IEEE 1711.2-2019

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IEEE Standard for Secure SCADA Communications Protocol (SSCP)

Published By	Publication Date	Number of Pages
IEEE	2019

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Category: IEEE

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Description

New IEEE Standard – Active. A cryptographic protocol to provide integrity with optional confidentiality for cyber security of substation serial links is defined in this standard. It does not address specific applications or hardware implementations and is independent of the underlying communications protocol.The elevated concern of cyber security throughout the power industry has created a need to protect communications to and from substations. This standard defines a cryptographic protocol known as Secure SCADA Communications Protocol (SSCP) that protects the integrity and, optionally, the confidentiality of asynchronous serial communications typically used by control system equipment. SSCP is primarily intended to protect serial SCADA communications, but can be applied to other serial communications, such as the maintenance ports of intelligent electronic devices. SSCP is independent of the underlying communications link and protocol (e.g., Modbus, DNP3, IEC 60870- 5), and is appropriate for serial communications over leased lines, dial-up lines, multi-drop links, radio, power line carrier, fiber optic, etc. SSCP is suitable for implementation in new equipment or for deployment in bump-in-the-wire devices retrofitting protection to existing systems.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std 1711.2™-2019 Front cover
2	Title page
4	Important Notices and Disclaimers Concerning IEEE Standards Documents
7	Participants
9	Introduction
10	Contents
11	1. Overview 1.1 Scope 1.2 Conventions 1.3 Word usage
12	2. Normative references
13	3. Definitions, acronyms, and abbreviations 3.1 Definitions
14	3.2 Acronyms and abbreviations 4. SSCP frame structures 4.1 Frame headers
16	4.2 Session establish request frame 4.3 Authentication challenge frame 4.4 Authentication response frame
17	4.5 Key exchange frame
23	4.6 Data frames
27	4.7 Close frame 5. State information 5.1 State definitions 5.2 Messages
32	6. SSCP frame validation 6.1 Cryptographic key material
33	6.2 Addressing 6.3 Field validation 6.4 Sequence numbering
34	6.5 Hashed Message Authentication Code (HMAC) 6.6 Authentication response RCV 6.7 Cryptographic algorithm 6.8 Key exchange timeout
35	6.9 Status reporting interval
36	Annex A (informative) Bibliography
37	Back cover