Open Smart Grid Protocol

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The Open Smart Grid Protocol (OSGP) is one of a series of publications issued by the European Telecommunications Standards Institute (ETSI) related to the ISO / IEC 14908 Control Networking Standard For Smart Grid Applications. OSGP is optimized for the reliable and efficient transmission of control and monitoring information for smart meter and load control modules, solar panels, gateways and other smart grid devices. With over 3.5 million OSGP-based smart meters and devices shipped worldwide, it is one of the most widespread and widely used smart meter and smart grid device network standards.

Protocol layers and functions

OSGP follows a structured approach, based on the OSI layer model, in order to continuously develop the challenges of smart grids. In the application layer ETSI GS OSG 001, a table-oriented data memory and a command system are made available that are not only used by smart meters and related data, but also as a general extension for other smart grid devices. OSGP is designed to be very bandwidth efficient. It offers high performance and only requires low bandwidths on narrowband media such as power lines. Similar to how SQL is an efficient and flexible database query language for company applications, OSGP offers an efficient and flexible query language for smart grid devices. Similar to SQL, OSGP supports reading and writing of individual attributes, multiple elements or even entire tables.

As a further example, it should be listed here that OSGP includes capabilities for adaptive, directed intervention, which enables any OSGP device to function as a message repeater. In addition, the use of bandwidth is optimized by only resending the parts of the packets that actually need to be resent. OSGP also includes authentication and encryption mechanisms, on the one hand, to ensure the integrity and privacy of the data, as is required in the smart grid.

The layers in between of the OSGP protocol stack provide the ISO / IEC 14908 Control Networking Standard, a field-tested multi-application in smart grids, smart cities and smart building applications with more than 100 million devices installed worldwide. ISO / IEC 14908 is highly optimized in terms of efficiency, availability and scalable in terms of network applications. The low overhead of the ISO / IEC 14908 protocol enables high performance without having to use large bandwidths. Since OSGP is based on ISO / IEC 14908, which is medium-independent, there is the possibility of being transported on any current or future transmission medium. Today, OGSP uses ETSI TS 103 908 on the physical layer. Although a new standard, products are built in conformity with ETSI TS 103 908, in a modification of their formal adaptation.

criticism

The encryption and authentication of the protocol are considered cracked. It is a self-developed procedure that uses the well-known insecure RC4 for encryption and the proprietary OMA digest for authentication ( MAC ) .

Standards

OSGP is based on the following standards.

  • ETSI Group specification GS OSG 001: Open Smart Grid Protocol. Prepared by the ETSI Open Smart Grid Industry Specification Group. This application layer protocol can be operated on multiple communication protocols.
  • ISO / IEC 14908-1 [3]: Information technology — Control network protocol — Part 1: Protocol stack. Published by ISO / IEC JTC 1 / SC 6, this is a standard of a network protocol stack that has been optimized for smart grids, smart buildings and smart cities.
  • ETSI Technical specification TS 103 908: Powerline Telecommunications (PLT); BPSK Narrow Band Power Line Channel for Smart Metering Applications. This specification defines a high-performance, narrow-band powerline channel in which the network is controlled via various smart grid devices within the smart grid. This standard was created by the ETSI Technical Committee for Powerline Telecommunications (TC PLT).

OSGP is supported and maintained by the Energy Services Network Association, a non-profit organization consisting of power plant operators, manufacturers and system integrators.

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Individual evidence

  1. ↑ Dennis Schirrmacher: Encrypted OSGP communication from smart meters can be easily eavesdropped. heise online , May 12, 2015, accessed on May 12, 2015 .
  2. ^ Philipp Jovanovic, Samuel Neves: Dumb Crypto in Smart Grids: Practical Cryptanalysis of the Open Smart Grid Protocol. International Association for Cryptologic Research , April 27, 2015, accessed May 12, 2015 .
  3. ↑ Introduction ESNA , on archived copy ( memento of the original dated December 24, 2012 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed September 28 @1@ 2Template: Webachiv / IABot / esna.org