Dr Michele Mosca has developed a theorem that suggests a pathway to consider in order to protect data and keep it quantum-safe.
Mosca’s theorem stresses the need for organisations to begin due diligence in the post-quantum space immediately. It states that the amount of time that data must remain secure (X), plus the time it takes to upgrade cryptographic systems (Y), is greater than the time at which quantum computers have enough power to break cryptography (Z).
Once organisations are aware of their risk environment, they should be in a position to prioritise activity and mitigate or eliminate risks. However, this may not be a quick or simple process and may take years for each organisation.
Managing technical debt, for example, can be a significant challenge for organisations relying on systems that will be incapable of running modern cryptographic profiles. There is now an opportunity to evaluate migration timelines and understand how long it will take to make infrastructure quantum resistant. To do this, organisations should understand the challenge and allocate budgets for both the mitigation and ongoing monitoring that the post-quantum world will require.
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