new security features of the API can be used to expand customer-specific firmware, running on Dolphin modules. Here, EnOcean has adopted a modular security concept. By adding data security this in turn brings an increase in energy requirements. Manufacturers can control this by combining encryption mechanisms according to the individual demands of a particular solution.
“Machine-to-machine (M2M) communication and smart home systems connect more and more devices to each other. Exchanging personal or business data within these solutions requires a secure data transmission to prevent unauthorised access. The new switch module PTM 215, as well as the additional security features of DolphinAPI, enables our customers to secure the communication of their devices accordingly,” says Frank Schmidt, Chief Technology Officer of EnOcean. “Thereby, OEMs applying energy harvesting wireless technology can meet all requirements of network applications in terms of flexibility, comfort, zero maintenance and data security."
For more information, visit www.enocean.com