SMKI – Organisation Certification Authority Service
from Smart DCC Ltd
Grant of Approval
tScheme Limited grants approval to the electronic trust service identified as:
Smart Metering Key Infrastructure – Organisation Certification Authority Service
as supplied by:
Smart DCC Ltd
of 17, Rochester Row, London SW1P 1QT.
The management system used to deliver this service is certified by:
LRQA Lloyd's Register Quality Assurance Ltd.
of 1 Trinity Park, Bickenhill Lane, Birmingham B37 7ES
to satisfy the criteria defined in the following tScheme Approval Profiles:
| Title | Identity | Issue |
| Base Approval Profile | tSd0111 | 3.00 |
| Approval Profile for Registration Services | tSd0042 | 3.04 |
| Approval Profile for a Certification Authority* | tSd0102 | 3.03 |
| Approval Profile for Certificate Generation* | tSd0104 | 3.03 |
| Approval Profile for Certificate Dissemination | tSd0105 | 3.03 |
| Approval Profile for Certificate Status Management | tSd0106 | 3.03 |
| Approval Profile for Certificate Status Validation | tSd0107 | 3.03 |
*excluding Qualified Certificates
This approval initially commenced on:
9th August 2016
and annual renewal against the current issue of these Approval Profiles was confirmed in:
November 2022
Documents supporting this grant are available by clicking on the links in the table above.
This Grant of approval is issued by:
tScheme Limited
Mulberry Grove
PO Box 3653
WOKINGHAM
RG40 9NN
United Kingdom
Company Number 4000985
Approved Service Description
This Public Service Description relates to Smart DCC Limited’s service known as SMKI Organisation Certification Authority (OCA).
The Smart Meter Key Infrastructure (SMKI) service is a Public Key Infrastructure service operated by Smart DCC Limited under a licence issued by the former Department of Energy and Climate Change (DECC), now the Department of Business, Energy and Industrial Strategy (BEIS), and is governed by the Smart Energy Code (SEC). The SMKI service will be used to control the creation, distribution and management of x.509 digital certificates to support the manufacture and roll-out of smart meters in the United Kingdom for the purposes of ensuring the authenticity, integrity, confidentiality and non-repudiation of communications and data passing between the smart meters and the business systems of energy suppliers, network operators and other authorised service users.
Within the overall SMKI, there are three tScheme approved Certificate Authorities, of which one is known as the SMKI Organisation Certification Authority (OCA). The others are the Infrastructure Key Infrastructure Certification Authority (IKI CA or ICA) and the SMKI Device Certification Authority (DCA).
The OCA will be used to issue organisation certificates to energy suppliers, network operators and other authorised service users for the purposes of creating, sending, receiving and processing communications to and from that organisation.
The issuance of organisation certificates by the OCA is governed by the OCA Certificate Policy (CP), which forms Appendix B to the SEC published on the Smart Energy Code Company website, and the associated Certificate Practice Statement (CPS) published to the SMKI Repository together with the tScheme Service Policy Disclosure Statement (SPDS). This tScheme Public Service Description section is published on the tScheme website.
To gain access to SMKI services and request organisation certificates, energy suppliers, network operators and other authorised service users will be required to complete the registration process that is detailed in the SEC Subsidiary document Appendix D, SMKI Registration Authority Process & Procedures (RAPP) and required to abide to the SMKI Code of Connection. All organisation certificate requests are subject to approval by the SMKI Registration Authority (RA).
Organisation certificates, upon issuance, and certificate status validation information in the form of a Certificate Revocation List (CRL), are published by the OCA to the SMKI Repository. Updates to the CRL are published hourly and each CRL is valid for 24 hours. Access to the SMKI Repository is governed by SMKI Repository Code of Connection.