Celebrating Six Years of Post-Quantum Security: The Journey of QRL

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Quantum Computers Could Crack Encryption Sooner Than Expected With New Algorithm

2nd October 2023

One of the most well-established and disruptive uses for a future quantum computer is the ability to crack encryption. A new algorithm could significantly lower the barrier to achieving this.

The saving grace has been that today’s quantum processors are a long way from the kind of scale required. But according to a report in Science, New York University computer scientist Oded Regev has discovered a new algorithm that could reduce the number of qubits required substantially.

In Shor’s original algorithm, the number of gates required to factor a number is the square of the number of bits used to represent it, which is denoted as n^2. Regev’s approach would only require n^1.5

2nd October 2023


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