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"5 misconceptions about Q-Day"

Beyond the myths: Separating hype from reality to build Quantum-Safe Networks

In the future, we will all face a moment in history known as Q-Day. This will be the day a quantum computer comes online that is powerful enough to crack widely used encryption, such as the security mechanisms used to authenticate bank transactions or protect critical communication in power grids.

Quantum-computing experts put us somewhere between 10 and 30 years before seeing the birth of the first cryptographically relevant quantum computer (CRQC). Regardless of when Q-Day occurs, it is important for us to start preparing for it right now. The first step in preparing for a threat is understanding it.

To that end, Nokia has gathered a team of quantum security experts across our research, product development and standards organizations to publish a new paper called “The Road to Quantum Safe Networks.” In it, we introduce key quantum-security concepts, explain the different threats that CRQCs present to networks, and describe the applicability of different solutions and strategies that will protect networks from future quantum computing attacks.

In our research for the paper, we found that there are some common misconceptions about Q-Day and the security solutions that can protect us from the threats posed by CRQCs. To dispel these misconceptions, I’ve put together a list of the five most common misunderstandings about Q-Day.

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