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Security agencies in the US, UK, France, Germany, the Netherlands, Sweden, Australia, and Canada say QKD cannot replace public-key cryptography in government systems. Programs in the EU, Germany, Canada, China, Japan, Singapore, and India pay for QKD anyway.
QuIC says member states apply the rules inconsistently and that exporters face long, unpredictable waits. It gave no figures on licensing times and asked the Commission to start publishing them.
QKD is provably secure only if its devices behave as modeled and its classical channel is already authenticated. NSA, the NCSC, and four European agencies allow it a niche role at most, citing implementation attacks, trusted relays, and cost.
Applicants must pay 30% of project costs in cash. Each pilot must finish within six months and by October 31, 2027. CSA has published neither a total budget nor a per-project cap.
Elisity sells software that limits which users and devices on a network can reach each other. IonQ said it would gain new channels for its post-quantum and quantum key distribution products through Elisity's more than 100 customer deployments.
The cabinet expects a quantum computer able to break public-key encryption between 2029 and 2035. Ministries are to fund the migration from existing budgets at first. The cabinet will adjust its ambitions if it cannot find the money.
NSA kept the five limitations it listed in 2020 and added an argument that QKD security established at certification can degrade. It dropped a line saying it did not expect to certify or approve QKD products.
A Guangxi University-led team measured infrared emission from the silicon attenuators that dim light on QKD transmitter chips. In worst-case simulations, the authors calculated that the leak could cut a standard link's secure range from about 320 to 19 kilometers.
Error-correction, key-distribution, and algorithmic decoders are three of several jobs that share one name. Only the first runs against a machine's clock, where its speed and accuracy affect the clock rate and qubit cost of fault-tolerant designs.
Sweden's government set five goals for quantum technology to 2036 without naming any sums of money. It intends to carry out its measures through agency assignments, among other means. It also pointed organizations to NCSC's post-quantum migration recommendations.
