What ETSI TR 103 619 CYBER - Migration Strategies and Recommendations to Quantum Safe Schemes requires
ETSI TR 103 619 V1.1.1, published July 2020 under reference DTR/CYBER-QSC-0013, is a Technical Report of the ETSI CYBER technical committee titled Migration strategies and recommendations to Quantum Safe schemes. It addresses the problem of migration to an environment in a Fully Quantum Safe Cryptographic State (FQSCS) from a non-Quantum Safe Cryptographic State and provides recommendations and guidance to ensure safe transition between the two states. Its scope of attack is limited to attacks against the cryptographic elements of the system; all other elements that rely upon cryptography but are not susceptible to attack by a quantum computer are presumed secure. The document assumes an orderly, planned migration and states that emergency migration, where external events such as the immediate availability of a viable quantum computer require immediate transition, is not fully addressed. It identifies a framework of three stages: inventory compilation, preparation of the migration plan, and migration execution. Stage 1 holds that migration cannot be planned without prior knowledge of the assets that will be impacted, so the first stage is to identify the set of cryptographic assets and processes in the system. Stage 2 sets out what the migration plan should include: a full inventory of assets; for each asset whether it will be migrated, when it will be migrated, an orderly sequence of migration of inter-dependent assets, and the migration solution chosen, being replacement by full quantum safe cryptography or a hybrid solution; and testing including dependency testing. Stage 3 implements the plan from stage 2 against the inventory from stage 1, tracking management checkpoints as metrics and conducting exercises to simulate and test the migration, which the report notes can uncover missing inventory elements because it is highly probable the inventory will be incomplete. The report is distinctive for treating migration as a governed business process rather than a technical exercise. Each stage carries explicit business process requirements: a single migration inventory manager for stage 1 reporting to the migration planning manager, a single migration manager for stage 2 with access to all parts of the organization, allocated budget at every stage, approved management of downtime before stage 3 begins, and the direction that the migration manager should not stop partway through a phase of the migration plan. Roles are to be integrated to the existing organization such that it is clear the migration is a board level activity. It also sets substantive technical constraints, including that if any asset to be migrated depends on a Hardware Based Security Environment then that environment should be migrated before the depending asset, that a certificate chain relying on a classical trust anchor cannot be considered Quantum Safe, that if A depends on B then B should be migrated before A, and that where re-encrypting archived assets is economically infeasible those assets are physically moved to explicitly identified quarantine zones and risk managed there.
Pillar: Aviation, Defense & Quantum · Authority: European Telecommunications Standards Institute (ETSI), Technical Committee CYBER · Version: 1.0.0 · Last updated:
Primary source: https://www.etsi.org/deliver/etsi_tr/103600_103699/103619/01.01.01_60/tr_103619v010101p.pdf
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