The referral window for Parties to refer the Change Board's decision to approve MP129 to the Panel has now closed, with no referrals received. MP129 was implemented in the November 2022 SEC Release.
What is the issue?
The Data Services Provider (DSP) interpreted Smart Energy Code (SEC) Schedule 8 ‘GB Companion Specification’ (GBCS) as mandating the GBCS variant of the Elliptic Curve Digital Signature Algorithm (ECDSA) for all Device Critical Command signing operations, rather than the more common Commercial National Security Algorithm (CNSA) Suite standard.
The Department for Business, Energy and Industrial Strategy (BEIS) advised that the DSP could have used the CNSA Suite standard and remained compliant. The Smart Metering Key Infrastructure (SMKI) Policy Management Authority (PMA) agreed that the GBCS wording lacked clarity and would need to be updated to explicitly permit the use of CNSA Suite by Remote Parties.
What is the solution?
The Proposed Solution will modify the relevant sections of the GBCS so that it clearly shows that the CNSA variant for Critical Command signing is permitted for use for Parties. The CNSA variant will be permitted for use along with the ECDSA, but it will not replace it.
Who is impacted?
Large Suppliers
Small Suppliers
Network Parties
DCC
This is the April 2024 SEC Modifications Working Group meeting, where we will be discussing: MP085B ‘Synchronisation of Smart Meter voltage measurement periods (meters currently installed)’ MP244 ‘Device Alerts
This is the April 2024 SEC Issues Group meeting, where we discussed: PPM continuity plan Please see the meeting summary here: SEC Issues Group Meeting Summary - April 2024 (CLEAR)
This is the May 2024 SEC Modifications Working Group meeting, where we will be discussing: MP235 'Enhanced Meter Data Access for Other Users' Please see the meeting documentation here:
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