Power systems management and associated information exchange – Data and communications security – Part 5: Security for IEC 60870-5 and derivatives

Title		Power systems management and associated information exchange – Data and communications security – Part 5: Security for IEC 60870-5 and derivatives
Acronym		IEC 62351-5
Document Type		Standard
Committee		TC 57 - POWER SYSTEMS MANAGEMENT AND ASSOCIATED INFORMATION EXCHANGE
Published Year		2013
Link		https://webstore.iec.ch/publication/6908
Abstract IEC/TS 62351-5:2013(E) specifies messages, procedures and algorithms for securing the operation of all protocols based on or derived from IEC 60870-5: Telecontrol equipment and systems – Transmission protocols. This Technical Specification applies to at least those protocols listed in IEC 60870-5-101, 5-102, 5-103, 5-104. This new edition includes the following main changes with respect to the previous edition: – adds the capability to change Update Keys remotely; – adds security statistics to aid in detecting attacks; – adds measures to avoid being forced to change session keys too often; – discards unexpected messages more often as possible attacks; – adds to the list of permitted security algorithms; – adds new rules for calculating challenge sequence numbers.