The purpose of this Annex is identify any configurable parameters that will be reviewed periodically to cater for changing demand and capacity forecasts, where they have not been identified elsewhere in this DSD. This Annex also defines the operational procedures required by DIP Users and DIP Connection Providers to securely exchange metering and consumption information with the DIP using Public Key Infrastructure (PKI) Digital Certificates.

<div data-id="2-2.1" style="text-align: left">2.1 DIP landscape</div>

<div data-id="2-2.2" style="text-align: left">2.2 <u class='defined-term'>DIP Core Services</u></div>

<div data-id="2-2.3" style="text-align: left">2.3 DIP Connections</div>

<div data-id="2-2.5" style="text-align: left">2.5 Active Market Participant</div>

<div data-id="2-2.6" style="text-align: left">2.6 Non-active Market Participant</div>

<div data-id="2" style="text-align: left">2 DIP <u class='defined-term'>Interface</u>s</div>

<div data-id="3-3.1" style="text-align: left">3.1 The <u class='defined-term'>DIP Portal</u></div>

<div data-id="3-3.2" style="text-align: left">3.2 Registration</div>

<div data-id="3-3.3" style="text-align: left">3.3 PKI Role Governance</div>

<div data-id="3-3.4" style="text-align: left">3.4 Interfacing with the DIP</div>

<div data-id="3" style="text-align: left">3 DIP Access and participant engagement</div>

<div data-id="4-4.1" style="text-align: left">4.1 Overview</div>

<div data-id="4-4.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">4.2 DIP Certificate Authority</div>

<div data-id="4-4.3" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">4.3 Chain of trust</div>

<div data-id="4-4.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">4.4 <u class='defined-term'>Digital Certificate</u> usage</div>

<div data-id="4-4.5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">4.5 Key management</div>

<div data-id="4-4.6" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">4.6 <u class='defined-term'>Digital Certificate</u> <u class='defined-term'>Revocation</u></div>

<div data-id="4" style="text-align:justify">4 <u class='defined-term'>Public Key</u> Infrastructure</div>

<div data-id="5-5.1" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">5.1 Security requirements</div>

<div data-id="5-5.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">5.2 Information Security Management System certification</div>

<div data-id="5-5.3" style="text-align:justify">5.3 TLS requirements and configuration</div>

<div data-id="5-5.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">5.4 TLS key generation and Certificate Signature Requests</div>

<div data-id="5" style="text-align:justify">5 DIP Security Requirements</div>

<div data-id="6-6.1" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.1 <u class='defined-term'>DIP User</u>s responsibilities</div>

<div data-id="6-6.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.2 DNS Domain creation/verification</div>

<div data-id="6-6.3" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.3 DIP <u class='defined-term'>Digital Certificate</u> requirements</div>

<div data-id="6-6.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.4 <u class='defined-term'>Certificate Subscriber</u> obligations</div>

<div data-id="6-6.5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.5 <u class='defined-term'>Relying Party</u> Obligations</div>

<div data-id="6-6.6" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.6 Certificate <u class='defined-term'>Revocation</u> Request</div>

<div data-id="6-6.7" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.7 <u class='defined-term'>Digital Certificate</u> renewal</div>

<div data-id="6-6.8" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.8 <u class='defined-term'>Private Key</u>s</div>

<div data-id="6-6.9" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">6.9 Encryption Secrets/Password Guidance</div>

<div data-id="6" style="text-align:justify">6 Managing <u class='defined-term'>Digital Certificate</u>s</div>

<div data-id="7-7.1" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.1 DIP <u class='defined-term'>Message</u> pattern</div>

<div data-id="7-7.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.2 <u class='defined-term'>Message</u> Architecture</div>

<div data-id="7-7.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.4 <u class='defined-term'>Message</u>/event channels</div>

<div data-id="7-7.5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.5 MPAN Address Maintenance Service</div>

<div data-id="7-7.6" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.6 <u class='defined-term'>Message</u> structure</div>

<div data-id="7-7.7" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.7 <u class='defined-term'>Message</u> routing</div>

<div data-id="7-7.8" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.8 <u class='defined-term'>Message</u>/event obfuscation</div>

<div data-id="7-7.9" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.9 <u class='defined-term'>Message</u> Compression Handling</div>

<div data-id="7-7.10" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.10 <u class='defined-term'>Message</u> De-compression Handling</div>

<div data-id="7-7.11" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.11 <u class='defined-term'>Message</u> configuration requirements</div>

<div data-id="7-7.12" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.12 <u class='defined-term'>Message</u> Egress</div>

<div data-id="7-7.13" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.13 <u class='defined-term'>Message</u> Ingress</div>

<div data-id="7-7.14" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.14 Capacity Management</div>

<div data-id="7-7.15" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.15 <u class='defined-term'>Message</u> Security</div>

<div data-id="7-7.16" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">7.16 <u class='defined-term'>Message</u> Alarms</div>

<div data-id="7" style="text-align:justify">7 DIP Messaging</div>

<div data-id="8-8.1" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.1 <u class='defined-term'>Message</u> choreography</div>

<div data-id="8-8.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.2 Simple <u class='defined-term'>Message</u> Exchange</div>

<div data-id="8-8.3" style="text-align:justify">8.3 Level 1 validation - DIP Synchronous rejection</div>

<div data-id="8-8.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.4 Level 2 validation – DIP asynchronous rejection</div>

<div data-id="8-8.5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.5 Level 3 response - <u class='defined-term'>Recipient</u> Synchronous Error (with retry)</div>

<div data-id="8-8.6" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.6 Level 3 validation - <u class='defined-term'>Recipient</u> Synchronous Response (no-retry)</div>

<div data-id="8-8.7" style="text-align:justify">8.7 Level 4 validation - <u class='defined-term'>Recipient</u> validation response (asynchronous)</div>

<div data-id="8-8.8" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.8 Consumption Replay</div>

<div data-id="8-8.9" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.9 <u class='defined-term'>Recipient</u> timeout and ‘Dead-Letter Queue’ handling</div>

<div data-id="8-8.10" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.10 Error Handling &amp; <u class='defined-term'>Message</u> Distribution Patterns</div>

<div data-id="8-8.11" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8.11 Batch <u class='defined-term'>Message</u> Handling</div>

<div data-id="8-8.12" style="text-align:justify">8.12 Workflow message handling</div>

<div data-id="8-8.13" style="text-align:justify">8.13 System non-availability</div>

<div data-id="8" style="text-align:justify">8 <u class='defined-term'>Message</u> choreography</div>

<div data-id="9-9.1" style="text-align:justify">9.1 Send <u class='defined-term'>Message</u>s API</div>

<div data-id="9-9.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.2 Send message DIP Processing (Level 1 Validation)</div>

<div data-id="9-9.3" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.3 Receive <u class='defined-term'>Message</u> <u class='defined-term'>Webhook</u>s</div>

<div data-id="9-9.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.4 Receive <u class='defined-term'>Message</u> Call back Request structure</div>

<div data-id="9-9.5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.5 <u class='defined-term'>Recipient</u> responsibilities</div>

<div data-id="9-9.6" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.6 Replay events</div>

<div data-id="9-9.7" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.7 <u class='defined-term'>Message</u> idempotency</div>

<div data-id="9-9.8" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.8 <u class='defined-term'>Message</u> Throughput</div>

<div data-id="9-9.9" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.9 <u class='defined-term'>Message</u> return codes and response body</div>

<div data-id="9-9.10" style="text-align:justify">9.10 DIP API Actions</div>

<div data-id="9-9.11" style="text-align:justify">9.11 API Version Control</div>

<div data-id="9-9.12" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.12 <u class='defined-term'>Message</u> channel versioning</div>

<div data-id="9-9.13" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.13 Multi-version support – API and message channels</div>

<div data-id="9-9.15" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">9.15 <u class='defined-term'>API Key</u> rotation</div>

<div data-id="9" style="text-align:justify">9 Use of APIs and <u class='defined-term'>Webhook</u>s</div>

<div data-id="10-10.1" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">10.1 Digital signatures</div>

<div data-id="10-10.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">10.2 Digital signature formats</div>

<div data-id="10-10.3" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">10.3 <u class='defined-term'>Message</u> signing</div>

<div data-id="10-10.4" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">10.4 Verifying signatures</div>

<div data-id="10-10.5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">10.5 Signature key generation and Certificate Signing Requests</div>

<div data-id="10" style="text-align:justify">10 Signatures</div>

<div data-id="11-11.1" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">11.1 Number of channels and <u class='defined-term'>DIP User</u>s</div>

<div data-id="11-11.2" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">11.2 Transactional volumes</div>

<div data-id="11-11.3" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">11.3 <u class='defined-term'>Message</u> Latency</div>

<div data-id="11-11.4" style="text-align:justify">11.4 System availability</div>

<div data-id="11" style="text-align:justify">11 DIP capabilities</div>

<div data-id="amendment-record" style="text-align: center">Amendment Record</div>

CONTENTS

DSD002 Annex 2 - Detailed DIP Operational Requirements V2.0